Siemens SENTRON 3VA2225-5HN32-0AD0 — 250 A MCCB for Line Protection
The Siemens SENTRON 3VA2225-5HN32-0AD0 is a 3-pole molded case circuit breaker (MCCB) rated for 250 A continuous current, designed specifically for line protection in distribution panels and industrial switchboards. Its interrupting capacity reaches 187 kA at 240 VAC, 121 kA at 415/440 VAC, 75.6 kA at 500 VAC, and 4.5 kA at 690 VAC — covering fault levels from low-voltage service entrances down to motor-control-center buswork. Thermal derating is published across the full operating range: full 250 A up to 50 °C, then linearly decreasing to 213 A at 70 °C. This matters for panel builders sizing the breaker in a warm enclosure — the 250 A nameplate holds only below 50 °C ambient. Physical footprint is 105 mm wide × 181 mm high × 86 mm deep — a standard 3-pole MCCB form factor that fits most Siemens SENTRON mounting bases and busbar systems without adapter plates.
Sourcing & Lifecycle — Active Production, Quoted to Order
Maximum power loss is 48 W at rated load — a figure to include in enclosure thermal calculations if the panel is densely packed.
Integration Notes — Auxiliary Switches, Temperature Range, and Options
Comes configured with three auxiliary switches (HQ type) for status feedback to a PLC or annunciator panel. No undervoltage release, no shunt trip, no ground-fault monitoring, and no communication function on this variant — those are separate order-code options. Operating temperature range is -25 °C to +70 °C; storage range is -40 °C to +80 °C. The storage minimum matters for unheated warehouses in cold climates — the breaker can sit at -40 °C without damage. The supplied basic switch is order code 3VA2225-5HN32-0AA0 — the same frame and trip unit, just without the auxiliary switch block. If you need to swap the auxiliary configuration in the field, that base variant is the starting point.