3VA1110-4EF36-0AF0 — IEC Frame 160 MCCB, 100 A, 36 kA at 415 V
The Siemens 3VA1110-4EF36-0AF0 is a 3-pole molded-case circuit breaker in the 3VA1 series, built on the IEC frame-160 platform. It carries a breaking capacity class S rating of Icu = 36 kA at 415 V AC — meaning it can safely interrupt fault currents up to that level without upstream cascading, per IEC 60947-2. That makes it suitable for distribution panels and motor control centers where high available fault current is expected.
Trip Unit and Protection Settings
Fitted with a TM240 thermal-magnetic trip unit. The thermal element (overload) is adjustable from Ir = 70 A to 100 A, matching the In = 100 A frame rating. The magnetic (short-circuit) pickup Ii is adjustable between 5 and 10 times In — that is 500 A to 1000 A. This adjustability lets the panel builder coordinate with downstream feeders without swapping the breaker body.
Integrated Auxiliary and Alarm Switching
Includes one auxiliary switch HQ and one trip-alarm switch HQ. The auxiliary reports the breaker's open/closed position; the alarm switch changes state only when the breaker trips on a fault. Both are wired via clamp terminals — no separate add-on module needed for basic status feedback to a PLC or annunciator panel.