SENTRON 3VA1110-5EF36-0AH0 — 100 A MCCB with TM240 trip
Interrupting capacity is the headline here: 187 kA at 240 V AC, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at both 500 V and 690 V. That 187 kA figure at 240 V means it handles high-fault conditions on the secondary side of a step-down transformer without needing a current-limiting fuse upstream — useful for large MCC buckets or main panel feeders. Thermal derating is published per the datasheet: full 100 A up to 50 °C, then 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. If the panel ambient runs hot, size the load at the 70 °C figure — that 9 A drop matters on a near-full bus.
Footprint and panel fit
Dimensions are 130 mm high, 76.2 mm wide, 70 mm deep — standard 3-pole MCCB footprint for a 100 A frame. Snaps onto DIN rail or bolts to a mounting plate; the 70 mm depth keeps it clear of shallow enclosure back panels. Rated insulation voltage Ui is 800 V, so it's rated for 690 V line-to-line systems with margin. The auxiliary contact block is factory-fitted as 2 auxiliary switches plus 1 trip alarm switch (HQ configuration) — no separate purchase needed for status feedback to a PLC or annunciator.