The Siemens SENTRON 3VA1025-3ED32-0JC0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection, carrying 25 A continuously at 40 °C ambient — and it holds that same 25 A rating all the way up to 50 °C, only tapering to 24 A at 55 °C and 23 A at 70 °C. That thermal curve means you don't have to oversize the frame for a warm panel; the breaker delivers its full nameplate current across most real-world enclosure temperatures. Breaking capacity is the headline here: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and still 7.5 kA at 690 V. That 75.6 kA at 240 V puts it squarely in the high-interrupting class for North American 240/277 V distribution — it clears a bolted fault on a large step-down transformer without the upstream fuse having to see it. Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — a standard SENTRON 3VA frame footprint that drops into existing DIN-rail or panel-mount layouts without re-drilling. The auxiliary release is a shunt trip (STL), and the design includes two HQ auxiliary switches.
Lifecycle status is listed as current — this is an active catalog item in the SENTRON 3VA family, not a phase-out or last-time-buy. That means the factory line is still running it, and the usual Siemens distribution channel carries it.