The LV847205 is a Schneider Electric MasterPact MTZ1 drawout circuit breaker, part of the MasterPacT range. It's a 4-pole (4P) unit rated 630 A at 40 °C, with an H1 performance class delivering 42 kA breaking capacity at 415 V AC. This is a Category B breaker per IEC 60947-2, meaning it's fully selective — it coordinates with downstream devices so only the faulted branch clears, keeping the rest of the distribution live. The drawout chassis lets you rack the breaker in and out for maintenance or swap without disturbing the bus connections, which is the standard for critical power distribution in industrial switchgear.
Breaking capacity and fault handling
The H1 rating means 42 kA Ics (service breaking capacity) holds all the way from 220/415 V AC up to 660/690 V AC — no derating at the higher voltage. Icw (short-time withstand) is 42 kA for 1 second, which is what you need for selective coordination with downstream feeders. Maximum break time is 25 ms, closing response 50 ms. That's fast enough to limit let-through energy for downstream gear.
Drawout mounting means it sits on a chassis with rails or a base plate — the breaker itself is 306.5 mm wide without chassis, 358 mm with. Depth is 207.5 mm without chassis, 291 mm with. Connection pitch is 70 mm, with both front and rear connection options on the upside and downside. Neutral position is left. The IP30 enclosure protection is typical for indoor switchgear — it keeps tools and fingers out but isn't rated for washdown.
Rated insulation voltage (Ui) is 1000 V AC, operational voltage (Ue) 690 V AC. Impulse withstand (Uimp) is 12 kV. Altitude derating applies above 2000 m; up to 5000 m with derating. Electrical durability is 3000 cycles at 690 V, 6000 cycles at 440 V. Mechanical durability is 12500 cycles with periodic preventive maintenance.
Compliant with EN/IEC 60947-1, EN/IEC 60947-2, EN/IEC 60947-2 Annex H (EMC), and IEC 61557-12 (performance monitoring). The sensor rating is listed as 400 A and 630 A — this breaker ships without a control unit, so the sensor rating refers to the current transformer taps available in the drawout cradle. You'd add a Micrologic trip unit separately to set the protection curves.