What this MCCB carries and where it fits
The Siemens SENTRON 3VA1163-5ED36-0AC0 is a 3-pole molded case circuit breaker rated 63 A continuous at 40 °C, with a TM210 thermal-magnetic overcurrent release. It's designed for line protection in distribution panels — the kind of main or feeder breaker that sits upstream of branch circuits in a commercial or industrial switchboard. Breaking capacity is the headline here: 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 500 V and 690 V. That 187 kA figure at 240 V means it can safely interrupt a fault current up to 187,000 amps without welding contacts or venting gas into the enclosure — critical for high-fault locations like transformer secondaries or large motor control centers. Rated insulation voltage is 800 V, so it's rated for 690 V systems with headroom. The TM210 release is a fixed thermal-magnetic type — no interchangeable trip units, which simplifies ordering but means you commit to the 63 A rating at the time of purchase.
Thermal derating and panel fit
The 63 A rating holds from 40 °C up to 50 °C. Above that it derates: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, 58 A at 70 °C. If your panel ambient runs hot — say, a non-ventilated enclosure near a furnace line — you need to account for that 58 A ceiling at 70 °C. Operating range is -25 °C to 70 °C; storage from -40 °C to 80 °C. Dimensions are 70 mm deep, 76.2 mm wide, 130 mm tall — a standard 3-pole MCCB footprint that drops into most SENTRON panelboards and third-party enclosures with a 3-inch wide mounting slot. The 17.3 W maximum power loss means it won't cook adjacent devices in a tightly packed panel, but it's not negligible either — leave some breathing space.
Auxiliary switching and compliance
Comes with 2 auxiliary switches (HQ type) built in — no separate add-on module needed for status feedback to a PLC or alarm panel. No undervoltage release, no ground-fault monitoring, no communication function on this variant. It's a straight line-protection breaker with basic aux contacts.