What this MCCB carries and where it fits
The Siemens SENTRON 3VA1010-3ED32-0AF0 is a 3-pole molded case circuit breaker rated 100 A at 40 °C, built for line protection in distribution panels. The TM210 thermal-magnetic release handles overloads and short circuits without external power — no undervoltage release or communication module on this variant. Interrupting capacity hits 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V, which gives you headroom for high-fault commercial and light industrial feeders. Insulation voltage is rated 800 V, so it can sit in 480/277 V or 400/230 V panels without derating the dielectric. The 70 mm depth and 76.2 mm width mean it fits standard SENTRON mounting footprints — no surprises when swapping into an existing 3VA panel layout. Maximum power loss is 25 W, which is manageable for enclosed panels with basic ventilation. The auxiliary switch configuration (1 auxiliary + 1 trip alarm switch HQ) gives a dry contact for remote status or PLC input without needing an add-on module.
Thermal derating and operating range
The 100 A rating holds flat from 40 °C up to 50 °C. Above that, it derates linearly: 98 A at 55 °C, 96 A at 60 °C, 94 A at 65 °C, and 91 A at 70 °C. If your panel ambient runs hot — say near a furnace line or in a non-conditioned electrical room — factor that 9 A drop at the top end. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C.
Interrupting capacity across voltages
The interrupting ratings step down as voltage climbs: 75.6 kA at 240 V, 52.5 kA at 415 V, 32 kA at 440 V, and 7.5 kA at both 500 V and 690 V. For a 480 V panel, the 32 kA at 440 V is the closest published figure — expect similar or slightly lower at 480 V. The 7.5 kA at 690 V is enough for 690 V industrial networks with limited fault current, but verify against your transformer size and cable impedance.
Physical footprint and panel fit
Dimensions: 130 mm height, 76.2 mm width, 70 mm depth. The 3-pole body is the standard SENTRON 3VA width — it occupies three 25.4 mm pole spaces. Trip indicator is present, undervoltage release is not fitted. No communication function on this variant; it's a straight thermal-magnetic breaker with auxiliary contacts for status feedback.