The Siemens SENTRON 3VA1010-3ED42-0JA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously at 40 °C ambient without derating. At 240 V it interrupts fault currents up to 75.6 kA — enough headroom for most industrial service-entrance and distribution panels where the available fault current is high. The TM210 thermal-magnetic overcurrent release provides fixed thermal and magnetic trip thresholds, so there is no adjustment dial to accidentally shift during maintenance.
Breaking capacity across voltages
The interrupting rating drops as line voltage rises: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. For a 480 V panel the 32 kA figure is the one that governs SCCR compliance — verify it against the transformer nameplate or the utility's available fault-current study before committing the BOM line.
Thermal derating and power loss
Rated current holds flat at 100 A from 40 °C up to 50 °C, then steps down: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. If the breaker sits in a crowded enclosure with internal ambient above 50 °C, the continuous load must be capped at the derated figure — no spare, no sleep. Maximum power dissipation is 25 W, which factors into the enclosure thermal budget.
Shunt trip and auxiliary release
This variant includes a shunt trip (STL) auxiliary release, meaning a remote signal — from an E-stop relay, a PLC safety output, or a fire-alarm panel — can electrically trip the breaker without an operator on site. The undervoltage release is absent on this order code, so it will not drop out on a voltage dip; if that behavior is needed for your safety circuit, a different 3VA variant with the undervoltage release is the correct pick.
Physical fit and panel integration
The breaker measures 130 mm high, 101.6 mm wide, and 70 mm deep. The 4-pole width (101.6 mm) is standard for a 100 A frame in the SENTRON 3VA platform — it occupies the same mounting footprint as other 4-pole 3VA breakers in the same frame size, so a panel laid out for a 3VA11 or 3VA10 with the same pole count should accept this unit without re-drilling the backplate.