The Siemens SENTRON 3VA1010-2ED36-0BA0 is a 3-pole molded case circuit breaker (MCCB) rated for 100 A continuous current (Iu), with a TM210 thermal-magnetic overcurrent release. It's built for line protection in distribution panels — the 52.5 kA interrupting capacity at 240 V gives you headroom for high-fault service entrances or industrial subpanels. The integrated undervoltage release (UVR) means it drops the load if control power fails, which is a common requirement for safety circuits or motor feeder coordination.
What the ratings mean for fit
The 100 A rating holds flat from 40 °C through 50 °C — no derating needed in a typical warm panel. At 55 °C it drops to 96 A, and at 70 °C it's 90 A, so if your enclosure runs hot, factor that in. The interrupting ratings step down with voltage: 52.5 kA at 240 V, 32 kA at 415 V, 13.6 kA at 440 V, and 7.5 kA at 690 V. That 32 kA at 415 V is the figure most European industrial installs will check for selectivity with downstream breakers. The TM210 release is a fixed thermal-magnetic type — no interchangeable trip units, so what you order is what you get. The 800 V rated insulation voltage (Ui) covers 480/277 V and 600 V systems with margin. IP40 on the front means it's protected against tools and small wires, but not against water ingress — mount it inside a panel, not in a washdown zone.
Panel integration
The 3VA1010-2ED36-0BA0 measures 130 mm high, 76.2 mm wide, and 70 mm deep — a compact footprint for a 100 A MCCB. It mounts on a DIN rail or directly to a backplate via screw terminals. The 3-pole block leaves room for auxiliary contacts or the undervoltage release module on the side. Latching endurance is rated at 15,000 operations, so it's fine for occasional switching but not a daily contactor replacement.