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WL Circuit Breaker selection and application guide
Low Voltage Insulated Case Breaker Cradles
UL 489 Listed catalog number
Cradle catalog number
1 G G 1 2 3 4 5 6 7 8 9 10 11 12 13 14
Group Interrupt rating (kA) Frame Frame size
240VAC Max ampere
480VAC 600VAC rating (A) I II III
S 65 65 800 X S 1 3 0 8
S 65 65 800 X S 2 3 0 8
S 65 65 1200 X S 1 3 1 2
S 65 65 1200 X S 2 3 1 2
S 65 65 1600 X S 1 3 1 6
S 65 65 1600 X S 2 3 1 6
S 65 65 2000 X S 1 3 2 0
S 65 65 2000 X S 2 3 2 0
L 100 65 800 X L 1 3 0 8
L 100 85 800 X L 2 3 0 8
L 100 65 1200 X L 1 3 1 2
L 100 85 1200 X L 2 3 1 2
L 100 65 1600 X L 1 3 1 6
L 100 85 1600 X L 2 3 1 6
L 100 65 2000 X L 1 3 2 0
L 100 85 2000 X L 2 3 2 0
L 100 85 2500 X L 2 3 2 5
L 100 85 3000 X L 2 3 3 0
L 100 85 4000 X L 3 3 4 0
L 100 85 5000 X L 3 3 5 0
C 150 100 800 X C 2 3 0 8
C 150 100 1200 X C 2 3 1 2
C 150 100 1600 X C 2 3 1 6
C 150 100 2000 X C 2 3 2 0
C 150 100 2500 X C 2 3 2 5
C 150 100 3000 X C 2 3 3 0
C 150 100 4000 X C 3 3 4 0
C 150 100 5000 X C 3 3 5 0
Type of secondary terminal connection
For breakers:
Screw clamp terminals A
Spring clamp terminals B
Ring terminals C
Screw clamp terminals (low profile, non-partable design) L
For switches (non-automatic):
Screw clamp terminals G
Spring clamp terminals H
Ring terminals J
Screw clamp terminals (low profile non-partable design) N
Breaker position contacts (TOC)
Breaker position signaling switch in the following configurations
None X
1-Connected, 1-Test –1-Disconnected Form C 1
3-Connected, 2-Test –1-Disconnected Form C 3
6-Connected, Form C 6
Cradle mounted locks
None X
Lock breaker in OPEN position (Kirk lock) A
Lock breaker in OPEN position (Superior lock) B
Double-key lock breaker in OPEN position (Kirk lock) C
Double-key lock breaker in OPEN position (Superior lock) D
Provision only - Lock breaker in OPEN position E
Provision only - Double-key lock breaker in OPEN position F
Cradle mounted shutters
None X
Isolation Shutter F
Interrupting rating, frame size, and frame rating
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