What this MCCB carries — and what it means on the line
The Siemens 3VA2010-6HL32-0DA0 is a SENTRON molded case circuit breaker (MCCB) rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to the top of the panel's thermal envelope. Three poles, line-protection design, and an integrated undervoltage release (UVR) that trips the breaker when control voltage drops below its dropout threshold — standard for safety circuits that need a loss-of-voltage disconnect without a separate shunt trip. Breaking capacity hits 242 kA at 240 V and still holds 187 kA at 415 V and 440 V, so it handles high-fault utility feeds without cascading upstream. At 690 V it drops to 3 kA — that's the limit for that voltage class, so verify the available fault current if you're on a 690 V system.
Panel fit — dimensions and integration
Footprint is 105 mm wide by 181 mm tall by 86 mm deep — a standard 3-pole MCCB envelope that drops into most SENTRON distribution blocks and panel-mounting plates without re-drilling. Rated insulation voltage is 800 V, so the internal clearances and creepage are sized for 690 V systems even though the breaking capacity at that voltage is limited. Maximum power loss at rated current is 16 W — accounts for in panel thermal calculations but not a concern for standard ventilated enclosures.
What the UVR means for your safety circuit
The undervoltage release (UVR) is factory-fitted and designed for line protection — it trips the breaker when the control voltage falls below a set threshold, preventing reclosure on a dead or sagging bus. No separate voltage-trigger module needed. No ground-fault monitoring, no communication function, no trip indicator — this is a straight-ahead thermal-magnetic MCCB with UVR, not a smart breaker.