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Square D > On-line Catalog > Products > Miniature and Molded Case Circuit Breakers > Automatic Switches: Automatic Molded Case Switches

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Automatic Switches

 

Class 600 / Refer to Catalog 0612CT0101

Automatic molded case switches open instantaneously at a factory preset magnetic trip point, calibrated to protect only the molded case switch itself, when it is subjected to high fault currents. The trip point is nonadjustable and provides no overload or low level fault protection.

Molded case switches open when the handle is switched to the OFF position or in response to an auxiliary tripping device such as a shunt trip.

All molded case switches will accept the same lugs and accessories as equivalent thermal-magnetic circuit breakers, with the exception of Q-frame switches which do not have electrical accessories available.
Table 7.70:
H-frame and J-frame PowerPact® Automatic Molded Case Switches, 600 Vac
Ampere Rating
14 AWG–3/0 AWG Al/Cu
4–4/0 AWG Al/Cu
3/0 AWG–350 kcmil Al/Cu
14 AWG–3/0 AWG Al/Cu
4–4/0 AWG Al/Cu
3/0 AWG–350 kcmil Al/Cu
a
True 2P device. Others are a 2P in a 3P module.
Table 7.71:
D-frame (600 Vac) and Q-frame (240 Vac) PowerPact® Automatic Molded Case Switches
Circuit Breaker
Ampere Rating
2 AWG–500 kcmil Al or 2 AWG–600 kcmil Cu
(2) 2/0 AWG–500 kcmil Al or (2) 2/0 AWG–350 kcmil Cu
4 AWG–300 kcmil
b
Withstand rating of 10 kA at 240 Vac.
Table 7.72:
P-frame and R-frame PowerPact® Automatic Molded Case Switchese, 600 Vac
Ampere Rating
(3) 3/0 AWG–500 kcmil
Al or Cu
(4) 3/0 AWG–500 kcmil
Al or Cu
(3) 3/0 AWG–500 kcmil
Al or Cu
(4) 3/0 AWG–500 kcmil
Al or Cu