63 A, 3-pole MCCB with ETU330 trip unit — line protection for high-fault panels
At 690 V it still clears 187 kA, covering most industrial supply voltages. That means it can be installed in warm enclosures or near heat-producing equipment without recalculating the load current.
Sourcing and lifecycle — current production, quoted to order
For a BOM freeze or second-source review, the closest functional sibling in the SENTRON 3VA family is the 3VA1110-5EE36-0AA0. Both are 3-pole, 63 A MCCBs with electronic trip units, but the 3VA1110 series uses a different frame size and mounting footprint — verify panel cutout dimensions before substituting. The 3VA2163 frame is physically larger (181 mm height, 105 mm width, 86 mm depth) to accommodate the higher breaking capacity.
Mounting and integration — panel fit and IP40 front protection
The breaker measures 181 mm high by 105 mm wide by 86 mm deep. It mounts via screw terminals onto a backplate or DIN rail in a standard distribution panel. Power loss is 3.1 W maximum at rated current, so ventilation requirements are minimal even in densely packed panels. The unit has no undervoltage release and no communication function — it is a standalone overcurrent protector, not a networked breaker.
Ground-fault monitoring and trip unit details
This detects leakage currents by summing the phase currents — if the vector sum exceeds the threshold, the breaker trips. It is a practical feature for protecting equipment against arcing ground faults without requiring a separate ground-fault relay. The trip indicator is not present on this variant, and there is no voltage-trigger function. The adjustable thermal-magnetic curve is set via the ETU330's rotary dials on the front face.