The Siemens SENTRON 3VA2163-5JQ32-0AH0 is a 3-pole molded case circuit breaker (MCCB) rated for 63 A continuous current, with an ETU560 electronic trip unit for line protection. Its 187 kA breaking capacity at 240 V handles high-fault-current scenarios typical of large distribution panels or transformer secondaries. The 121 kA rating at 415 V and 440 V covers most European industrial mains, while the 4.25 kA at 690 V suits lower-fault installations like motor control centers. This MCCB carries a 63 A rating across ambient temperatures from 40 °C to 50 °C, with a gentle derating curve starting at 55 °C (60.6 A) down to 53.6 A at 70 °C — useful for panels with limited airflow or high internal heat rise. The 800 V rated insulation voltage (Ui) gives headroom for 690 V systems.
Lifecycle and sourcing
The basic switch variant (without trip unit) is order code 3VA2163-5JQ32-0AA0, which may be relevant for replacement of the switching mechanism alone.
Integration and mounting
Dimensions are 105 mm wide, 181 mm high, and 86 mm deep — a standard SENTRON 3VA2 frame size that fits Siemens distribution panels and most third-party enclosures with compatible mounting cutouts. The front face carries IP40 protection, suitable for enclosed panel mounting where dust ingress is controlled. The auxiliary contact configuration (2 auxiliary switches + 1 trip alarm switch HQ) provides status feedback for PLC or SCADA systems. Communication function is built in, supporting integration into higher-level monitoring without an external module.
Trip unit and protection features
The ETU560 electronic trip unit offers adjustable protection curves for line protection. A trip indicator is present for quick fault identification during troubleshooting. No undervoltage release or phase failure detection is fitted on this variant; those functions would require a different order code or add-on module. Maximum power loss is 4 W, which is low enough to avoid significant heat buildup in a densely packed panel. The operating temperature range spans -25 °C to 70 °C, with storage from -40 °C to 80 °C.