63 A MCCB with 75.6 kA interrupting capacity — line protection for distribution panels
The Siemens SENTRON 3VA1063-3ED36-0AF0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous at 40 °C, with a thermal-magnetic TM210 release designed for line protection in distribution panels. It interrupts fault currents up to 75.6 kA at 240 V, 52.5 kA at 415 V, and 32 kA at 440 V — covering the typical fault-current range for commercial and light industrial feeder circuits. The 800 V rated insulation voltage gives headroom for 690 V systems without derating the insulation path. Rated current holds at 63 A from 40 °C through 50 °C, then tapers to 58 A at 70 °C — a thermal curve that matches the typical panel ambient. The 70 mm depth and 76.2 mm width fit standard SENTRON mounting footprints, so it swaps into existing 3VA panel layouts without re-drilling the backplate.
Interrupting ratings and trip indication — what they mean for fault coordination
The 75.6 kA interrupting rating at 240 V is the highest available in this frame size — it handles faults on the secondary side of a typical 150 kVA transformer without cascading upstream. At 690 V the rating drops to 7.5 kA, which still covers most motor-circuit faults on 690 V drives. The built-in trip indicator gives a visual flag when the breaker has opened on fault, speeding fault isolation on a multi-breaker panel.
Lifecycle and sourcing — current production, quoted to order
This 3VA1063-3ED36-0AF0 carries a lifecycle status of current production, meaning it remains an active catalog line from Siemens. No last-time-buy or phase-out notice is on record.
Panel integration — DIN-rail mount, auxiliary switch provision
The breaker ships with a 1 auxiliary switch + 1 trip alarm switch HQ pre-installed, providing both a status mirror and a remote fault signal. The 130 mm height leaves clearance for busbar connections in a standard enclosure.