What this MCCB carries and where it fits
The Siemens SENTRON 3VA1063-3ED36-0AH0 is a 3-pole molded case circuit breaker rated for 63 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release. It's designed for line protection — meaning it sits at the feeder or branch to protect cables and busbars, not motor circuits. The interrupting rating hits 75.6 kA at 240 V, which covers high-fault utility feeds; at 415 V it's still 52.5 kA, and at 690 V it holds 7.5 kA. That's enough for most industrial panelboards and distribution boards where the available fault current is known to be high. Rated insulation voltage is 800 V, so it's suitable for 480/277 V and 600 V systems with margin. The TM210 release is a fixed thermal-magnetic type — no electronic adjustment, no communication module. That keeps the part simple and reliable for standard overcurrent protection, but if you need adjustable long-time or short-time pickup, you'd step up to an electronic-trip variant in the same 3VA family.
Mounting and panel fit
The breaker measures 76.2 mm wide, 130 mm tall, and 70 mm deep. That 3-inch width is standard for a 3-pole MCCB in this frame size — it fits the typical DIN-rail or panel-mount footprint used across the SENTRON line. The depth of 70 mm means it won't crowd the gland plate in a 200 mm deep enclosure, but check the handle clearance if you're mounting it on a subpanel with a door interlock.
Auxiliary switching and accessories
The breaker comes with 2 auxiliary switches plus 1 trip alarm switch (HQ type) factory-fitted. That's enough for remote status indication — open/closed plus a separate trip signal — without adding a separate accessory module. No undervoltage release, no ground-fault monitoring, no communication function on this variant. If you need those, the 3VA platform supports them as add-on modules, but this order code is the bare line-protection version.