What this MCCB is and where it fits
The Siemens SENTRON 3VM1463-5ED42-0AA0 is a 4-pole molded case circuit breaker (MCCB) carrying a continuous current rating of 630 A at 40 °C, with the same rating held up through 50 °C. Above that it derates smoothly: 618 A at 55 °C, 607 A at 60 °C, 595 A at 65 °C, and 583 A at 70 °C. That thermal curve means you can push it into a warm enclosure without losing capacity until you cross 50 °C — a real advantage in a packed panel or near a motor drive. It's fitted with a TM210 thermal-magnetic trip unit — fixed thermal and magnetic settings, no electronic adjustment. The adjustable short-circuit pickup (li) maxes at 5 040 A, which gives some field flexibility for coordinating with downstream feeders.
Breaking capacity — what it can interrupt
The interrupting ratings span the common industrial voltages: 187 kA at 240 V AC, 121 kA at 415 V and 440 V AC, and 76 kA at 500 V AC. That 187 kA at 240 V is a high-capacity rating — it handles faults on large transformers or busway drops without needing a current-limiting fuse upstream. At 415/440 V the 121 kA covers most plant distribution panels where the available fault current stays under that ceiling.
Lifecycle and sourcing
The product lifecycle status is listed as current production, so this isn't an obsolete or end-of-life part. For a BOM line that needs the 630 A 4-pole footprint with a TM210 release, this is the active catalog number. It's sourced through independent distribution channels — availability and current pricing are confirmed at quote time against an RFQ.
Panel fit and ratings
Dimensions are 248 mm high, 184 mm wide, and 110 mm deep — a standard MCCB envelope that drops into most SENTRON or general-purpose panelboards without re-drilling. The front face carries IP40 protection, so it's fine in a closed cabinet but not for washdown environments. Rated insulation voltage (Ui) is 690 V AC, and the maximum DC operational voltage is 500 V — covering most 480 V or 600 V class systems. Storage range runs from -40 °C to 80 °C, and operating ambient spans -25 °C to 70 °C, matching the derating curve above.