Motor Protection Circuit Breaker, 32 A Frame
The Siemens 3RV2031-4EA15 is a SIRIUS motor protection circuit breaker designed for motor protection, with a rated current of 32 A at 480 V and 600 V. Its Class 10 trip characteristic means it disconnects within 10 seconds at 7.2× rated current, matching the thermal curve of standard induction motors during locked-rotor starts.
Breaking Capacity and Short-Circuit Coordination
Rated breaking capacity reaches 100 kA at 240 V, 30 kA at 400 V, and 2 kA at 690 V — the 30 kA at 400 V covers most industrial panel fault levels without needing an upstream current-limiting fuse. Phase failure detection is built in, so the breaker trips on a lost phase before the motor single-phases to failure.
Mounting and Panel Fit
Mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 60715, in any orientation — the 55 mm width and 149 mm depth fit standard motor control center buckets. Auxiliary contact ratings: 1 A at 24 V, 0.5 A at 230 V, and 0.15 A at 60 V — enough for PLC digital inputs or contactor coils in the same panel.
Sourcing and Lifecycle
Sourced and quoted to order against the BOM quantity through independent distribution; availability and current pricing confirmed at RFQ.