The Siemens 3VA2025-5HL32-0AA0 is a SENTRON molded case circuit breaker (MCCB) rated for 25 A continuous current with a 3-pole configuration. Its ETU320 electronic overcurrent release provides adjustable thermal-magnetic protection curves for line protection duty in distribution panels.
This MCCB delivers 187 kA interrupting capacity at 240 V AC, 121 kA at 415/440 V, and 75.6 kA at 500 V — figures that give a site electrical engineer headroom for high-fault-current service entrances or transformer secondaries.
Thermal performance and panel integration
The 25 A continuous rating holds across the full ambient range from -25 °C to 70 °C — no derating needed up to 70 °C, which simplifies panel thermal calculations in hot environments or enclosed switchboards. Dimensions are 181 mm high, 105 mm wide, and 86 mm deep — a standard 3-pole MCCB footprint that fits most Siemens SENTRON mounting bases and busbar systems without re-drilling. Front face carries IP40 protection, adequate for dry indoor panel environments; no gasketing required for typical distribution board use.