SENTRON 3VM1063-3ED42-0AA0 — 63 A MCCB with TM210 Release
The Siemens 3VM1063-3ED42-0AA0 is a SENTRON molded case circuit breaker (MCCB) designed for line protection in distribution panels. It carries a 63 A continuous current rating at 40 °C with a 4-pole configuration and a TM210 thermal-magnetic overcurrent release. The TM210 release provides fixed thermal and magnetic trip settings, suited for protecting cable runs and busbars against overloads and short circuits without adjustable thresholds. This makes it a straightforward choice for fixed-distribution applications where trip coordination is pre-calculated. Breaking capacity reaches 76 kA at 240 V AC, 53 kA at 415 V AC, 32 kA at 440 V AC, and 8 kA at 500 V AC — covering most low-voltage commercial and industrial fault levels. The 800 V rated insulation voltage supports 480Y/277 V and 400Y/230 V systems with margin.
Current Derating and Thermal Performance
The 63 A rating holds flat from 40 °C through 50 °C, then derates gradually: 62 A at 55 °C, 61 A at 60 °C, 60 A at 65 °C, and 58 A at 70 °C. For panels in high-ambient environments (e.g., enclosed switchgear or near heat sources), this derating curve lets you size the breaker without overspecifying. Maximum power loss is 22 W at rated load — a useful figure for calculating enclosure ventilation and internal temperature rise in multi-breaker panels. Operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C. The IP40 protection on the front face suits indoor panel mounting where dripping water or tools are not a concern.
Physical Fit and Panel Integration
Dimensions are 101.6 mm wide, 130 mm high, and 70 mm deep — a 4-pole MCCB footprint that fits standard Siemens SENTRON mounting bases and busbar systems. The depth of 70 mm (2.76 in) is shallow enough for 200 mm deep enclosures with wiring space behind. No undervoltage release, no voltage trip, no communication function, and no ground-fault monitoring — this is a base-model line-protection breaker. If your BOM requires any of those, you need a different variant in the 3VM family.