Siemens 3VA1132-5EF32-0CA0 — SENTRON MCCB, line protection, 32 A, 187 kA
3-pole molded case circuit breaker, SENTRON series, line protection, 32 A continuous current Iu, 800 V insulation voltage Ui. Breaking capacity hits 187 kA at 240 V and 121 kA at 415 V — that class of interrupting rating means it can ride through high-fault utility feeds without needing an upstream current-limiting fuse, saving panel space and coordination work. At 55 °C the rating starts to step down: 30.72 A at 55 °C, 30.08 A at 60 °C, 29.44 A at 65 °C, and 28.8 A at 70 °C — so an enclosure hitting 60 °C ambient still carries 30 A without nuisance tripping.
Integration & mounting
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — fits standard MCCB panel cut-outs for 160 A frame size; the IP40 front rating means it's suited for enclosed distribution boards where dust ingress is controlled. The breaker includes an undervoltage release (UVR) as the auxiliary release — wired into the safety circuit, it trips the breaker on loss of control voltage, meeting machine-guarding stop requirements without a separate shunt-trip module.