The Siemens 3VA1132-6GF42-0AA0 is a 4-pole molded case circuit breaker (MCCB) from the 3VA IEC frame 160 family, rated for line protection with a TM240 thermal-magnetic trip unit. Breaking capacity is 70 kA at 415 V (breaking capacity class H), so it handles high fault currents common in industrial distribution without cascading upstream. Overload protection (Ir) is adjustable from 22 A to 32 A, and short-circuit protection (Ii) from 5 to 10 times In, giving the commissioning engineer flexibility to coordinate with downstream feeders.
Protection settings and neutral conductor handling
The TM240 trip unit is set for a nominal current In of 32 A. Overload pickup Ir spans 22 A to 32 A; short-circuit magnetic pickup Ii spans 5 to 10 x In. Neutral conductor protection is set at 100%, meaning the neutral pole tracks the phase protection — important for 4-wire systems where neutral overcurrent is a concern. The part includes a keeper kit for the neutral pole, so the neutral remains connected even when the breaker is withdrawn or racked out.
The 3VA1132-6GF42-0AA0 mounts in standard switchboard or enclosure cutouts for IEC frame 160 breakers. Packaging dimensions are 150 x 119 x 116 mm. The 4-pole configuration with 100% neutral protection suits TN-S or TN-C-S systems where neutral isolation and protection are required. Product group code is 5375; group code is P360 — these are internal Siemens classification fields used for ordering and documentation traceability.