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Flange Mounted, Variable Depth
Disconnect Switch Accessories
Class 9422 / Refer to Catalog 9420CT9701
Variable-Depth Mechanisms
Designed for installation in custom built control enclosures where main or branch circuit
protective devices are required. All circuit breaker operating mechanisms are suitable for
either right- or left-hand flange mounting, convertible on the job.
Table 15.47: Variable-Depth Mechanisms for Use with Square D™ Circuit Breakers and Schneider Electric™ (formerly Merlin Gerin™)
Circuit Breakers
Use With
Operating Mechanism
Circuit Breaker
Frame Size
No. of
Poles
Frame Size
A
Variable-Depth
Mounting. Range [1]
(in.)
Operating Mechanism Only—
Does Not Include Handle
Mechanism
Operating Mechanism and Handle Mechanism
Includes Type A1
Handle Mechanism
Includes Type A2
Handle Mechanism
Type Type Type
Square D Circuit Breakers
GJL 3 100 6.00–17.75 RG1 ARG11 ARG21
FAL, FHL
2–3 100 5.38–17.75 RN1 ARN11 ARN21
KAL, KHL
2–3 250 6.38–17.88 RP1 ARP11 ARP21
LAL [2], LHL [2], Q4L
2–3 400 7.44–18.25 RR1 ARR11 ARR21
MEL, MXL
2–3 800 9.00–18.38 RT1 ART11 ART21
MAL, MHL
2–3 1200 9.00–18.38 RT1 ART11 ART21
NAL, NCL, NEL, NXL
2–3 1200 11.00–18.37 RX1 — —
Table 15.48: Electrical Interlocks—Class 9999
Description
Class
Type
Single Pole, Double Throw
Double Pole, Double Throw
9999
9999
R26 [3]
R27 [3]
Table 15.49: Dimensions
Circuit Breaker
Frame Size
Type
Width
(A)
Height
(B)
Distance to Enclosure Flange [4]
(C)
Bracket
Depth
(D)
Minimum Maximum
in. mm in. mm in. mm in. mm in. mm
GJL RG1 5.00 127 4.75 121 6.00 152 17.75 451 4.00 102
FAL, FHL
RN1 6.75 171 8.50 216 5.51 140 17.75 451 4.26 108
KAL, KHL
RP1 7.13 181 10.13 257 6.51 165 17.88 454 4.94 125
LAL [2], LHL [2], Q4L
RR1 10.19 259 11.00 279 7.44 189 18.25 464 6.00 152
MEL, MXL
RT1 13.38 340 14.00 356 9.00 229 18.38 467 9.69 246
MAL, MHL[5]
RT1 13.38 340 14.00 356 9.00 229 18.38 467 9.69 246
NAL, NCL, NEL, NXL
RX1 19.63 499 13.50 343 11.00 279 18.37 467 9.00 229
Minimum to wall or barrier.
Right- or left-hand mounting
to ensure adequate wire
bending space to lug
surface when maximum
wire size is used.
Refer to NEC Article 430-10.
C
L
R.H. Handle
C
L L.H. Handle
A
B
D
C = Distance from Outside of
Flange to Circuit Breaker
Mounting Surface
Enclosure Flange
Enclosure Door
15
OPERATING MECHANISMS AND
DISCONNECT SWITCHES
[1] Class 9422 Type R2 extends the mounting depth by 7 in.
[2] These operating mechanisms cannot be used with any LA/LH circuit breakers with an MB or MT suffix.
[3] Not for use with the GJL operating mechanism.
[4] 9422R2 extends the dimension by 7 in. Two are required.
[5] The minimum mounting depth when using MAL or MHL circuit breakers can be decreased to 7.63 in. by using the Class 9422 Type RT1B conversion kit.