Siemens SENTRON 3VA2163-5JP32-0CL0 — 63 A Molded Case Circuit Breaker
The Siemens SENTRON 3VA2163-5JP32-0CL0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current across the full ambient temperature range from 40 °C to 70 °C — no derating needed up to that ceiling. That 63 A holds at every 5 °C increment, per the datasheet, so it suits a panel running warm without a capacity haircut. Breaking capacity is 187 kA at 240 V, stepping down to 121 kA at 415 V and 440 V, then 75.6 kA at 500 V, and 3.7 kA at 690 V. That 187 kA figure at 240 V covers high-fault utility feeds; the 121 kA at 415 V is the number to coordinate with downstream gear on a 400 V distribution bus. It carries an undervoltage release (UVR) and a communication function, plus a built-in auxiliary switch complement: 2 auxiliary switches, 1 trip alarm switch, and 1 electrical alarm switch. The UVR trips the breaker when control voltage drops below a threshold — standard for safety disconnects on machine feeds.
Integration & Mounting
Dimensions are 181 mm high, 105 mm wide, and 86 mm deep — a standard MCCB footprint for panel-mount installation on a backplate or DIN rail adapter. The 86 mm depth leaves clearance for rear-connected busbars or cable lugs in a typical 200 mm deep enclosure. Operating temperature range is -25 °C to 70 °C; storage range is -40 °C to 80 °C. Maximum power loss is 6.5 W — negligible for thermal budgeting inside a sealed cabinet, but worth noting if multiple breakers cluster in a small sub-panel.