What this MCCB delivers in the panel
The Siemens 3VA1463-7EF42-0AA0 is a 4-pole SENTRON molded case circuit breaker rated for 630 A continuous at 40 °C, with no derating needed until 55 °C where it still holds 618 A. That means it carries full rated current in most ventilated enclosures without forced cooling — the thermal curve is flat across the typical panel ambient range. The TM240 thermal-magnetic release handles overload and short-circuit protection in one unit — no separate relay needed for line protection duty. Breaking capacity hits 440 kA at 240 V, 242 kA at 415 V, and still 17 kA at 690 V, so it handles high-fault utility feeds without cascading upstream.
Sizing and selectivity notes
At 630 A frame size with a 4-pole footprint (248 mm height, 184 mm width, 110 mm depth), this breaker fits standard SENTRON mounting patterns. The 800 V rated insulation voltage gives headroom for 690 V systems without creepage concerns. Power loss at full load is 192.9 W maximum — factor that into enclosure thermal rise calculations, especially in sealed or high-fill panels. The IP40 front protection means it's suitable for indoor switchboards but not washdown zones.
Panel integration
Mounts on a standard DIN rail or direct panel-mount via the SENTRON base. The motor drive option (listed as available) allows remote trip and reset for automated lines. No communication module onboard — this is a standalone breaker, not a networked power distribution unit. Operating temperature range from -25 °C to 70 °C covers most indoor industrial environments. Storage range from -40 °C to 80 °C — the storage minimum is the handling limit, not the running limit.