Overview – WN3, ATS, 250A, 3P, 220VAC COIL 0306-4968-02
For Cummins generator and power-control positions as the automatic transfer switch, the Cummins WN3, ATS, 250A, 3P, 220VAC COIL 0306-4968-02 provides the correct fit and performance expected from a genuine-spec replacement.
Parts Characteristics
An automatic transfer switch that senses a mains loss and moves the load from utility to generator and back, carrying the full current through its contacts. It is the decision-maker of the power system, so a true, correctly rated switch keeps the site energized without a manual throw.
Applicable Models & Applications
Used at Cummins power-control positions specifying this ATS (250A, 3-pole, 220VAC). Match the current rating, the pole count and the control voltage against your panel – transfer switches differ in how they sense and switch.
Maintenance & Replacement
Inspect the contacts for pitting and the actuator for free movement at every service. A switch that has begun to arc reads the transfer wrong, and the fault is silent until the mains drops.
Exercise the switch on schedule so it does not seize from disuse. A transfer switch left untouched for a year can refuse to move when the load actually needs it.
Confirm the control supply and the sensing are correct on fit. A switch fed the wrong voltage either never transfers or transfers without command.
Keep the correct ATS for your genset on the shelf. It is load-critical, and a site left dark on a switch is a site waiting on a part.
Price Reference (USD)
The WN3, ATS, 250A, 3P, 220VAC COIL 0306-4968-02 is offered in the USD 200-900 range, with quantity breaks available for fleet maintenance programs.
Value & Service
We supply brand-new Cummins automatic transfer switches with the current rating and control voltage confirmed against your power panel, so the load transfers without a manual throw.
Racer Machinery’s catalog covers the full Cummins Electrical Parts range, and the WN3, ATS, 250A, 3P, 220VAC COIL 0306-4968-02 is priced to keep your maintenance budget under control.







