Siemens 40JG32A Contactor

Siemens 40JG32A is a three-pole, non-reversing power contactor in the SZ4 / Class 40 family, built for AC-3 motor-load duty with a 135 A rating. The model is offered in multiple coil-voltage variants to suit different control circuits, including 110/120 V AC (50/60 Hz), 120/240 V AC (50/60 Hz), and higher-voltage configurations such as 380–440/440–480 V AC, depending on the specific variant. This makes it suitable for switching three-phase motors in industrial equipment like conveyors, pumps, fans, and processing lines. When selecting a 40JG32A, confirm the exact coil voltage, enclosure type (open or otherwise), and any available auxiliaries or accessories to ensure proper panel fit and electrical coordination. The 40JG32A family is widely stocked by Siemens distributors and is designed to meet typical medium-current motor-control requirements in industrial installations.