The Siemens SENTRON 3VA2063-5JQ32-0JL0 is a 3-pole molded case circuit breaker (MCCB) rated for line protection. It carries a full-scale current of 63 A and holds that rating across the full ambient temperature range from 40 °C to 70 °C without derating — per the datasheet, 63 A at every 5 °C increment from 40 °C through 70 °C. That flat thermal curve simplifies panel design in warm enclosures; no need to upsize the frame for a 50 °C or 60 °C environment. Interrupting capacity is 187 kA at 240 V, 121 kA at 415 V and at 440 V, 75.6 kA at 500 V, and 3 kA at 690 V. The 187 kA figure at 240 V covers high-fault transformer secondaries and large motor control centers; the 121 kA at 415 V handles most European industrial distribution. The steep drop to 3 kA at 690 V means this frame is not intended for 690 V high-fault applications — verify available fault current at that voltage before specifying. The adjustable thermal-magnetic trip range spans 95 A minimum to 756 A maximum, with an initial setting of 16 A. That wide adjustment band lets one frame cover multiple branch circuits, but the 63 A full-scale rating governs the continuous current limit — the trip range is the magnetic/instantaneous adjustment, not the continuous ampacity.
Dimensions and panel fit
The 3VA2063-5JQ32-0JL0 measures 86 mm deep, 105 mm wide, and 181 mm tall. The 105 mm width is the standard 4-module (4 x 27 mm) MCCB footprint for this SENTRON frame size — it mounts on a DIN rail or directly to a backplate with the supplied screws. Verify gland-plate clearance on the 86 mm depth; it fits most 200 mm deep enclosures but may require a spacer in shallow 150 mm boxes.
Auxiliary and release configuration
This unit ships with a shunt trip (STL) release and a full complement of auxiliary switches: 2 auxiliary switches + 1 trip alarm switch + 1 electrical alarm switch (HQ designation). The shunt trip allows remote tripping from a PLC safety output or emergency-stop circuit. The trip alarm switch provides a dedicated signal for the breaker's thermal-magnetic trip event, separate from the auxiliary position indicators. No undervoltage release is fitted. Communication function is present on this variant, per the designation. The basic switch assembly is order code 3VA20635JQ320AA0. Maximum power loss is 5.4 W at rated current.