63 A MCCB with ETU320 — interrupting capacity and trip unit fit
The Siemens 3VA2163-6HL36-0CA0 is a 3-pole SENTRON molded case circuit breaker (MCCB) rated for 63 A continuous current at 40 °C, with the ETU320 electronic overcurrent release. The ETU320 provides adjustable long-time, short-time, and instantaneous protection, plus ground-fault alarm or trip when configured with the optional module. The operating temperature range spans -25 °C to 70 °C, with the current derating curve starting at 55 °C — at 70 °C the continuous rating drops to 53.55 A.
Undervoltage release and auxiliary trip integration
The breaker does not include a voltage trip or phase failure detection function, per the spec sheet. The basic switch itself is the 3VA2163-6HL36-0AA0. The unit has no communication function and no ground-fault monitoring version. Trip indicator is not present on this order code — visual trip status must be inferred from handle position or via the optional auxiliary contacts.
Physical dimensions: 105 mm width, 181 mm height, 86 mm depth. The 86 mm depth includes the handle and rear arc-chamber protrusion; verify clearance behind the mounting plate when the breaker is in the tripped position.