The Siemens SENTRON 3VM1116-4ED12-0AA0 is a 1-pole molded case circuit breaker (MCCB) rated for line-protection duty, carrying a continuous current of 160 A at 40 °C ambient and a maximum interrupting capacity of 76 kA at 240 V AC. That 76 kA figure at 240 V is the headline rating that governs its ability to clear a bolted fault upstream of a motor control center or distribution panel — provided the available fault current at the line side of the breaker does not exceed that value, the device will interrupt the arc without external cascading. At 415 V AC the interrupting rating drops to 9 kA, which is typical for a 1-pole MCCB on a line-to-neutral or single-phase tap; the part is not intended for three-phase line-to-line fault duty at 415 V. The TM210 thermal-magnetic release provides fixed inverse-time overload protection and instantaneous magnetic trip, with no undervoltage release or shunt-trip accessory fitted as-delivered.
The 25.4 mm width (1 inch) and 70 mm depth place this breaker in a standard 1-pole MCCB footprint, occupying one module position on a DIN rail or panel-mount base. The IP40 rating on the front means the breaker face is protected against solid objects larger than 1 mm — sufficient for a closed electrical enclosure but not for washdown or outdoor exposure. The 130 mm height (5.12 in) fits within the typical vertical clearance of a 200 mm deep gland-plate enclosure, provided the incoming cable bend radius is accounted for. Ambient derating begins at 55 °C: the 160 A rating holds flat from 40 °C through 50 °C, then drops 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 internal temperature exceeds 50 °C under full load — common in a poorly ventilated MCC bucket — the continuous current must be reduced by roughly 6% by the time you hit 70 °C.
Against the 3VA1010-2ED32-0JA0, which is a 3-pole SENTRON 3VA breaker with electronic overcurrent release and higher interrupting ratings, the 3VM1116-4ED12-0AA0 is a simpler, lower--pole thermal-magnetic device for single-phase line protection. The 3VA series offers adjustable trip settings and communication options; the 3VM series is fixed-trip, no communication, no ground-fault monitoring. If the BOM calls for a 1-pole 160 A MCCB with a TM210 release and no auxiliary functions, the 3VM1116-4ED12-0AA0 is the direct fit — the 3VA would be overspecified and more expensive for that role.