Cummins 0306-4991-02 Automatic Transfer Switch
Ensure seamless power continuity with the Cummins 0306-4991-02 Automatic Transfer Switch (ATS). Designed by Cummins Power Generation, this highly reliable 4-pole transfer switch features a robust 125A current rating and operates at 220V. Engineered for critical power applications, it safely transfers electrical loads between primary and backup power sources. For maintenance and emergency scenarios, the unit includes comprehensive manual operation capabilities with dedicated ‘select’ and ‘trip’ mechanisms. Built to strict industrial standards, it provides secure electrical connections with precise terminal torque requirements, ensuring long-lasting and dependable performance in demanding power generation environments.
Technical Specifications:
- Brand: Cummins Power Generation
- Model/Part Number: 0306-4991-02
- Current Rating: 125A
- Voltage Rating: 220V
- Poles: 4P
- Terminal Torque Specifications: M8 (16 N.m) / M12 (50 N.m)
- Control Terminals: A1, A2, B1, B2, AT1, AT2, BT1, BT2
- Operation Modes: Automatic and Manual (Includes specific closing/opening instructions for Side A and Side B)

| Brand | Cummins |
|---|---|
| Model | 0306-4991-02 |
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Shipping policy
If you are buying multiple items, please contact us before checking out so we can get you the best combined rate for shipping.
Our default shipping rate is $100, which is enough to cover the cost of most shipments, but it is not our expected shipping rate. Due to the varying weights and sizes of products and customer locations, please contact us with your location and the products you are interested in to get the best current shipping rates.
ENERAL DELIVERY INFORMATION
Orders will be processed and shipping during standard working hours (0830 – 1700 GMT+8) Monday to Friday (excluding Bank Holidays)
On rare occasions, your order may be handled and/or processed on a Saturday. However, we are unable to ship items on weekends, therefore any orders dealt with on the weekend will be send out the next following working day.
The cut-off point for orders to be shipped the same day is 14:00 – please contact us to confirm stock levels before placing your order
Any orders placed after the cut-off will ship the next working day assuming all parts are in stock and ready for dispatch.
All orders:
- must be paid for in full before any goods are dispatched
- require a signature upon delivery. Please ensure delivery can be made to an address where someone will be available to sign for the delivery
- are packaged with great care, ensuring your order and the contents it contains, makes it safely through the delivery network
Cummins 0306-4991-02 Automatic Transfer Switch
Shop the genuine Cummins 0306-4991-02 Automatic Transfer Switch (ATS). This robust 125A, 220V, 4-pole OEM transfer switch guarantees reliable backup power transitions and features safe manual override capabilities for industrial generator systems.

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