Siemens SENTRON 3VA1010-2ED42-0JA0 — 100 A MCCB with Shunt Trip
The Siemens SENTRON 3VA1010-2ED42-0JA0 is a 4-pole molded case circuit breaker (MCCB) rated for line protection, carrying 100 A continuously at 40 °C ambient with no derating needed up to 50 °C. Its TM210 thermal-magnetic release provides fixed overload and short-circuit protection, while the integrated shunt trip (STL) allows remote tripping via a separate control voltage — useful for emergency-stop or interlock circuits where you need to drop the load without opening the main disconnect.
Breaking Capacity and Selectivity
Rated breaking capacity reaches 52.5 kA at 240 V, 32 kA at 415 V, and 13.6 kA at 440 V — figures that cover most industrial distribution panels fed from a typical 400 V transformer. At 500 V and 690 V the rating holds at 7.5 kA, so this breaker can serve as a main or branch device in 480 V and 600 V class systems where the available fault current stays within that limit. The 800 V rated insulation voltage (Ui) confirms it is designed for 690 V line-to-line systems per IEC 60947-2.
Thermal Derating and Power Loss
Current rating holds flat at 100 A from 40 °C through 50 °C, then derates to 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. Maximum power loss is 25 W at rated load — a figure to include in enclosure thermal calculations, especially in sealed or high-ambient panels. Storage range spans -40 °C to 80 °C; operating ambient is -25 °C to 70 °C.
Physical Fit and Panel Integration
Dimensions are 130 mm height, 101.6 mm width, and 70 mm depth — a standard 4-pole MCCB footprint that mounts on a DIN rail or panel-mount base. The 70 mm depth leaves clearance for rear-connected busbars and wiring troughs in a 200 mm deep enclosure. No trip indicator is fitted on this variant; the voltage-triggered shunt trip coil is the only auxiliary release.