LEVITON Q-921H Industrial Switches and Motor Controls Instructions
- June 3, 2024
- Leviton
Table of Contents
LEVITON Q-921H Industrial Switches and Motor Controls
OVERVIEW
Powerswitch® industrial grade AC Manual Motor Controllers provide safe, reliable control of a variety of motor loads. Suitable for use as motor disconnect*, these switches are available for both single-phase and three- phase applications, with a continuous current rating at voltages up to 600 VAC and maximum horsepower ratings of 30 hp. Metallic and non-metallic enclosures are available, including NEMA Type 1, Type 3R, and Type 4X, to suit a wide variety of applications.
- 30 A & 40 A only
Component Switches
30 A, 40 A, 60 A
ORDERING GUIDE
Switch Type
|
Rating
|
Poles
| AC Horsepower Rating (hp)|
Wiring
|
Toggle Type
|
Toggle Color
|
Cat No
---|---|---|---|---|---|---|---
120 V| 240 V| 480 V| 600 V
Manual Motor Controller Suitable as
Motor Disconnect
|
30 A
|
2-Pole (1Ø)
|
2
|
5
|
10
|
15
|
Back/Side
|
Standard
| Black| MS302-DS
White| MS302-DSW
Back/Side| Short| Black| MS302-DSS
3-Pole (3Ø)
|
3
|
7½
|
15
|
20
|
Back/Side
|
Standard
| Black| MS303-DS
White| MS303-DSW
Back/Side| Short| Black| MS303-DSS
40 A
| 2-Pole (1Ø)| 2| 5| 10| 15| Back/Side| Standard| Black| MS402-DS
3-Pole (3Ø)| 3| 7½| 15| 20| Back/Side| Standard| Black| MS403-DS
Manual Motor Controller
|
60 A
|
2-Pole (1Ø)
|
—
|
10
|
15
|
20
| Back| Standard| Black| MS602-BW
Front| Standard| Black| MS602-FW
3-Pole (3Ø)
|
—
|
10
|
25
|
30
| Back| Standard| Black| MS603-BW
Front| Standard| Black| MS603-FW
FEATURES
- All molded parts are thermoplastic to resist impact, chemicals, temperature, tracking and arcing
- Cam-driven mechanism enhances fast-make/slow-break
- Listed to UL 60947-4-1 (formerly UL 508)
- Silver-alloy contacts for maximum conductivity and service life
- 30 A and 40 A switches feature external clamps for back and side wiring; 60 A switches available in front-wire or back-wire versions
- Insulating barrier between terminals provide isolation between phases
- Nickel-plated brass mounting strap, terminal screw and external clamps for superior strength and corrosion resistance
- Oversized toggle provides positive actuation, even with gloved hand
- Short toggle verisons (DSS) available in 30 A and 40 A for when shorter depth is required
- Backed by a Limited Ten-Year Warranty
- 30 A standard toggle versions (DSW) available in white
Enclosed Switches
30 A, 40 A, 60 A
ORDERING GUIDE
Switch Type
|
Rating
|
Poles
| AC Horsepower Rating (hp)|
Toggle Type
|
Enclosure
|
Cat No
---|---|---|---|---|---|---
120 V| 240 V| 480 V| 600 V
Manual Motor Controller Suitable as
Motor Disconnect
|
30 A
|
2-Pole (1Ø)
|
2
|
5
|
10
|
15
| Standard| Type 1 Metal| N1302-DS
Pistol Grip| Type 3R Metal| N3302-DS
Pistol Grip| Type 4X Non-Metallic| MS4X-302‡
3-Pole (3Ø)
|
3
|
7½
|
15
|
20
| Standard| Type 1 Metal| N1303-DS
Standard| Type 1 Non-Metallic Cover| N1303-TDS
Pistol Grip| Type 3R Metal| N3303-DS
Pistol Grip| Type 4X Non-Metallic| MS4X-303‡
40 A
| 2-Pole (1Ø)| 2| 5| 10| 15| Pistol Grip| Type 4X Non-Metallic| MS4X-402‡
3-Pole (3Ø)| 3| 7½| 15| 20| Pistol Grip| Type 4X Non-Metallic| MS4X-403‡
Manual Motor Controller|
60 A
| 2-Pole (1Ø)| —| 10| 15| 20| Pistol Grip| Type 3R Metal| N3602
3-Pole (3Ø)| —| 10| 25| 30| Pistol Grip| Type 3R Metal| N3603
Safety Disconnect Switches
OVERVIEW
Powerswitch® safety disconnect switches are designed for superior performance
in food and beverage processing, manufacturing, marinas and shipyards, and OEM
applications. Available in both stainless steel as well as PBT enclosures
these devices are built to withstand the rigors of harsh environments,
addressing the needs for safety, washdown procedures, reduced downtime and
code compliance. All Powerswitch safety disconnect switches are backed by an
industry-leading 3-year warranty.
Stainless Steel Disconnect Switches
Slope Top 30/32 A, 60 A, Non-Fused Flat Top 30/32 A, 60 A, 80 A, 100 A, Non-
Fused
FEATURES
- Type 304 stainless steel resists heat, corrosion and abuse
- Watertight, dust-tight, submersible and suitable for high-pressure, high temperature washdown
- IP66, IP67, IP68 and IP69K
- UL 50E Type 3R, 4X, 12, 13
- Slope top versions feature a 15° slope towards wall, pushing water and debris away from door, handle, gasket and front of device (30/32 A and 60 A versions only)
- Overmold handle provides firm grip, durability and withstands washdown
- Handle accommodates 3 padlocks for OSHA compliant lockout/tagout
- Removable cover door makes installation and servicing simple and quick
- NSF Certified for hygiene requirements in food & beverage processing
- ¾” standoff from mounting surface allows for easy cleaning
ORDERING GUIDE
| | | | AC Horsepower Rating (hp)
---|---|---|---|---
Amp| Cat No| Description| | Single Phase| Three Phase
| | | | 120 VAC| 208 to
240 VAC
| 480 VAC| 600 VAC| 208 to
240 VAC
| 480 VAC| 600 VAC
30/32 A
| MDS3-ST| Slope Top, Non-Fused|
2
|
5
|
5
|
5
|
10
|
20
|
25
MDS3-AST
| Slope Top,
Non-Fused w/Aux. Contact AUXNO
MDS3-AX| Non-Fused|
2
|
5
|
5
|
5
|
10
|
20
|
25
MDS3-AC| Non-Fused w/Aux. Contact AUXNO
60 A
| MDS6-ST| Slope Top, Non-Fused|
2
|
10
|
20
|
20
|
20
|
40
|
40
MDS6-AST
| Slope Top,
Non-Fused w/Aux. Contact AUXNO
MDS6-AX| Non-Fused|
2
|
10
|
20
|
20
|
20
|
40
|
40
MDS6-AC| Non-Fused w/Aux. Contact AUXNO
80 A
| MDS8-AX| Non-Fused|
2
|
10
|
20
|
20
|
20
|
40
|
40
MDS8-AC| Non-Fused w/Aux. Contact AUXNO
| | | AC Horsepower Rating (hp)
Amp| Cat No| Description| Single Phase| Three Phase
120 VAC| 220 to 240 VAC| 277 V| 440 to 480 VAC| 550 to
600 VAC| 110 to 120 VAC| 220 to 240 VAC| 240 VAC| 440 to
480 VAC| 550 to 600 VAC
100 A
| MDS1-AX| Non-Fused|
7.5
|
20
|
25
|
30
|
30
|
15
|
40
|
30
|
60
|
50
MDS1-AC
| Non-Fused w/ Aux. Contact AUXNO
SAFETY DISCONNECT SWITCH ACCESSORIES APPEAR ON THE BACK COVER
Slope top versions feature a 15° slope towards wall, pushing water and debris
away from door, handle, gasket and front of device (30/32 A and 60 A versions
only)
All Powerswitch safety disconnect switches from Leviton are certified to NSF International hygiene requirements for food & beverage processing to help ensure public health and safety. Manufacturers, regulators and consumers look to NSF International for the development of public health standards and certification programs that help protect the world’s food, water, consumer products and environment.
Non-Metallic Disconnect Switches
30/32 A, 60 A, 100 A, Fused & Non-Fused
FEATURES
- PBT enclosure resists impact, abuse and corrosion
- Watertight, dust-tight, submersible and suitable for high-pressure, high-temperature washdown
- IP66, IP67, IP68, IP69 and IP69K
- UL 50E Type 3R, 4, 4X, 6P, 12, 13
- Curve top versions push water and debris away from door, handle, gasket and front of device (30/32 A only)
- Overmold handle provides firm grip,durability and withstands washdown
- Handle accommodates 3 padlocks for OSHA compliant lockout/tagout
- NSF Certified for hygiene requirements in food & beverage processing
- Operating temperature ranges from -40°C to 75°C (-40°C to 65°C for Inform units)
- Captive, triple head cover screws constructed of stainless steel
ORDERING GUIDE
| | | AC Horsepower Rating (hp)
---|---|---|---
Amp| Cat No| Description| Single Phase| Three Phase
110 VAC| 208 to
240 VAC
| 480 VAC| 600 VAC| 208 to
240 VAC
| 480 VAC| 600 VAC
30/32 A
| LDS30-AX| Non-Fused|
2
|
5
|
5
|
5
|
10
|
20
|
25
LDS30-AC| Non-Fused w/Aux. Contact AUXNO
LDS30-FAX| Fused| 2| 3| 3| 3| 7.5| 15| 20
LDS30-AXC| Non-Fused w/ Inform, Remote Monitoring (Wi-Fi)|
2
|
5
|
5
|
5
|
10
|
20
|
25
LDS30-ACC
| Non-Fused w/ Inform, Remote Monitoring (Wi-Fi) and w/Aux. Contact AUXNO
LDS30-AXS| Non-Fused w/ Inform|
2
|
5
|
5
|
5
|
10
|
20
|
25
LDS30-ACS| Non-Fused w/ Inform and w/Aux. Contact AUXNO
LDS30-0MB| Non-Fused w/ Inform, Remote Monitoring (Modbus RTU)|
2
|
5
|
5
|
5
|
10
|
20
|
25
LDS30-AMB
| Non-Fused w/ Inform, Remote Monitoring (Modbus RTU) and w/Aux. Contact AUXNO
LDS30-CT| Curve Top, Non-Fused| 2| 5| 5| 5| 10| 20| 25
LDS30-ACT| Curve Top, Non-Fused w/ Aux. Contact AUXNO| 2| 5| 5| 5| 10| 20| 25
LDS30-CTS| Non-Fused w/ Inform| 2| 5| 5| 5| 10| 20| 25
LDS30-CTC| Non-Fused w/ Inform, Remote Monitoring (Wi-Fi)| 2| 5| 5| 5| 10| 20|
25
LDS30-CTM| Non-Fused w/ Inform, Remote Monitoring (Modbus RTU)|
2
|
5
|
5
|
5
|
10
|
20
|
25
60 A
| LDS60-AX| Non-Fused|
2
|
10
|
10
|
10
|
20
|
40
|
40
LDS60-AC| Non-Fused w/Aux. Contact AUXNO
LDS60-FAX| Fused| 2| 7.5| 7.5| 7.5| 15| 30| 50
100 A
| LDS10-AX| Non-Fused|
7.5
|
20
|
30
|
30
|
40
|
60
|
50
LDS10-AC| Non-Fused w/Aux. Contact AUXNO
LDS10-FAX| Fused| 5| 15| 15| 15| 30| 60| 75
SAFETY DISCONNECT SWITCH ACCESSORIES APPEAR ON BACK COVER
Safety Disconnect Switch Accessories
| Cat No | Description |
|---|---|
| LDS30-RCS | 30/32 A Non-Fused Replacement Cover – Inform |
| LDS30-RCC | 30/32A Non-Fused Replacement Cover – Inform, Remote Monitoring (Wi- |
Fi)
LDS30-RCM| 30/32A Non-Fused Replacement Cover – Inform, Remote Monitoring
(Modbus RTU)
AUXNO| Rated 10 A 600 V, For Use With 30/32/60/80 A Devices Non-Fused Aux
Contact – Normally Open
AUXNC-NF| Rated 10 A 600 V, For Use With 30/32/60/80 A Devices Non-Fused Aux
Contact – Normally Closed
AUXNO-NF1| Rated 10 A 600 V, For Use With 100 A Devices Non-Fused Aux Contact
– Early Break
AUXNO-F1| Rated 10 A 600 V, For Use With 30/32 A Devices Fused Aux Contact –
Normally Open
AUXNC-F1| Rated 10 A 600 V, For Use With 30/32 A Devices Fused Aux Contact –
Normally Closed
AUXNO-F2| Rated 10 A 600 V, For Use With 60/100 A Devices Fused Aux Contact –
Normally Open
AUXNC-F2| Rated 10 A 600 V, For Use With 60/100 A Devices Fused Aux Contact –
Normally Closed
30ASW| 30/32 A Non-Fused Replacement Switch
6080A-NF| 60/80 A Non-Fused Replacement Switch
100SW-NF| 100 A Non-Fused Replacement Switch
30ASW-F| 30/32 A Fused Replacement Switch
60ASW-F| 60 A Fused Replacement Switch
100SW-F| 100 A Fused Replacement Switch
Cat No| Description
---|---
HUB-34| Watertight Conduit Hub, Die-Cast Zinc, ¾”
HUB-100| Watertight Conduit Hub, Die-Cast Zinc, 1″
HUB-114| Watertight Conduit Hub, Die-Cast Zinc, 1 ¼”
HUB-112| Watertight Conduit Hub, Die-Cast Zinc, 1 ½”
HUB-200| Watertight Conduit Hub, Die-Cast Zinc, 2″
SSHUB| Watertight Conduit Hub, Stainless Steel, ¾”
MOUNT-LDS| Mounting Feet for
Non-Metallic Disconnects
HNDLE| Replacement Handle
NOTE: Separate mounting bracket needed for attaching fused auxiliary contacts to switch. Contact Customer Service for availability.
Does your facility use
Mechanical Interlocks?
ALSO AVAILABLE WITH INFORM!
Real-time diagnostics
help to reduce
unplanned downtime
In addition to local LED indicators, remote monitoring allows for 24/7 access to device data, such as:
- Liquid accumulation
- Enclosure temperature and humidity
- Line- and load-side voltage values
- Ground continuity
- And more
Visit our Website at:
www.leviton.com/powerswitch
email: industrial@leviton.com
Q-921H
Leviton Manufacturing Co., Inc.
201 N Service Rd, Melville, NY 11747
Telephone: 1-800-323-8920 • FAX:
1-800-832-9538
Tech Line: 1-800-824-3005 (M-F 8 AM-10
PM; Sat 9 AM-7 PM; Sun 9 AM-5 PM)
© 2022 Leviton Manufacturing Co., Inc. All rights reserved.
References
Read User Manual Online (PDF format)
Read User Manual Online (PDF format) >>