Siemens 3VA1163-5ED32-0JC0 — 63 A MCCB, 187 kA at 240 V
The Siemens SENTRON 3VA1163-5ED32-0JC0 is a 3-pole molded case circuit breaker rated for 63 A continuous current at 40 °C, with a TM210 thermal-magnetic overcurrent release and a shunt trip (STL) auxiliary release. Its interrupting capacity reaches 187 kA at 240 V, 121 kA at 415 V, 75.6 kA at 440 V, and 17 kA at 690 V — figures that govern selectivity and SCCR coordination in a distribution panel. The 70 mm depth and 76.2 mm width fit standard SENTRON mounting footprints, and the front face carries IP40 protection for dry indoor enclosures.
Current rating and thermal derating
The breaker carries its full 63 A rating from 40 °C through 50 °C ambient. Above that, the TM210 release begins to derate: 60.48 A at 55 °C, 59.22 A at 60 °C, 57.96 A at 65 °C, and 56.7 A at 70 °C. If the panel ambient runs hot — say, a tightly packed switchboard near a furnace line — the effective continuous current drops by roughly 10 % at the upper end. The operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C.
Integration and auxiliary options
The breaker ships with two HQ auxiliary switches (form C) and a shunt trip (STL) release for remote tripping. The integrated auxiliary trip order code is 3VA9688-0BL32. No undervoltage release, ground-fault monitoring, phase-failure detection, or communication module is fitted on this variant — those are separate add-on options in the SENTRON accessory range. The TM210 release is a fixed thermal-magnetic type, not electronic, so no external programming or power supply is needed for the overcurrent function. Mechanical endurance is rated at 15,000 operations.
Standards and approvals
The reference code per DIN EN 81346-2 is Q, designating a switching device for power distribution. The rated insulation voltage is 800 V. For DC network applications, the manufacturer directs to the 3VA molded case circuit breaker device manual for specific switching power values.