3RT1944-5AV61

The 3RT1944-5AV61 is a replacement AC operating coil from Siemens' SIRIUS 3RT1 series, engineered to restore or modify the control voltage operation of Size S3 power contactors. Designed for direct insertion into 3-pole 3RT104 contactor frames, this precision-wound component operates within control circuits rated for 480. Electrically, the 3RT1944-5AV61 is calibrated for a control power supply, delivering consistent magnetic pull-in and secure holding force for continuous-duty switching. Constructed with high-grade magnet wire and thermal insulation, it ensures low power consumption, minimal heat dissipation, and chatter-free contact closure under demanding, high-duty-cycle industrial operations. Mechanically, the 3RT1944-5AV61 features a drop-in replacement design that allows straightforward access to the contactor's magnetic core assembly during routine maintenance or coil voltage retrofits. Equipped with touch-safe IP20 screw terminals, it installs securely into the Size S3 contactor housing without requiring full disassembly or disturbing main power circuit wiring. Purchase the 3RT1944-5AV61 at Electrical.com, your reliable partner for industrial and commercial electrical products. Our selection includes trusted contactor coils, magnetic contactors, and motor control accessories from top manufacturers like Siemens, Eaton, Cutler-Hammer, and Schneider Electric, backed by a knowledgeable sales team ready to assist with technical questions, product selection, and support.