The Siemens SENTRON 3VM1163-3GD42-0AA0 is a 4-pole molded case circuit breaker rated for 63 A continuous current with a TM210 thermal-magnetic release. Its interrupting capacity reaches 76 kA at 240 V, 53 kA at 415 V, 32 kA at 440 V, and 11.9 kA at 500 V — the figure that governs the SCCR of the downstream panel. The adjustable Ir tracks up to the full 63 A rating, so you set the overload threshold to the actual load without oversizing the breaker frame.
Thermal derating and panel integration
This MCCB carries its full 63 A rating up to 50 °C ambient; above that it derates linearly to 58 A at 70 °C. In a sealed, uncooled enclosure the 17.3 W maximum power loss adds to the internal temperature rise — account for that when sizing the cabinet or the breaker will trip early on a warm day. IP40 on the front means it is protected against tools and wires >1 mm, but the body is not sealed; mount it inside a panel, not in a washdown zone.
Key ratings at a glance
Rated insulation voltage Ui is 690 V, and the maximum DC operational voltage is 500 V. The TM210 release is a fixed thermal-magnetic type with adjustable Ir up to 63 A. Mechanical endurance is rated at 12,000 operations. Operating temperature range spans -25 °C to 70 °C; storage from -40 °C to 80 °C. Dimensions: 130 mm height, 101.6 mm width, 70 mm depth.