MCCB for line protection with UVR
The Siemens SENTRON 3VA2325-5HL32-0DA0 is a 3-pole molded case circuit breaker rated for 250 A continuous current, with a breaking capacity of 187 kA at 240 V AC and 121 kA at 415 V AC. It includes an integrated undervoltage release (UVR) for coordinated shutdown when supply dips below the dropout threshold — essential for motor control centers and process lines where automatic restart after undervoltage is undesirable. Rated current holds flat at 250 A from 40 °C through 70 °C ambient — no derating curve to calculate in a warm cabinet. The 40 W maximum power loss is manageable in a standard IP enclosure with passive ventilation.
Breaking performance across voltage levels
At 240 V the 3VA2325-5HL32-0DA0 interrupts 187 kA; at 415 V and 440 V it holds 121 kA. At 500 V the rating drops to 75.6 kA, and at 690 V to 7.5 kA. This is a line-protection device, so the high short-circuit ratings at distribution voltages (240–440 V) give selectivity headroom downstream — you can coordinate with smaller branch MCCBs without exceeding the upstream breaker's withstand.
Physical fit and panel integration
Dimensions are 138 mm wide, 248 mm tall, and 110 mm deep. The 138 mm width matches the standard SENTRON 3VA3 frame footprint — it occupies three 45 mm module spaces on a DIN rail or panel-mount base. The 110 mm depth leaves clearance behind a 200 mm deep enclosure door.
Undervoltage release and auxiliary options
The undervoltage release (UVR) is factory-installed; no auxiliary switch is fitted. The basic switch variant is order code 3VA2325-5HL32-0AA0, which omits the UVR. If you need a shunt trip or ground-fault monitoring, this variant does not carry them — those are separate order codes in the 3VA2 family.