The 3VA1216-5EF32-0AG0: This is a Siemens 3VA1 IEC frame 250 molded-case circuit breaker — class M breaking capacity, meaning it interrupts 55 kA at 415 V without welding or damage. The TM240 thermal-magnetic trip unit gives you adjustable overload protection from 112 A to 160 A and short-circuit pickup set 5 to 10 times In.
The 160 A frame with adjustable Ir (112–160 A) lets you dial in the exact motor or feeder load without swapping trip units. The short-circuit protection range (5–10 x In) gives flexibility for inrush — set low for resistive loads, high for motor starting. Nut keeper kit and auxiliary switch (1 HP) plus trip alarm (1 HP) are factory-fitted, saving panel-builder wiring time.
Molded-case circuit breakers in the 3VA1 series are standard for main feeders, large motor branch circuits, and distribution in industrial switchboards and motor control centers.