Siemens 3RV6021-4NA15 AC Three Phase Contactor

Siemens 3RV6021-4NA15 is a three-pole AC motor protection device in Siemens’ 3RV60 family, rated for 28 A and up to 600 V AC. It functions as a motor protection circuit breaker (MPCB) that provides protection and switching for three-phase motors in industrial control panels. The unit is configured for 3-pole operation with a maximum operating voltage of 600 V and a nominal current rating of 28 A (3P, AC). The part number 3RV6021-4NA15 uniquely identifies this unit within the 3RV60 MPCB lineup. Common applications include protecting three-phase motors in pumps, fans, conveyors, and other industrial machinery, where reliable overload and short-circuit protection are essential. This Siemens device is designed for integration in control cabinets and machine-builder panels, delivering compact, proven protection for medium-power motors up to the stated current and voltage ratings.