SQUARE D 8702SEO1V07 NEMA Contactor Instructions
- June 16, 2024
- SQUARE D
Table of Contents
Instruction Bulletin
Replaces: 30072-013-01D 3/00
AC Magnetic Contactors and Starters
| Class | Type | Series | Size | Poles (P) |
|---|---|---|---|---|
| 8502 & 8536 | SE | A | 3 | 2 & 3 |
INTRODUCTION
This bulletin provides assembly, modification, and parts ordering instructions.
Figure 1: Contactor and Starter Assembly
DANGER
HAZARDOUS VOLTAGE
Disconnect all power before working on equipment.
Failure to follow this instruction will result in death or serious injury.
AC Magnetic Contactors and Starters
AUXILIARY CONTACTS
All contactors and starters feature a normally open (N.O.) holding circuit
contact. N.O. or normally closed (N.C.) auxiliary contacts can be added in the
field. Table 5 lists Class and Type.
Bulletin 30072-013-21 and the Square DDigest contain application information.
COVER-MOUNTED CONTROL UNITS
NEMA Type 1 general purpose enclosures with slip-on or hinged covers contain
knockouts for field addition of the kits listed in Table 1.
Table 1 Field Modification Kits, Class 9999
| Kit | Type | Form |
|---|---|---|
| Push button, Start-Stop | SA2 | A |
| Push button, On-Off | SA10 | A3 ado |
| Selector switch, Hand-Off-Auto | SC2 | C -auto |
| Selector switch, On-Off | SC22 | C6 pagado |
| Red pilot light (slip-on cover) | SP4R | P1 ;lizante) |
| Red pilot light (hinged cover) | SP14R | P1 sagrada) |
OVERLOAD RELAYS
A melting alloy overload relay is standard and incorporates one or three
thermal units. Its contact unit (item 7 in Figure 1) is available with a N.O.
or N.C. isolated alarm contact, in addition to the standard N.C. contact. The
contact unit with alarm circuit contacts is fieldinstallable (see Table 5).
Ambient-temperature compensated bimetallic overload relays, incorporating
three thermal units, are available as an optional feature (Form Y59).
Overload relays are not field-repairable. Do not disassemble them.
TERMINALS
Use only copper wire on device power and control terminals. Box lugs are suitable for wire sizes 14–1/0 AWG (2.5 –50 mm²). Pressure wire controlterminals are suitable for wire sizes 16–12 AWG (1.5–4 mm²), solid or stranded.
INSPECTING AND REPLACING CONTACTS
Discoloration and slight pitting do not harm contacts. Do not file contacts;
this wastes contact material. Replace contacts (item 5 in Table 5) only when
worn thin.
To inspect or replace contacts, disconnect all power. Do not remove any
wiring. Loosen the four screws (D) holding the contact actuator to the contact
block. Lift the contact actuator to expose the contacts.
MANUAL OPERATION
WARNING
UNINTENDED EQUIPMENT OPERATION
Disconnect all power before manually operating the equipment to avoid contact
arcing and unexpected load energization.
Failure to follow this instruction can result in death, serious injury, or
equipment damage.
Manually operate the contactor or starter with a screwdriver by pushing the step on the outside of the contact carrier.
COIL REPLACEMENT
To remove the coil, loosen the two captive cover screws (A). Disconnect the
wires from the coil terminals and remove the cover. Loosen the two screws (B)
holding the magnet in place.
Remove the coil and magnet. Manually operate the contact carrier and remove
the armature. Separate the coil from the magnet.
To replace the coil, assemble the magnet, coil, and armature, then insert the
complete unit. Approximately 3/8 in. of space should exist between the top,
outside surface of the coil and the inside surface of the magnet. If this
space does not exist, the magnet may be loose and out of place. To properly
position the magnet, grasp the coil firmly and slide it down toward the
armature until the magnet falls into place.
Before installing the cover, manually operate the device as described in
“Manual Operation” to ensure that all parts function properly.
ASSEMBLY
Figure 1 illustrates the contactor or starter assembly. Table 2 and the
deviceinstructions provide factory recommended torques for mechanical,
electrical, and pressure wire connections. Use these torques to ensure proper
device operation.
SHORT-CIRCUIT PROTECTION
Provide branch-circuit overcurrent protection for starters, referring to
instructions supplied with the thermal unit selection table. Provide
branchcircuit overcurrent protection for contactors (Class 8502 or 8702) in
accordance with the National Electrical Code
(NEC) and local electrical codes. Do not exceed the maximum protectivedevice
ratings listed in Table 3.
Table 2 Factory-Recommended Tightening Torques
| Item Art. | Description | Torque |
|---|---|---|
| lb-in | N.m | |
| A | Cover screw (2 per cover) | 24-28 |
| B | Screw post (2 per magnet) | 65-75 |
| C | Coil terminal pressure wire connector (2 per coil) | [1] |
| D | Power plant screw (4 per device) | 40-45 |
| E | Auxiliary contact pressure wire connector (2 per contact) | [1] |
| F | Stationary contact fastener (2 per pole) | 44-50 |
| G | Lug screw (2 per pole) | [I] |
| H | Lug retaining screw (2 per pole) | 44-50 |
| Control circuit pressure wire connector (1 per pole) | [1] | [1] |
| K | Auxiliary contact fastening screw (1 per contact) | 13-16 |
| M | Overload relay fastening screw (3 per overload block) | 24-28 |
| N | Overload switch module fastening screw (1 per module) | 9-12 |
| 0 | Switch module pressure wire connector (2 per module standard; 4 per module | |
| with alarm circuit contact) | [1] | [1] |
| P | Overload-to-contactor fastening screw (3 per device) | 44-50 |
| 0 | Thermal unit fastening screw (2 per pole) | 90-100 |
| R | Lug retaining screw | 44-50 |
[1] See instructions supplied with the device.
Provide overcurrent protection for control circuits in accordance with the NEC and/or other applicable electrical codes. For applications requiring compliance with I.E.C. 947-5-1, use only Class CC fuses or better, 30 A maximum.
Table 3 Maximum Ampere Ratings
Maximum Voltage| Class K5, RK5 or RK1 Fuse [1]| Class J or T
Fuse| Inverse-Time Circuit Breaker
---|---|---|---
600 V~| 100 A| 200 A| 125 A
250 V~| 125 A| 200 A| 125 A
[1] Time delay fuse may be required.
DISTANT CONTROL
Depending upon the voltage, wire size, and number of control wires used, series impedance or shunt capacitance may limit the maximum distance of the wire run for remotely operated contactors and starters. If distances to start or stop stations exceed those listed in Table 4, analyze the wire-run configuration and materials. For further information, request data bulletin M-379 from D-FAX (document #1188), the Square D website (www.squared.com)), or your local Square D field office.
Table 4 Maximum Control Distance
| Coil Voltage @ 60 Hz | Copper Wire |
|---|---|
| 14 AWG (2,08 mm2) | 10 AWG (5,26 mm2) |
| ft | m |
| 120 V- (2/3-wire) (2/3 hilos) (2/3 fils) | 360 |
| 240 V- (2-wire) (2 hilos) (2 fils) | 1400 |
| 240 V- (3-wire) (3 hilos) (3 fils) | 990 |
| 480 V- (2-wire) (2 hilos) (2 fils) | 495 |
| 480V- (3-wire) (3 hilos) (3 fils) | 245 |
ORDERING INSTRUCTIONS
Specify the quantity, the part number or class and type, and the part description, giving complete nameplate data of the device (e.g., one armature and magnet kit 31074-931-50 for a Class 8536 Type SEO1, Series A starter).
Table 5: Parts List
| Item Art | Description | Part Number | Qty. |
|---|---|---|---|
| 2P | 3P | ||
| 1 II) | Armature and magnet kit | 31074-931-50 | 1 |
| 2 | Coil | See Table 6 | 1 |
| 3 | Auxiliary contact | ||
| 1 N.O. 1 N.C. 1 N.O. and 1 N.C. | Class 9999 |
Type SX6
Type SX7
Type SX8| —
—
—| —
—
—
4| Holding circuit contact 1 N.O.| Class 9999
Type SX6| 1| 1
5| Contact kit| Class 9998
Type SL6
Type SL7| 1
(4)
141| 1
6
612)| Melting alloy overload relay assembly (includes item 7) 1 thermal unit
3 thermal units
Bimetallic overload relay, Form Y59-3 thermal units| Class 9065
Type SD011
Type SD012
26005.11000| 1
1
(4)| —
1
3
7
7 (2)| Melting alloy overload contact unit
Melting alloy overload contact unit w/ alarm circuit
N.O. alarm contact
N.C. alarm contact| Class 9998
Type SO1
Class 9999
Type SO4
Type SO5| 1
—
—| 1
—
—
8| Reset bar for melting alloy overload relay| 31075.008-01| 1| 1
9| Housing-barrier assembly (includes item 10)| 31074-112-51| 1| 1
10| Drop-out pad| 31091-157-01| 2| 2
11| Cover only (nameplate not included)| 31074-054-01| 1| 1
A| Cover screw| 21916.16281| 2| 2
B| Screw post| 31074-048-50| 2| 2
C| Coil terminal pressure wire connector| 31051-007-50| 2| 2
G| Lug assembly| 25050.94000| 4| 6
H (3)| Lug retaining screw (5/16-18 x 518)| 21915.20200| 4| 6
K| Auxiliary contact fastening screw| 21918-14161| —| —
M| Overload relay fastening screw| 21911-16120| 3| 3
0| Switch module pressure wire connector| 21910.12095| —| —
P| Overload-to-contactor fastening screw (5/16.18 x 1/2)| 21911-20160| 2| 3
0| Thermal unit fastening screw (5/16-18 x 7/8)| 21943-22281| 4| 6
R| Lug retaining screw (1/4-20 x 7/16)| 21915.20140| 2| 3
[1] When ordering the armature and magnet kit (31074-931-50) for a contactor
orstarter that contains an armature assembly (item 1) incorporating two rubber
bumpers (item 1a), order a housing-barrier assembly (item 9) for installation
on the contactor or starter.
[2] Not shown.
[3] Used on the line and load sides of a contactor; used on the line side only
of a starter.
[4] Not available.
The complete coil part number consists of the prefix followed by the suffix (e.g., for 120 V 60 Hz coil, select 31074-400-38). When ordering replacement coils, give the part number, voltage, and frequency of the coil being replaced.
Table 6 : Magnet Coil Part Numbers
| Coil Prefix | Hz | Coil Suffix | VA |
|---|
24
V∼| 110 V∼| 120 V-| 120/
240
V∼| 208 V∼| 220 V∼| 240 V∼| 240/
480
V∼| 277 V∼| 380 V∼| 440 V∼| 480 V∼| 550 V∼| 600 V∼| Inrush| Sealed
31074-400| 60| 16| Use
120 V∼| 38| [H]| 44| Use
240 V∼| 47| [i]| 49| 53| Use
480 V∼| 57| Use
600 V∼| 60| 700| 46
50| 17| 38| 39| [2]| N/A| 47| 48| [2]| N/A| 54| 57| 58| 60| 61| 678| 47
[1] Dual voltage coil: Order 120/240 V 60 Hz as 31074-402-02. Order 240/480 V
60 Hz as 31074-402-04.
[2] Consult the local Square D sales office.
Electrical equipment should be serviced only by qualified personnel. No responsibility is assumed by Schneider Electric for any consequences arising out of the use of this material. This document is not intended as an instruction manual for untrained persons.
Square D Company
8001 Highway 64 East
Knightdale, NC 27545
1-888-SquareD (1-888-778-2733)
www.SquareD.com
© 1998–2002 Schneider Electric All Rights Reserved
California Proposition 65 Warning—Lead and Lead Compounds
WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov.
All trademarks are the property of Schneider Electric SE, its subsidiaries,
and affiliated companies.
Schneider Electric USA, Inc.
800 Federal Street
Andover, MA 01810 USA
888-778-2733
www.schneider-electric.us
References
- P65Warnings.ca.gov
- Schneider Electric Canada | Global Specialist in Energy Management and Automation
- Schneider Electric Mexico | Servicios de Renovación y Retrofit de Schneider Electric
- Square D | Schneider Electric USA
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