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Square D > On-line Catalog >
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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: 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
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
Table 7.72: 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