The Siemens SENTRON 3VA1125-3EF32-0CC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 25 A continuously at 40 °C and derating to 23 A at 70 °C. Its interrupting capacity hits 75.6 kA at 240 V and still holds 11.9 kA at 690 V — enough headroom for most industrial distribution panels without cascading upstream.
At 415 V it interrupts 52.5 kA, at 440 V it's 32 kA, and at 500 V it drops to 11.9 kA — the same figure holds at 690 V. That curve tells you where this breaker sits in a selective coordination study: it clears high-fault scenarios at the lower voltages common in North American 480Y/277 V panels, but at 690 V you're coordination-limited to about 12 kA available fault current.
Built-in undervoltage release
The auxiliary switch configuration is 2 auxiliary switches HQ, so you get status feedback without adding a separate accessory module.
The 3VA1125-3EF32-0CC0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a standard 3-pole MCCB footprint that fits most DIN-rail or panel-mount enclosures without re-drilling.