SENTRON 3VM1096-4ED32-0AA0 — Line Protection MCCB
The Siemens SENTRON 3VM1096-4ED32-0AA0 is a 3-pole molded case circuit breaker rated 16 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release designed for line protection in distribution panels. Its interrupting capacity reaches 121 kA at 240 V AC and 76 kA at 415 V AC, giving selectivity headroom for high-fault service-entrance or sub-distribution boards.
Breaking Capacity and Coordination
At 440 V the breaker clears 40 kA; at 500 V it still holds 12 kA — this derating curve matters when the panel feeds a 480 V motor control center and the fault current at the bus exceeds 10 kA. Rated insulation voltage is 800 V, so the 3VM1096-4ED32-0AA0 can be applied in 690 V systems where the line-to-line voltage stays within that limit.
Thermal Derating and Ambient
Continuous current holds at 16 A from 40 °C up to 55 °C, then drops to 15 A at 60 °C and 14 A at 70 °C — a shallow derating curve that keeps the breaker usable in crowded enclosures without oversizing the frame. Maximum power loss is 11 W per pole, which adds up to 33 W total in a three-pole block — factor that into the enclosure thermal budget when grouping several breakers.
Mounting and Dimensions
The 70 mm depth and 76.2 mm width fit standard SENTRON panel footprints; height is 130 mm. Front protection is IP40, suitable for enclosed distribution boards where splash ingress is not expected.