Integrator's terse spec recap
The Siemens 3VA2163-5JQ42-0AA0 is a SENTRON molded case circuit breaker (MCCB) with 4 poles, rated at 63 A continuous current across the full 40 °C to 70 °C ambient range — no derating needed up to 70 °C. It carries an ETU560 electronic trip unit, configurable for line protection, with an adjustable N-conductor protection setting (OFF, 40 % to 160 %). Breaking capacity reaches 187 kA at 240 V AC and 121 kA at 415 V and 440 V; at 690 V it still interrupts 3.8 kA. The unit measures 181 mm high, 140 mm wide, and 86 mm deep — a standard MCCB footprint for panel integration.
Panel-builder commissioning notes
Mounts on a DIN rail or panel base; the 86 mm depth fits standard distribution boards. The IP40 front protection means it is suited for indoor panel use where no water jets are present. The ETU560 trip unit supports communication (Communication Function: Yes), allowing integration with higher-level monitoring systems. Power loss is max 4 W, negligible for thermal budget in a populated cabinet. Storage range is -40 °C to 80 °C; operating range -40 °C to 70 °C — the same as the rated current window.