ASCO Transfer Switches

ASCO automatic transfer switches (ATS) are intelligent switching devices that automatically transfer electrical loads between a primary power source and a backup generator or alternate supply when an outage occurs. When utility power fails, the ASCO ATS senses the loss and signals the generator to start. Once stable power is available, it transfers the load seamlessly to maintain uninterrupted operation, then automatically switches back to utility power when normal service is restored.

ASCO automatic transfer switches are available in a wide range of ampere ratings, voltage classes, and configurations, from light commercial applications to large industrial systems. Models typically range from 200 amps up to 4000 amps, with options for 3-pole and 4-pole configurations, as well as open-transition, closed-transition, and delayed-transition designs. Enclosures are available in NEMA 1, 3R, and 4X types, suitable for both indoor and outdoor environments.

Selecting the correct ASCO automatic transfer switch requires matching several key specifications, including amperage, voltage, number of poles, and enclosure type. It’s also important to consider your load type, transfer requirements, and coordination with generators or UPS systems. Global Power Supply’s technical team can review your electrical design and recommend the appropriate ASCO ATS model for safe, compliant, and efficient operation.

Yes. ASCO ATS units are fully compatible with most generators and UPS systems, making them ideal for integrated critical power applications. They are designed to manage load transfers between multiple power sources. They can be used in conjunction with diesel or natural gas generators, UPS systems, and battery energy storage systems to ensure continuous and stable power to critical loads.

To request pricing or availability for ASCO automatic transfer switches, visit the ASCO product listings on our website and click "Add to Quote." Complete the short form with your project details, and our sales team will respond promptly with current stock availability, lead times, and configuration options. You can also contact us directly at info@globalpwr.com for model comparisons or technical assistance.