Class 9421 Devices
© 1997 Square D All Rights Reserved
10 12/97
Class 9421 Type L Circuit Breaker Mechanisms
Type L door-mounted, variable-depth operating mechanisms feature heavy duty, all metal co nstruction
with trip indication. All can be padlocked in the “OFF” position when the enclosure door is open. Further ,
the handle assemblies can be lock ed “OFF” with up to three padlocks, which also locks the door closed.
(The 3" handle accepts one padlock.)
Complete Kits
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.
q Mounting depth measured from circuit breaker mounting surface (control panel) to outsid e of enclosure door in inches.
j Types LT1, LT4, LX1, and LX4 include an 8” handle rather than a 6” handle.
Component Par t s
Component parts kits are rated f or 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).
c Mounting depth measured from circuit breaker mounting surface (control panel) to outside of enclosure door in inches.
NEMA Type 3 and 4 Handle Assembliest
tDue to gasketing, NEMA Type 3 & 4 handle assemblies are NOT trip indicating.
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
Use With
Circuit Breaker
or Interrupter Type Number
of Poles Frame
Size (A) Type Mounting
Depthq
Min.-Max. Type Mounting
Depthq
Min.-Max. Type Mounting
Depthq
Min.-Max.
GJL 3 75, 100 LG1 51/2-101/4LG4 51/2-207/8LG3 51/2-207/8
FAL, FCL, FHL 2-3 100 LN1 51/2-107/16 LN4 51/2-21 LN3 51/2-21
KAL, KCL, KHL 2-3 250 LP1 61/4-113/16 LP4 61/4-213/4LP3 61/4-213/4
LAL, LHL, Q4L 2-3 400 LR1 65/16-107/8LR4 65/16-211/2
3" handles are not
recommended f or use with
these circuit breakers.
MEL, MXL 2-3 800 LT1j73/16-115/8LT4j73/16-221/4
MAL, MHL 2-3 1000 LT1j73/16-115/8LT4j73/16-221/4
NAL, NCL, NEL,
NXL 2-3 1200 LX1j81/4-123/4LX4j81/4-233/8
Use With
3" Handle
Assemblies
Type
1, 3R, 12
Std. 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
(Amps) Type Type Type Mounting
Depthc
Min.-Max. Type Mounting
Depthc
Min.-Max. Type
GJL 3 75
100 LH3 LH6 LG7 51/2-107/16 LS8 51/2-21 LS12
FAL, FCL, FHL 2-3 100 LH3 LH6 LF1 51/2-107/16 LS8 51/2-21 LS12
KAL, KCL, KHL 2-3 250 LH3 LH6 LK1 61/4-113/16 LS8 61/4-213/4LS12
LAL, LHL, Q4L 2-3 400 3" handles
are not rec-
ommended
for use with
these circuit
breakers.
LH6 LL1 65/16-107/8LS8 65/16-211/2LS10
MEL, MXL 2-3 800 LH8 LM1 73/16-115/8LS8 73/16-221/4LS10
MAL, MHL 2-3 1000 LH8 LM1 73/16-115/8LS8 73/16-221/4LS10
NAL, NCL, NEL,
NXL 2-3 1200 LH8 LX7 81/4-123/4LS8 81/4-233/8LS10
Use With Standard Handle Assem blies Special 3'' Version
Circuit Breaker
or
Interrupter Type
No.
of
Poles
Frame
Size
(Amps)
NEMA Type 3, 4
(Painted) NEMA T ype 3, 4, 4X
(Chrome Plated) NEMA Type 3, 4
(Painted) NEMA T ype 3, 4, 4X
(Chrome Plated)
Type Type Type Type
GJL 3 75 LH46 LC46 LH43 LC43
FAL, FCL, FHL 2-3 100 LH46 LC46 LH43 LC43
KAL, KCL, KHL 2-3 250 LH46 LC46 LH43 LC43
LAL, LHL, Q4L 2-3 400 LH46 LC46 3" handles are not
recommended for use
with these circuit breakers.
MEL, MXL 2-3 800 LH48 LC48
MAL, MHL 2-3 1000 LH48 LC48
NAL, NCL, NEL, NXL 2-3 1200 LH48 LC48
3” Handle
Assembly
Standard Handle
Assembly
Operating Mechanism
(includes lockout)
IEC-Style Handle
(f or use with
9421LG8, see page 11)
File E62922
CCN: DIHS2