Siemens 3VA2010-5HL36-0BL0 SENTRON MCCB, 100 A, 3-Pole, Line

The Siemens SENTRON 3VA2010-5HL36-0BL0 is a 3-pole molded case circuit breaker rated for 100 A continuous current across the full ambient range from 40 °C to 70 °C — no derating needed up to that ceiling, which simplifies panel thermal budgeting. Its line protection design means the thermal-magnetic trip curve is optimized for cable and busbar protection rather than motor-starting duty; pair it with a contactor if you are switching a motor load. Breaking capacity hits 187 kA at 240 V, 121 kA at 415/440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The 187 kA figure at 240 V covers high-fault utility feeds; the drop to 3 kA at 690 V means this frame is not the right choice for 690 V primary distribution unless the available fault current is known to be below that threshold. For standard 400–480 V industrial panels the 121 kA rating gives ample headroom against most transformer-fed SCCR requirements.