SENTRON 3VA1116-3GF42-0AA0 — 160 A, 4-Pole MCCB with TM240 Release
The TM240 release means the thermal element is calibrated for a 240 A frame but the breaker is set at 160 A — the continuous current rating is the one that governs the BOM line, not the release frame size. This is a common setup for feeders where the cable or bus rating caps the load at 160 A while the breaker's magnetic trip remains sized for the higher short-circuit withstand.
Breaking Capacity Across Voltages
Short-circuit breaking capacity varies with system voltage: 75.6 kA at 240 V AC, 52.5 kA at 415 V, 32 kA at 440 V, and 11.9 kA at both 500 V and 690 V AC. The 690 V rating is the rated operating voltage, so this breaker can serve 480 V or 600 V class panels with ample SCCR headroom; the 11.9 kA at 690 V is the limiting case for high-voltage industrial grids.
Thermal Derating and Panel Fit
Rated current holds at 160 A from 40 °C through 50 °C, then derates to 158 A at 55 °C, 155 A at 60 °C, 153 A at 65 °C, and 150 A at 70 °C. If the panel ambient runs above 50 °C, factor the derating into the load calculation — a 150 A continuous load at 70 °C still fits, but there is no margin for overload. Dimensions are 130 mm high, 101.6 mm wide, 70 mm deep. The 70 mm depth is the body-only dimension; allow clearance for the front rotary handle and arc-chamber venting per the manufacturer's mounting instructions. IP40 on the front face means it is protected against tools and wires >1 mm but not against water ingress — suitable for indoor switchgear, not washdown areas.