Amphenol GT Series Reverse Bayonet Coupling Connectors Installation Guide

: June 12, 2024
: Amphenol

Table of Contents

Amphenol GT Connectors with reverse bayonet coupling for Bombardier
Lnsert availability and alternate positioning
Contact arrangements
Part number description
Amphenol part numbers, receptacles
Amphenol part numbers, straight plugs
Amphenol part numbers, 90° angle plugs
Accessories for Bombardier plug protection caps
References
Read User Manual Online (PDF format)
Download This Manual (PDF format)

Bombardier Transportation Design Guide for
AmphenolGT Series
Reverse Bayonet Coupling Connectors® Amphenol GT Series Reverse Bayonet
Coupling Connectors FOR USE BY BOMBARDIER &
BOMBARDIER’S SUBCONTRACTORS
L-2123
Date: 10-01-2004

Amphenol GT Connectors with reverse bayonet coupling for Bombardier

The GT Connector is the preferred connector for the mass transit industry. It was chosen by Bombardier for its heavy duty features and its proven reliability.
This publication was designed for use by Bombardier and Bombardier subcontractors. It is the intention of Amphenol to supply this information in order to simplify the ordering processes of Bombardier for GT Reverse Bayonet connectors.
It will be updated as needed to provide the most current information. Amphenol GT Series Reverse Bayonet Coupling Connectors -
fig Amphenol® GT Reverse Bayonet Coupling Connectors Features:

Quick positive coupling
Audible, tactile and visual indication of full coupling
Waterproof
No lockwiring required
High shock and vibration capabilities
Inserts are made from low smoke/flame retardant or Neoprene
Operating temperature range: –55°C to +125°C
Available in both crimp and solder terminations
Contacts available in gold and silver plating
Numerous finishes available
Black zinc alloy plating (cadmium free) available
Rugged construction; aluminum or stainless steel components
Intermate able with existing VG95234 connectors
2000 couplings minimum
UL recognized

For further information on GT Connectors consult Amphenol catalog 12-024 or contact:
Amphenol Corporation
Amphenol Industrial Operations
40-60 Delaware Avenue
Sidney, New York 13838-1395
Phone:607-563-5011Fax:607-563-5351
www.amphenol-industrial.com

GT Series for Bombardier

Lnsert availability and alternate positioning

INSERT AVAILABILITY

Insert Arrangement| Service Rating| Total Contacts|

Contact Size

---|---|---|---
0| 4| 8| 12| 16| 2/0| 4/0
10SL-3| A| 3| | | | | 3| |
14S-6| Inst.| 6| | | | | 6| |
16S-1| A| 7| | | | | 7| |
16-10| A| 3| | | | 3| | |
18-1| A/Inst.| 10| | | | | 10| |
18-11| A| 5| | | | 5| | |
18-12| A| 6| | | | | 6| |
20-4| D| 4| | | | 4| | |
20-29| A| 17| | | | | 17| |
22-2| D| 3| | | 3| | | |
22-14| A| 19| | | | | 19| |
24-22| D| 4| | | 4| | | |
24-96| Inst.| 28| | | | | 28| |
28-6| D| 3| | 3| | | | |
28-21| A| 37| | | | | 37| |
28-22| D| 6| | 3| | | 3| |
28-84| A| 9| | | 9| | | |
32-AF| A| 55| | | | | 55| |
36-10| A| 48| | | | | 48| |
40-35| D| 35| | | | 35| | |
40-56| A| 85| | | | | 85| |
40-AP| E| 2| | | | | | | 2
40-AS| A| 40| | | | 25| 15| |
40-AT| A| 43| | | 1| 24| 18| |
40-AV| D| 3| | | | | | 3|

ALTERNATE POSITIONING
To avoid cross-plugging problems in applications requiring the use of more than one connector of the same size and arrangement, alternate rotations are available as indicated in the chart below.
As shown in the diagram below, the front face of the pin insert is rotated within the shell in a clockwise direction from the normal shell key. The socket insert would be rotated counter-clockwise the same number of degrees in respect to the normal shell key. Amphenol GT Series Reverse Bayonet Coupling
Connectors - positioning

Insert Arrangement|

Degrees

---|---
W| X| Y| Z
16-10| 90| 180| 270| –
16S-1| 80| –| –| 280
18-1| 70| 145| 215| 290
18-11| –| 170| 265| –
18-12| 80| –| –| 280
20-4| 45| 110| 250| –
20-29| 80| –| –| 280
22-2| 70| 145| 215| 290
22-14| 80| 110| 250| 280
24-22| 45| 110| 250| –
24-96| 65| –| –| –
28-6| 70| 145| 215| 290
28-21| 80| 110| 250| 280
28-22| 70| 145| 215| 290
32-AF| 80| 110| 250| 280
36-10| 80| 125| 235| 280
40-35| 70| 130| 230| 290
40-56| 72| 144| 216| 288

GT Series for Bombardier

Contact arrangements

Amphenol GT Series Reverse Bayonet Coupling Connectors -
Bombardier GT Series for Bombardier
contact arrangements GT Connectors for Bombardier

Part number description

GT	CL	30	RV	FF	36-10	P	W	(025)
1	2	3	4	5	6	7	8

Contact Style and Insert Material
CL = Crimp with low smoke/flame retardant inserts
Shell Style
030-Square flange receptacle – rear panel mount
06- Straight plug
08- 90° angle plug
Connector Class – For details see pictorial description at right and see pages X-X for detailed drawings.
No letter designates connector with no adapter, but with threaded rear to accept an accessory attachment.
CFZ-Adapter, jacketed cable clamp, individual wire sealing grommet, environmental
F- Adapter, clamp for individual wires, individual wire sealing grommet, environmental.
RV-Adapter, individual wire sealing grommet, environmental
Designation for Mounting Holes Receptacle Only
FF -UN Threads (consult Amphenol)
FM-Metric Threads (consult Amphenol)
No designation for standard through mounting holes.
Shell Size and Arrangement
See page 2.
Contact Style
P designates pin contacts
S designates socket contacts
Alternate Position
W, X, Y and Z – See page 2.
No suffix required for normal position.
Connector Modification
(025)Black zinc cobalt
(LC) Less contacts

Amphenol GT Series Reverse Bayonet Coupling Connectors -
description GT Connectors for Bombardier

Amphenol part numbers, receptacles

GT030
Square Flange Receptacle

GT030 Square Flange Receptacle	GT030RV Square Flange Receptacle
****
GTCL03010SL-3(P/S)(025)(LC)	GTCL030RV10SL-3(P/S)(025)(LC)
GTCL03014S-6(P/S)(025)(LC)	GTCL030RV14S-6(P/S)(025)(LC)
GTCL03016S-1(P/S)(025)(LC)	GTCL030RV16S-1(P/S)(025)(LC)
GTCL03016-10(P/S)(025)(LC)	GTCL030RV16-10(P/S)(025)(LC)
GTCL03018-1(P/S)(025)(LC)	GTCL030RV18-1(P/S)(025)(LC)
GTCL03018-11(P/S)(025)(LC)	GTCL030RV18-11(P/S)(025)(LC)
GTCL03018-12(P/S)(025)(LC)	GTCL030RV18-12(P/S)(025)(LC)
GTCL03020-4(P/S)(025)(LC)	GTCL030RV20-4(P/S)(025)(LC)
GTCL03020-29(P/S)(025)(LC)	GTCL030RV20-29(P/S)(025)(LC)
GTCL03022-2(P/S)(025)(LC)	GTCL030RV22-2(P/S)(025)(LC)
GTCL03022-14(P/S)(025)(LC)	GTCL030RV22-14(P/S)(025)(LC)
GTCL03024-22(P/S)(025)(LC)	GTCL030RV24-22(P/S)(025)(LC)
GTCL03024-96(P/S)(025)(LC)	GTCL030RV24-96(P/S)(025)(LC)
GTCL03028-6(P/S)(025)(LC)	GTCL030RV28-6(P/S)(025)(LC)
GTCL03028-21(P/S)(025)(LC)	GTCL030RV28-21(P/S)(025)(LC)
GTCL03028-22(P/S)(025)(LC)	GTCL030RV28-22(P/S)(025)(LC)
GTCL03028-84(P/S)(025)(LC)	GTCL030RV28-84(P/S)(025)(LC)
GTCL03032-AF(P/S)(025)(LC)	GTCL030RV32-AF(P/S)(025)(LC)
GTCL03036-10(P/S)(025)(LC)	GTCL030RV36-10(P/S)(025)(LC)
GTCL03040-35(P/S)(025)(LC)	GTCL030RV40-35(P/S)(025)(LC)
GTCL03040-56(P/S)(025)(LC)	GTCL030RV40-56(P/S)(025)(LC)
GTCL03040-AP(P/S)(025)(LC)	GTCL030RV40-AP(P/S)(025)(LC)
GTCL03040-AS(P/S)(025)(LC)	GTCL030RV40-AS(P/S)(025)(LC)
GTCL03040-AT(P/S)(025)(LC)	GTCL030RV40-AT(P/S)(025)(LC)
GTCL03040-AV(P/S)(025)(LC)	GTCL030RV40-AV(P/S)(025)(LC)

See page 5 for complete description of how the Amphenol part numbers are built.
GT Connectors for Bombardier

Amphenol part numbers, straight plugs

GT06F Straight Plug| GT06CFZ Straight Plug| GT06RV Straight Plug
---|---|---
| |
GTCL06F10SL-3(P/S)(025)(LC)| GTCL06CFZ10SL-3(P/S)(025)(LC)| GTCL06RV10SL-3(P/S)(025)(LC)
GTCL06F14S-6(P/S)(025)(LC)| GTCL06CFZ14S-6(P/S)(025)(LC)| GTCL06RV14S-6(P/S)(025)(LC)
GTCL06F16S-1(P/S)(025)(LC)| GTCL06CFZ16S-1(P/S)(025)(LC)| GTCL06RV16S-1(P/S)(025)(LC)
GTCL06F16-10(P/S)(025)(LC)| GTCL06CFZ16-10(P/S)(025)(LC)| GTCL06RV16-10(P/S)(025)(LC)
GTCL06F18-1(P/S)(025)(LC)| GTCL06CFZ18-1(P/S)(025)(LC)| GTCL06RV18-1(P/S)(025)(LC)
GTCL06F18-11(P/S)(025)(LC)| GTCL06CFZ18-11(P/S)(025)(LC)| GTCL06RV18-11(P/S)(025)(LC)
GTCL06F18-12(P/S)(025)(LC)| GTCL06CFZ18-12(P/S)(025)(LC)| GTCL06RV18-12(P/S)(025)(LC)
GTCL06F20-4(P/S)(025)(LC)| GTCL06CFZ20-4(P/S)(025)(LC)| GTCL06RV20-4(P/S)(025)(LC)
GTCL06F20-29(P/S)(025)(LC)| GTCL06CFZ20-29(P/S)(025)(LC)| GTCL06RV20-29(P/S)(025)(LC)
GTCL06F22-2(P/S)(025)(LC)| GTCL06CFZ22-2(P/S)(025)(LC)| GTCL06RV22-2(P/S)(025)(LC)
GTCL06F22-14(P/S)(025)(LC)| GTCL06CFZ22-14(P/S)(025)(LC)| GTCL06RV22-14(P/S)(025)(LC)
GTCL06F24-22(P/S)(025)(LC)| GTCL06CFZ24-22(P/S)(025)(LC)| GTCL06RV24-22(P/S)(025)(LC)
GTCL06F24-96(P/S)(025)(LC)| GTCL06CFZ24-96(P/S)(025)(LC)| GTCL06RV24-96(P/S)(025)(LC)
GTCL06F28-6(P/S)(025)(LC)| GTCL06CFZ28-6(P/S)(025)(LC)| GTCL06RV28-6(P/S)(025)(LC)
GTCL06F28-21(P/S)(025)(LC)| GTCL06CFZ28-21(P/S)(025)(LC)| GTCL06RV28-21(P/S)(025)(LC)
GTCL06F28-22(P/S)(025)(LC)| GTCL06CFZ28-22(P/S)(025)(LC)| GTCL06RV28-22(P/S)(025)(LC)
GTCL06F28-84(P/S)(025)(LC)| GTCL06CFZ28-84(P/S)(025)(LC)| GTCL06RV28-84(P/S)(025)(LC)
GTCL06F32-AF(P/S)(025)(LC)| GTCL06CFZ32-AF(P/S)(025)(LC)| GTCL06RV32-AF(P/S)(025)(LC)
GTCL06F36-10(P/S)(025)(LC)| GTCL06CFZ36-10(P/S)(025)(LC)| GTCL06RV36-10(P/S)(025)(LC)
GTCL06F40-35(P/S)(025)(LC)| GTCL06CFZ40-35(P/S)(025)(LC)| GTCL06RV40-35(P/S)(025)(LC)
GTCL06F40-56(P/S)(025)(LC)| GTCL06CFZ40-56(P/S)(025)(LC)| GTCL06RV40-56(P/S)(025)(LC)
GTCL06F40-AP(P/S)(025)(LC)| GTCL06CFZ40-AP(P/S)(025)(LC)| GTCL06RV40-AP(P/S)(025)(LC)
GTCL06F40-AS(P/S)(025)(LC)| GTCL06CFZ40-AS(P/S)(025)(LC)| GTCL06RV40-AS(P/S)(025)(LC)
GTCL06F40-AT(P/S)(025)(LC)| GTCL06CFZ40-AT(P/S)(025)(LC)| GTCL06RV40-AT(P/S)(025)(LC)
GTCL06F40-AV(P/S)(025)(LC)| GTCL06CFZ40-AV(P/S)(025)(LC)| GTCL06RV40-AV(P/S)(025)(LC)

See page 5 for complete description of how the Amphenol part numbers are built.
GT Connectors for Bombardier

Amphenol part numbers, 90° angle plugs

GT08F 90° Angle Plug	GT08CFZ 90° Angle Plug
GTCL08F10SL-3(P/S)(025)(LC)	GTCL08CFZ10SL-3(P/S)(025)(LC)
GTCL08F14S-6(P/S)(025)(LC)	GTCL08CFZ14S-6(P/S)(025)(LC)
GTCL08F16S-1(P/S)(025)(LC)	GTCL08CFZ16S-1(P/S)(025)(LC)
GTCL08F16-10(P/S)(025)(LC)	GTCL08CFZ16-10(P/S)(025)(LC)
GTCL08F18-1(P/S)(025)(LC)	GTCL08CFZ18-1(P/S)(025)(LC)
GTCL08F18-11(P/S)(025)(LC)	GTCL08CFZ18-11(P/S)(025)(LC)
GTCL08F18-12(P/S)(025)(LC)	GTCL08CFZ18-12(P/S)(025)(LC)
GTCL08F20-4(P/S)(025)(LC)	GTCL08CFZ20-4(P/S)(025)(LC)
GTCL08F20-29(P/S)(025)(LC)	GTCL08CFZ20-29(P/S)(025)(LC)
GTCL08F22-2(P/S)(025)(LC)	GTCL08CFZ22-2(P/S)(025)(LC)
GTCL08F22-14(P/S)(025)(LC)	GTCL08CFZ22-14(P/S)(025)(LC)
GTCL08F24-22(P/S)(025)(LC)	GTCL08CFZ24-22(P/S)(025)(LC)
GTCL08F24-96(P/S)(025)(LC)	GTCL08CFZ24-96(P/S)(025)(LC)
GTCL08F28-6(P/S)(025)(LC)	GTCL08CFZ28-6(P/S)(025)(LC)
GTCL08F28-21(P/S)(025)(LC)	GTCL08CFZ28-21(P/S)(025)(LC)
GTCL08F28-22(P/S)(025)(LC)	GTCL08CFZ28-22(P/S)(025)(LC)
GTCL08F28-84(P/S)(025)(LC)	GTCL08CFZ28-84(P/S)(025)(LC)
GTCL08F32-AF(P/S)(025)(LC)	GTCL08CFZ32-AF(P/S)(025)(LC)
GTCL08F36-10(P/S)(025)(LC)	GTCL08CFZ36-10(P/S)(025)(LC)
GTCL08F40-35(P/S)(025)(LC)	GTCL08CFZ40-35(P/S)(025)(LC)
GTCL08F40-56(P/S)(025)(LC)	GTCL08CFZ40-56(P/S)(025)(LC)
GTCL08F40-AP(P/S)(025)(LC)	GTCL08CFZ40-AP(P/S)(025)(LC)
GTCL08F40-AS(P/S)(025)(LC)	GTCL08CFZ40-AS(P/S)(025)(LC)
GTCL08F40-AT(P/S)(025)(LC)	GTCL08CFZ40-AT(P/S)(025)(LC)
GTCL08F40-AV(P/S)(025)(LC)	GTCL08CFZ40-AV(P/S)(025)(LC)

See page 5 for complete description of how the Amphenol part numbers are built.
GT030 for Bombardier
square flange receptacle for rear panel mounting

Four through mounting holes or optional threaded holes
Threaded rear to accept accessory attachment
Environment proof when mounted with a proper sealing gasket (see page 16)

Inches

**Shell Size| B
Thread Class 2A| ****L
± .012| M
+ .016
– .000| N
+ .000
– .006| ****P
± .008| ****R
± .004| ****S
± .012| T
+ .004
– .000**
---|---|---|---|---|---|---|---|---
10SL| .6250-24UNEF| 1.087| .717| .717| .110| .717| 1.000| .126
14S| .7500-20UNEF| 1.087| .717| .969| .126| .906| 1.181| .126
16S| .8750-20UNEF| 1.087| .717| 1.079| .126| .969| 1.280| .126
16| .8750-20UNEF| 1.331| .846| 1.079| .126| .969| 1.280| .126
18| 1.0000-20UNEF| 1.331| .907| 1.213| .157| 1.063| 1.378| .126
20| 1.1250-18UNEF| 1.331| .907| 1.346| .157| 1.157| 1.496| .126
22| 1.2500-18UNEF| 1.331| .907| 1.472| .157| 1.252| 1.614| .126
24| 1.3750-18UNEF| 1.331| .907| 1.610| .157| 1.374| 1.752| .146
28| 1.6250-18UNEF| 1.406| .947| 1.839| .157| 1.563| 2.000| .146
32| 1.8750-16UN| 1.469| .947| 2.102| .157| 1.752| 2.244| .169
36| 2.0625-16UN| 1.469| .947| 2.346| .157| 1.937| 2.500| .169
40| 2.3125-16UN| 1.469| .947| 2.579| .157| 2.185| 2.752| .169

Millimeters

**Shell Size| ****L
± 0.3| M
+ 0.4
– 0.0| N
+ 0.00
– 0.15| ****P
± 0.2| ****R
± 0.1| ****S
± 0.3| T
+ 0.1
– 0.0**
---|---|---|---|---|---|---|---
10SL| 27.6| 18.2| 18.2| 2.8| 18.2| 25.4| 3.2
14S| 27.6| 18.2| 24.6| 3.2| 23.0| 30.0| 3.2
16S| 27.6| 18.2| 27.4| 3.2| 24.6| 32.5| 3.2
16| 33.8| 21.5| 27.4| 3.2| 24.6| 32.5| 3.2
18| 33.8| 23.05| 30.8| 4.0| 27.0| 35.0| 3.2
20| 33.8| 23.05| 34.2| 4.0| 29.4| 38.0| 3.2
22| 33.8| 23.05| 37.4| 4.0| 31.8| 41.0| 3.2
24| 33.8| 23.05| 40.9| 4.0| 34.9| 44.5| 3.7
28| 35.7| 24.05| 46.7| 4.0| 39.7| 50.8| 3.7
32| 37.3| 24.05| 53.4| 4.0| 44.5| 57.0| 4.3
36| 37.3| 24.05| 59.6| 4.0| 49.2| 63.5| 4.3
40| 37.3| 24.05| 65.5| 4.0| 55.5| 69.9| 4.3

All dimensions for reference only.
GT030RV for Bombardier
square flange receptacle for rear panel mounting

Four through mounting holes or optional threaded holes
With wire sealing grommet for individual wires
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors -
mounting Inches

**Shell Size| ****L
Max.| M
+ .016
– .000| N
+ .000
– .006| ****P
± .008| ****R
± .004| ****S
± .012| T
+ .004
– .000| ****KK
Max.**
---|---|---|---|---|---|---|---|---
10SL| 1.890| .717| .717| .110| .717| 1.000| .126| .787
14S| 1.890| .717| .969| .126| .906| 1.181| .126| .945
16S| 1.890| .717| 1.079| .126| .969| 1.280| .126| 1.024
16| 2.205| .846| 1.079| .126| .969| 1.280| .126| 1.024
18| 2.244| .907| 1.213| .157| 1.063| 1.378| .126| 1.161
20| 2.244| .907| 1.346| .157| 1.157| 1.496| .126| 1.299
22| 2.244| .907| 1.472| .157| 1.252| 1.614| .126| 1.417
24| 2.244| .907| 1.610| .157| 1.374| 1.752| .146| 1.575
28| 2.244| .947| 1.839| .157| 1.563| 2.000| .146| 1.811
32| 2.362| .947| 2.102| .157| 1.752| 2.244| .169| 2.028
36| 2.362| .947| 2.346| .157| 1.937| 2.500| .169| 2.283
40| 2.362| .947| 2.579| .157| 2.185| 2.752| .169| 2.539

Millimeters

**Shell Size| ****L
Max.| M
+ 0.4
– 0.0| N
+ 0.00
– 0.15| ****P
± 0.2| ****R
± 0.1| ****S
± 0.3| T
+ 0.1
– 0.0| ****KK
Max.**
---|---|---|---|---|---|---|---|---
10SL| 48.0| 18.20| 18.2| 2.8| 18.2| 25.4| 3.2| 20.0
14S| 48.0| 18.20| 24.6| 3.2| 23.0| 30.0| 3.2| 24.0
16S| 48.0| 18.20| 27.4| 3.2| 24.6| 32.5| 3.2| 26.0
16| 56.0| 21.50| 27.4| 3.2| 24.6| 32.5| 3.2| 26.0
18| 57.0| 23.05| 30.8| 4.0| 27.0| 35.0| 3.2| 29.5
20| 57.0| 23.05| 34.2| 4.0| 29.4| 38.0| 3.2| 33.0
22| 57.0| 23.05| 37.4| 4.0| 31.8| 41.0| 3.2| 36.0
24| 57.0| 23.05| 40.9| 4.0| 34.9| 44.5| 3.7| 40.0
28| 57.0| 24.05| 46.7| 4.0| 39.7| 50.8| 3.7| 46.0
32| 60.0| 24.05| 53.4| 4.0| 44.5| 57.0| 4.3| 51.5
36| 60.0| 24.05| 59.6| 4.0| 49.2| 63.5| 4.3| 58.0
40| 60.0| 24.05| 65.5| 4.0| 55.5| 69.9| 4.3| 64.5

GT06F for Bombardier straight plug

With a wire sealing grommet and cable clamp
For use with individual wires
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
1 Inches

Shell Size| L
Max.| Q
Max.| Z
Nominal| KK
Max.| LL
Max.
---|---|---|---|---|---
10SL| 2.165| .898| .220| .894| 4.724
14S| 2.362| 1.150| .312| 1.083| 4.724
16S| 2.756| 1.260| .437| 1.181| 4.724
16| 2.756| 1.260| .437| 1.181| 4.921
18| 2.953| 1.437| .562| 1.299| 4.921
20| 2.953| 1.571| .625| 1.476| 4.921
22| 2.953| 1.697| .625| 1.476| 4.921
24| 3.543| 1.835| .750| 1.705| 4.921
28| 3.543| 2.102| .750| 1.705| 4.921
32| 3.543| 2.366| .937| 2.035| 4.921
36| 3.937| 2.610| 1.250| 2.283| 5.315
40| 4.921| 2.850| 1.375| 2.579| 5.709

Millimeters

Shell Size| L
Max.| Q

Max.

| Z
Nominal| KK
Max.| LL
Max.
---|---|---|---|---|---
10SL| 55| 22.8| 5.58| 22.7| 120
14S| 60| 29.2| 7.92| 27.5| 120
16S| 70| 32.0| 11.09| 30.0| 120
16| 70| 32.0| 11.09| 30.0| 125
18| 75| 36.5| 14.27| 33.0| 125
20| 75| 39.9| 15.87| 37.5| 125
22| 75| 43.1| 15.87| 37.5| 125
24| 90| 46.6| 19.05| 43.3| 125
28| 90| 53.4| 19.05| 43.3| 125
32| 90| 60.1| 23.79| 51.7| 125
36| 100| 66.3| 31.75| 58.0| 135
40| 125| 72.4| 34.92| 65.5| 145

GT06CFZ for Bombardier straight plug

With a wire sealing grommet
With a cable clamp and seal
For use with jacketed cable
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
2 Inches

Shell Size| J
Approx.| L
Approx.| Q
Max.| Z
---|---|---|---|---
Open| Closed
10SL| .551| 2.752| .898| .312| .094
14S| .732| 2.898| 1.150| .438| .230
16S| .732| 2.898| 1.260| .531| .315
16| .653| 3.216| 1.260| .531| .315
18| .705| 3.307| 1.437| .625| .378
20| .705| 3.311| 1.571| .748| .445
22| .744| 3.350| 1.697| .748| .445
24| .689| 3.484| 1.835| .937| .610
28| .921| 3.736| 2.102| .937| .610
32| 1.016| 4.142| 2.366| 1.250| .921
36| 1.031| 4.390| 2.610| 1.378| .921
40| 1.614| 4.640| 2.854| 1.624| 1.177

Millimeters

Shell Size| J
Approx.| L
Approx.| Q
Max.| Z
---|---|---|---|---
Open| Closed
10SL| 14.0| 69.6| 22.8| 7.93| 2.38
14S| 18.6| 73.6| 29.2| 11.12| 5.84
16S| 18.6| 73.6| 32.0| 13.48| 8.00
16| 16.6| 81.7| 32.0| 13.48| 8.00
18| 17.9| 84.0| 36.5| 15.87| 9.60
20| 17.9| 84.1| 39.9| 19.00| 11.30
22| 18.9| 85.1| 43.1| 19.00| 11.30
24| 17.5| 88.5| 46.6| 23.80| 15.50
28| 23.4| 94.9| 53.4| 23.80| 15.50
32| 25.8| 105.2| 60.1| 31.75| 23.40
36| 26.2| 111.5| 66.3| 35.00| 23.40
40| 41.0| 111.5| 72.5| 41.25| 29.90

GT06RV for Bombardier straight plug

With a wire sealing grommet
For use with individual wires
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
3 Inches

Shell Size| L
Max.| Q
Max.| KK
Max.
---|---|---|---
10SL| 1.417| .898| .787
14S| 1.437| 1.150| .945
16S| 1.437| 1.260| 1.024
16| 1.929| 1.260| 1.024
18| 1.929| 1.437| 1.161
20| 1.969| 1.571| 1.299
22| 1.969| 1.697| 1.417
24| 2.008| 1.835| 1.543
28| 2.008| 2.102| 1.811
32| 2.087| 2.366| 2.028
36| 2.106| 2.610| 2.283
40| 2.126| 2.850| 2.539

Millimeters

Shell Size| L
Max.| Q
Max.| KK
Max.
---|---|---|---
10SL| 36.0| 22.8| 20.0
14S| 36.5| 29.2| 24.0
16S| 36.5| 32.0| 26.0
16| 49.0| 32.0| 26.0
18| 49.0| 36.5| 29.5
20| 50.0| 39.9| 33.0
22| 50.0| 43.1| 36.0
24| 51.0| 46.6| 40.0
28| 51.0| 53.4| 46.0
32| 53.0| 60.1| 51.5
36| 53.5| 66.3| 58.0
40| 54.0| 72.4| 64.5

GT08F for Bombardier 90° angle plug

With a wire sealing grommet and cable clamp
For use with individual wires
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
4 Inches

**Shell Size| ****K
Max.| ****L
Max.| ****Q
Max.| ****Z
Max.| ****KK
Max.| ****LL
Max.**
---|---|---|---|---|---|---
10SL| 1.654| 1.772| .898| .220| .894| 3.937
14S| 1.654| 1.850| 1.150| .312| 1.083| 3.937
16S| 1.772| 1.890| 1.299| .437| 1.181| 3.937
16| 1.772| 2.244| 1.299| .437| 1.181| 3.937
18| 2.087| 2.283| 1.437| .562| 1.299| 3.937
20| 2.087| 2.402| 1.571| .625| 1.476| 3.937
22| 2.087| 2.402| 1.697| .625| 1.476| 3.937
24| 2.283| 2.598| 1.835| .750| 1.705| 3.937
28| 2.283| 2.598| 2.102| .750| 1.705| 3.937
32| 2.598| 2.835| 2.366| .937| 2.061| 4.331
36| 2.717| 2.953| 2.610| 1.250| 2.283| 4.331
40| 3.740| 3.071| 2.850| 1.375| 2.579| 5.512

Millimeters

**Shell Size| ****K
Max.| ****L
Max.| ****Q
Max.| ****Z
Max.| ****KK
Max.| ****LL
Max.**
---|---|---|---|---|---|---
10SL| 42| 45| 22.8| 5.58| 22.7| 100
14S| 42| 47| 29.2| 7.92| 27.5| 100
16S| 45| 48| 33.0| 11.09| 30.0| 100
16| 45| 57| 33.0| 11.09| 30.0| 100
18| 53| 58| 36.5| 14.27| 33.0| 100
20| 53| 61| 39.9| 15.87| 37.5| 100
22| 53| 61| 43.1| 15.87| 37.5| 100
24| 58| 66| 46.6| 19.05| 43.3| 100
28| 58| 66| 53.4| 19.05| 43.3| 100
32| 66| 72| 60.1| 23.79| 51.7| 110
36| 69| 75| 66.3| 31.75| 58.0| 110
40| 95| 78| 72.4| 34.92| 65.5| 140

GT08CFZ for Bombardier 90° angle plug

With a wire sealing grommet
Includes clamp to grip and seal jacketed cable
Environment proof

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
5 Inches

Shell **Size*| K
Max.| L
Max.| Q
Dia.| Z| KK
± .008
---|---|---|---|---|---
Open| Closed**
10SL| 2.402| 1.772| .898| .312| .094| .890
18| 2.677| 2.283| 1.437| .625| .378| 1.220
20| 2.677| 2.402| 1.571| .748| .445| 1.469
22| 2.677| 2.402| 1.697| .748| .445| 1.469
24| 2.992| 2.598| 1.835| .937| .610| 1.654
28| 2.992| 2.598| 2.102| .937| .610| 1.654
32| 3.425| 2.835| 2.366| 1.250| .921| 2.126
36| 3.858| 2.953| 2.610| 1.378| .921| 2.248
40| 4.055| 3.071| 2.850| 1.624| 1.177| 2.500

Millimeters

Shell **Size*| K
Max.| L
Max.| Q
Dia.| Z| KK
± 0.2
---|---|---|---|---|---
Open| Closed**
10SL| 61| 45| 22.8| 7.93| 2.38| 22.6
18| 68| 58| 36.5| 15.87| 9.60| 31.0
20| 68| 61| 39.9| 19.00| 11.30| 37.3
22| 68| 61| 43.1| 19.00| 11.30| 37.3
24| 76| 66| 46.6| 23.80| 15.50| 42.0
28| 76| 66| 53.4| 23.80| 15.50| 42.0
32| 87| 72| 60.1| 31.75| 23.40| 54.0
36| 98| 75| 66.3| 35.00| 23.40| 57.1
40| 103| 78| 72.4| 41.25| 29.90| 63.5

All dimensions for reference only.

14S, 16S and 16 shell sizes are available upon request.
GT Connector accessories for Bombardier
10-40450, 10-36675, 10-580649 sealing gaskets

Installation Dimensions

| | Front Panel| Rear Panel| |
| | Versions| Version| |
MS| | B| B| C|
Shell| A| + .016| + .016| + .016| D
Size| ± .010| – .000| – .000| – .000| ± .010
10SL| .719| .625| .724| 1.000| .172
14S| .906| .875| .976| 1.188| .172
16S| .969| 1.000| 1.087| 1.281| .172
16| .969| 1.000| 1.087| 1.281| .172
18| 1.063| 1.125| 1.220| 1.375| .203
20| 1.156| 1.250| 1.354| 1.500| .203
22| 1.250| 1.375| 1.480| 1.625| .203
24| 1.375| 1.500| 1.618| 1.750| .203
28| 1.563| 1.750| 1.846| 2.000| .203
32| 1.750| 2.000| 2.110| 2.250| .219
36| 1.938| 2.188| 2.354| 2.500| .219
40| 2.188| 2.438| 2.587| 2.750| .219

Installation Dimensions

| | Front Panel| Rear Panel| |
| | Versions| Version| |
MS| | B| B| C|
Shell| A| + 0.4| + 0.4| + 0.4| D
Size| ± 0.2| – 0.0| – 0.0| – 0.0| ± 0.2
10SL| 18.2| 15.9| 18.4| 25.4| 4.36
14S| 23.0| 22.2| 24.8| 30.2| 4.36
16S| 24.6| 25.4| 27.6| 32.5| 4.36
16| 24.6| 25.4| 27.6| 32.5| 4.36
18| 27.0| 28.57| 31.0| 35.0| 5.15
20| 29.4| 31.75| 34.4| 38.1| 5.15
22| 31.8| 34.9| 37.6| 41.2| 5.15
24| 34.9| 38.1| 41.1| 44.5| 5.15
28| 39.7| 44.45| 46.9| 50.8| 5.15
32| 44.5| 50.8| 53.6| 57.2| 5.56
36| 49.2| 55.57| 59.8| 63.5| 5.56
40| 55.6| 61.92| 65.7| 69.9| 5.56

PLAIN FLAT GASKET
The Amphenol® plain flat gasket of synthetic rubber material is provided to take complete advantage of waterproof and pressure sealing features. It is for use with the flange mounted receptacle.
SHIELDING GASKET
This flat gasket is provided to give the maximum in connector performance. Its special feature is in providing the maximum radio shielding under difficult conditions of high receiver sensitivity and low signal strength while retaining the sealing characteristics of the plain gasket. This gasket is for use with the flange mounting receptacle.
LOW TEMPERATURE GASKET
This gasket is provided for applications where the major requirement is resistance to the injurious effects of extremely low temperature. Even at temperatures as low as –67°F this gasket retains its resiliency and will seal a pressure differential of 30 psi.
Additional versions of gaskets are available including low smoke zero halogen, and also high temperature and conductive types. Consult Amphenol lndustrial Operations, Sidney NY, for further information.

Order Data for

Front Panel Mount Gaskets

Front Panel Plain Version| Front Panel Shielding Version| Front Panel Low Temperature
Version| Front Panel Low Smoke ZH Version
10-40450-10| 10-40450-10S| 10-36675-10| LS-40450-10
10-40450-14| 10-40450-14S| 10-36675-14| LS-40450-14
10-40450-16| 10-40450-16S| 10-36675-16| LS-40450-16
10-40450-18| 10-40450-18S| 10-36675-18| LS-40450-18
10-40450-20| 10-40450-20S| 10-36675-20| LS-40450-20
10-40450-22| 10-40450-22S| 10-36675-22| LS-40450-22
10-40450-24| 10-40450-24S| 10-36675-24| LS-40450-24
10-40450-28| 10-40450-28S| 10-36675-28| LS-40450-26
10-40450-32| 10-40450-32S| 10-36675-32| LS-40450-32
10-40450-36| 10-40450-36S| 10-36675-36| LS-40450-36
10-40450-40| 10-40450-40S| 10-36675-40| LS-40450-40

Order Data for
Rear Panel Mount Gaskets

Rear Panel Plain Version| Rear Panel Low Smoke ZH Version
10-580649-11| LS-580649-11
10-580649-14| LS-580649-14
10-580649-16| LS-580649-16
10-580649-18| LS-580649-18
10-580649-20| LS-580649-20
10-580649-22| LS-580649-22
10-580649-24| LS-580649-24
10-580649-26| LS-580649-26
10-580649-32| LS-580649-32
10-580649-36| LS-580649-36
10-580649-40| LS-580649-40

GT Connector accessories for Bombardier receptacle protection caps

Protective metal caps which seal the front of receptacles
Includes a chain for retention of the cap at the required location

* 10-580902-XXY* To complete order number, add shell size and suffix number. For example, shell size 11 with black zinc cobalt plate would be 10-580902-11Y.
Inches**

**Shell Size| D
+ .020
– .000| ****L
Max.| N
Max.| ****LL
Approx.**
---|---|---|---|---
11| .173| .700| .905| 5.000
14| .173| .700| 1.181| 5.000
16| .173| .700| 1.280| 5.000
17| .173| .900| 1.280| 5.000
18| .173| .900| 1.457| 5.000
20| .173| .900| 1.594| 5.000
22| .173| .900| 1.713| 5.000
24| .173| .900| 1.850| 5.000
28| .220| .900| 2.126| 7.480
32| .261| .900| 2.382| 7.480
36| .261| .900| 2.638| 7.480
40| .261| .900| 2.874| 7.480

Millimeters

**Shell Size| D
+ 0.5
– 0.0| ****L
Max.| ****N
Max.| ****LL
Approx.**
---|---|---|---|---
11| 4.4| 17.8| 23.0| 127
14| 4.4| 17.8| 30.0| 127
16| 4.4| 17.8| 32.5| 127
17| 4.4| 22.9| 32.5| 127
18| 4.4| 22.9| 37.0| 127
20| 4.4| 22.9| 40.5| 127
22| 4.4| 22.9| 43.5| 127
24| 4.4| 22.9| 47.0| 127
28| 5.6| 22.9| 54.0| 190
32| 5.6| 22.9| 60.5| 190
36| 5.6| 22.9| 67.0| 175
40| 5.6| 22.9| 73.0| 190

All dimensions for reference only.
GT Connector

Accessories for Bombardier plug protection caps

Protective metal caps which seal the front of plugs
Includes a chain for retention of the cap at the required location

Amphenol GT Series Reverse Bayonet Coupling Connectors - mounting
11 * 10-580903-XXY
* To complete order number, add shell size and suffix number. For example, shell size 11 with black zinc cobalt plate would be 10-580903-11Y.
Inches**

**Shell Size| D
+ .020
– .000| ****L**

Max.

| **N
Max.| ****LL
Approx.**
---|---|---|---|---
11| .157| .945| .807| 5.000
14| .157| .945| 1.059| 5.000
16| .157| .945| 1.169| 5.000
17| .157| .945| 1.169| 5.000
18| .157| .945| 1.303| 5.000
20| .189| 1.260| 1.437| 5.520
22| .189| 1.260| 1.563| 5.520
24| .189| 1.260| 1.701| 5.520
28| .220| 1.260| 1.929| 7.480
32| .261| 1.260| 2.193| 7.480
36| .261| 1.260| 2.437| 7.480
40| .261| 1.260| 2.665| 7.480

Millimeters

**Shell Size| D
+ 0.5
– 0.0| ****L
Max.| ****N
Max.| ****LL
Approx.**
---|---|---|---|---
11| 4.0| 24| 20.5| 127
14| 4.0| 24| 26.9| 127
16| 4.0| 24| 29.7| 127
17| 4.0| 24| 29.7| 127
18| 4.0| 24| 33.1| 127
20| 4.8| 32| 36.5| 140
22| 4.8| 32| 39.7| 140
24| 4.8| 32| 43.2| 140
28| 4.8| 32| 49.0| 190
32| 5.6| 32| 55.7| 190
36| 5.6| 32| 61.9| 190
40| 5.6| 32| 67.7| 190

All dimensions for reference only.
GT accessories for Bombardier
rear mounting data, panel cut-out dimensions, sealing plugs, sealing ranges, backheel torque forces
REAR MOUNTING DATA MAXIMUM PANEL THICKNESS

Size|

Dimension D

---|---

GT030

Inches| (mm)
10SL| .303| 7.70
14S| .303| 7.70
16S| .303| 7.70
16| .242| 6.15
18| .303| 7.70
20| .303| 7.70
22| .303| 7.70
24| .303| 7.70
28| .343| 8.70
32| .309| 7.85
36| .309| 7.85
40| .309| 7.85

SEALING PLUG 10-405996-XX
Sealing plugs are used to fill unused holes in multi-holed grommet configurations. Amphenol GT Series Reverse Bayonet Coupling Connectors -
THICKNESS 2

**Order No.| ****Contact Size| ****Wire Size| ****Color Code**|

Inches

---|---|---|---|---
A Dia.
±.010| B
±.005| C
±.010
10-405996-16| 16| 20-16| Blue| .083| .133| .564
10-405996-12| 12| 14-12| Yellow| .121| .171| .564
10-405996-8| 8| 10-8| Red| .185| .315| .470
10-405996-4| 4| 4-6| Blue| .310| .415| .470
10-405996-0| 0| 0-2| Yellow| .440| .605| 1.000

Millimeters

A Dia.
± 0.2| B
± 0.1| C
± 0.2
2.1| 3.4| 14.3
3.1| 4.3| 14.3
4.7| 8.0| 11.9
7.9| 10.5| 11.9
11.2| 15.4| 25.4

GROMMET HOLE SEALING RANGES

**Hole Size**|

Sealing Range

---|---
(mm)| Inches
16| 2.3 – 3.0| .090 – .118
12| 3.2 – 4.5| .126 – .177
8| 3.8 – 6.5| .150 – .256
4| 7.1 – 9.3| .279 – .366
0| 10.0 – 13.7| .394 – .539

RECOMMENDED TORQUE FORCES CONNECTOR BACKSHELLS

Size	In./Lb. Max.
10SL	26
14S	44
16	50
16S	50
18	55
20	65
22	85
24	90
28	114
32	120
36	153
40	170

PANEL CUT-OUT DIMENSIONS

Shell Size| A Dia. Hole Size|

Connector Styles

---|---|---
030| Rear Mount 030
B ±.004| C Dia.
10SL| .126| .717| 1 3/4
14S| .126| .906| 1
16S/16| .126| .969| 1 1/8
18| .126| 1.063| 1 1/4
20| .126| 1.157| 1 3/8
22| .126| 1.252| 1 1/2
24| .146| 1.374| 1 5/8
28| .146| 1.563| 1 7/8
32| .169| 1.752| 2 1/8
36| .169| 1.937| 2 3/8
40| .169| 2.185| 2 5/8

GT Connectors
crimp contacts and application tools
Machined from copper alloys and silver-plated for maximum corrosion resistance, with a minimum millivolt drop and a maximum current carrying capacity, the size 16 and 12 socket contacts are of the closed entry design. Crimp contacts are available for all MS insert arrangements and are identified with an Amphenol® proprietary number.
CRIMP CONTACTS

CRIMP CONTACT DATA

|

APPLICATION TOOLS

---|---

PART NUMBER

| **MATING SIZE| ****WIRE WELL SUFFIX| ****Crimp Tools| ****Positioner/ Die Set| ****Locator/ Color
PIN CONTACT| SOCKET CONTACT (split leaf)
SILVER| GOLD(“D”)| SILVER| GOLD(“D”)
10-40553| 10-597160-15D| 10-597109-161| 10-597109-16D| ** 16S| 16-18-20| Daniels AF8 or Equivalent| TH29-1 or Equivalent| Red
10-606014-40| 10-597160-40D| 10-597109-401| 10-597109-40D| 12-14
10-606014-221| 10-597160-19D| 10-597109-191| 10-597109-19D| 14-16
10-606014-291| 10-597160-34D| 10-597109-341| 10-597109-34D| 20-22
10-606014-46| 10-597160-46D| 10-597109-461| 10-597109-46D| 20-24
10-40557| 10-597160-16D| 10-597109-171| 10-597109-17D| 16| 16-18-20| Pin – Blue Socket – Green
10-606014-022| 10-597160-22D| 10-597109-221| 10-597109-22D| 12-14
10-606014-171| 10-597160-17D| 10-597109-141| 10-597109-14D| 14-16
10-606014-311| 10-597160-33D| 10-597109-331| 10-597109-33D| 20-22
10-606014-361| 10-597160-36D| 10-597109-361| 10-597109-36D| 20-24
10-606014-391| 10-597160-39D| 10-597109-391| 10-597109-39D| 24-26
10-606014-43| 10-597160-43D| 10-597109-431| 10-597109-43D| 20-26
10-606014-121| 10-597160-12D| 10-597109-131| 10-597109-13D| 12| 12-14| Green
10-606014-231| 10-597160-23D| 10-597109-231| 10-597109-23D| 8-10
10-606014-251| 10-597160-26D| 10-597109-261| 10-597109-26D| 10-12
10-606014-271| 10-597160-27D| 10-597109-271| 10-597109-27D| 14-16-18
10-606014-261| 10-597160-24D| 10-597109-241| 10-597109-24D| 18-20
10-606014-201| 10-597160-20D| 10-597109-201| 10-597109-20D| 20-22
10-40792| 10-597160-8D| 10-40793| 10-597109-8D| 8| 8| Pico 400BHD| Pico 414DA-8N| Pico Pin – 4025
Socket – 4026
10-606014-41| 10-597160-41D| 10-597109-411| 10-597109-41D| 6
10-606014-321| 10-597160-28D| 10-606015-321| 10-597109-28D| 10-12
10-606014-381| 10-597160-38D| 10-597109-381| 10-597109-38D| 12-14
10-40564| 10-597160-4D| 10-40565| 10-597109-4D| 4| 4| Pico 414DA- 4N| Pico 4043
10-606014-58| 10-597160-58D| 10-597109-581| 10-597109-58D| 6
10-606014-331| 10-597160-35D| 10-597109-351| 10-597109-35D| 8
10-606014-44| 10-597160-44D| 10-606015-441| 10-597109-44D| 10
10-606014-45| 10-597160-45D| 10-597109-451| 10-597109-45D| 16
10-581806-000| 10-597160-1D| 10-581808-000| 10-597159-1D| 0| 0| Pico 414DA-0N| Pico
Pin – 4042-1
Socket – 4042
10-606014-341| 10-597160-29D| 10-597109-291| 10-597109-29D| 0-2
10-606014-351| 10-597160-30D| 10-606015-351| 10-597109-30D| 4
10-597276-48| 10-597276-48D| 10-606015-48| 10-597109-48D| 2/0| 2/0| Pico 500| Pico 514DA2/ 0N| Pico Pin – 6490
Socket – 6491
10-597276-47| 10-597276-47D| 10-606015-47| 10-597109-47D| 4/0| 4/0| Pico 514DA4/ 0N

GT Connectors crimp contacts, cont.
CRIMP CONTACTS

Mating Size| Wire Barrel Size| Allowable Wire Size| Test Current Amps**
---|---|---|---
| | 16| 13
16 Short| 16| 18| 10
| | 20| 7.5
| | 22| 5
| | 16| 13
16 Long| 16| 18| 10
| | 20| 7.5
| | 22| 5
| | 12| 23
12| 12| 14| 17
| | 8| 46
8| 8| 10| 33
| | 4| 80
4| 4| 6| 60
| | 0| 150
0| 0| 2| 125

Contact ratings as stated are test ratings only. The connector may not withstand full rated current through all contacts continuously. Please note that the electrical data given is not an establishment of electrical safety factors. This is left entirely in the signer’s hands as he can best determine which peak voltage, switching surges, transients, etc. can be expected in a particular circuit.
Table I
MIL-SPEC CONTACT ARRANGEMENT SERVICE RATING**

**MS
Service Rating| Recommended Operating Voltage* at Sea Level| Effective Creepage Distance Nom.| ****Mechanical Spacing Nom.
---|---|---|---
DC| AC (RMS)**
Inst.| 250| 200| 1/16|
A| 700| 500| 1/8| 1/16
D| 1250| 900| 3/16| 1/8
E| 1750| 1250| 1/4| 3/16
B| 2450| 1750| 5/16| 1/4
C| 4200| 3000| 1| 5/16

The values listed in Table I represent operating values which include a generous safety factor. It may be necessary for some applications to exceed the operating voltages listed here. If this is necessary, designers will find Table II useful for determining the agree to which the recommended values of Table I can be exceeded.
Table II
ALTITUDE VOLTAGE DERATING CHART**

MS
Service Rating| Nominal Distance| Standard Sea Level Conditions| Pressure Altitude † 50,000 Feet| Pressure Altitude † 70,000 Feet
---|---|---|---|---
**Airspace| ****Creepage| Minimum Flashover Voltage AC (RMS)| ****Test Voltage AC (RMS)| Minimum Flashover Voltage AC (RMS)| ****Test Voltage AC (RMS)| Minimum Flashover Voltage AC (RMS)| ****Test Voltage AC (RMS)**
Inst.| 1/32| 1/16| 1400| 1000| 550| 400| 325| 260
A| 1/16| 1/8| 2800| 2000| 800| 600| 450| 360
D| 1/8| 3/16| 3600| 2800| 900| 675| 500| 400
E| 3/16| 1/4| 4500| 3500| 1000| 750| 550| 440
B| 1/4| 5/16| 5700| 4500| 1100| 825| 600| 480
C| 5/16| 1| 8500| 7000| 1300| 975| 700| 560

† Not corrected for changes in density due to variations in temperature
** No attempt has been made to recommend operating voltages. The designer must determine his own operating voltage by the application of a safety factor to the above derating chart to compensate for circuit transients, surges, etc.

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