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Square D > On-line Catalog > Products > Operator Mechanisms and Disconnect Switches > Door-Mounted Operating Mechanisms for Square D Circuit Breakers: Class 9421

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NEMA Style Disconnect Switches

Door-Mounted Operating Mechanisms for Square D Circuit Breakers

Class 9421 / Refer to Catalog 9420CT9701

Type L Circuit Breaker Mechanisms

Type L door mounted, variable depth operating mechanisms feature heavy duty, all metal construction with trip indication. All can be padlocked in the “OFF” position when the enclosure door is open. Further, the handle assemblies can be locked “OFF” with up to three padlocks, which also locks the door closed. (The 3" handle accepts one padlock.)

Complete kits are rated for NEMA Type 1, 3R and 12 enclosures, and a door-drilling template is supplied to ease installation. They include a handle assembly, operating mechanism, and shaft assembly
Table 8.45:
Complete Kit
Does Not Include Circuit Breaker
Includes:
Operating Mechanism
Standard 6" Handle
Standard Shaft Kit
Includes:
Operating Mechanism
Standard 6" Handle
Long Shaft Kit
Includes:
Operating Mechanism
Short 3" Handle
Long Shaft Kit
Circuit Breaker
or Interrupter
Type
Number
of
Poles
Frame
Size
(A)
Mounting
Deptha
Min.-Max.
Mounting
Deptha
Min.-Max.
Mounting
Deptha
Min.-Max.
5-1/2—10-1/4
5-1/2—20-7/8
5-1/2—20-7/8
2–3
93.
5-1/2—10-7/16
105.
5-1/2—21
132.
5-1/2—21
2–3
114.
6-1/4—11-3/16
126.
6-1/4—21-3/4
153.
6-1/4—21-3/4
2–3
5-1/2—10-3/4
5-1/2—21-3/8
LALc, LHLc, Q4L
2–3
161.
6-5/16—10-7/8
170.
6-5/16—21-1/2
3" handles are not recommended
for use with these circuit breakers.
2–3
161.
7-3/16—11-5/8
170.
7-3/16—22-1/4
2–3
161.
7-3/16—11-5/8
170.
7-3/16—22-1/4
2–3
161.
8-1/4—12-3/4
170.
8-1/4—23-3/8
7-3/16—11-5/8
7-3/16—22-1/4
Component parts kits are rated for NEMA Type 1, 3, 3R, 4, 4X, and 12 enclosures. All handle assemblies are painted (the handle is flat black and the base ring is silver.)
Table 8.46:
3" Handle
Assemblies
Type 1, 3R, 12
Standard Handle
Assemblies
Type 1, 3R, 12
Operating
Mechanism
Includes Lockout
Standard Shaft
(Support Bracket Not Required)
Long Shaft
(Support Bracket Included)
Circuit Breaker
or Interrupter Type
No.
of
Poles
Frame
Size
(A)
Mounting
Deptha
Min. - Max.
Mounting
Deptha
Min. - Max.
5-1/2—10-7/16
5-1/2—21
2–3
60.
33.30
47.60
5-1/2—10-7/16
14.30
5-1/2—21
23.70
2–3
60.
33.30
70.00
6-1/4—11-3/16
14.30
6-1/4—21-3/4
23.70
2–3
60.
5-1/2—10-1/4
5-1/2—21-3/8
LALc, LHLc, Q4L
2–3
3" handles
are not recommended for use with these circuit breakers.
33.30
113.00
6-5/16—10-7/8
14.30
6-5/16—21-1/2
23.70