Series TS 880 Automatic Transfer Switch

The Thomson Power Systems Series TS 880 Automatic Transfer Switch employs two mechanically interlocked power switching units with an Advanced ATS Controller to automatically start a generator and transfer system load to a generator supply in the event of a utility supply failure. System load is then automatically retransferred back to the utility supply following restoration of the utility power source to within normal operating limits.

The TS 880 is a high-performance solution for critical environments, ensuring uninterrupted power during utility outages eliminating downtime and business losses. It delivers precise open-transition transfers, with options for closed-transition load transfers to maintain power without interruption. With versatile configurations like Bypass Isolation and Service Entrance options, the TS880 offers reliability, flexibility, and safety.

All load transfer sequences are open transition with adjustable neutral position delay unless the closed transition option is supplied with the transfer switch. The optional 30-Cycle rated ATS utilizes insulated case switch power switching devices in ratings 800A through 4000A, up to 600VAC.

The standard TS 880 Automatic Transfer Switch is rated for 100% system load. The TS 880 design allows for optional use of integral over current trip elements within the power switching units. All TS 880 Automatic Transfer Switches use a TSC 7320 Advanced ATS controller which provides all necessary control functions for fully automatic operation. The controller is equipped with 2.3”back-lit LCD display which provides operating status and controls. All parameters and configurations are entered without opening the front door.

Series TS 880 Automatic Transfer Switch Options

• Closed Transition – CTTS employ two electrically interlocked insulated case power switching units and a TSC 7320 Advanced ATS Controller to automatically allow a closed transition load transfer without power interruption by ensuring both sources of power are in synchronism.
• Bypass Isolation Automatic Transfer Switch – Employ an interlock power switching mechanism that provides an easy and safe procedure for system maintenance personnel to manually isolate and bypass an Automatic Transfer Switch. The mechanical interlocking mechanism ensures that the utility and generator sources cannot be paralleled under any circumstance and the transfer switch may be bypassed to either source.
• Service Entrance – incorporate an isolating mechanism and over current protection on the utility supply, thereby removing the need to have a separate, upstream circuit breaker/disconnect switch. This design is incorporated into a standard sized ATS enclosure. offers reliability, flexibility, and safety to meet the demanding needs of critical applications.
• CSA Type B with integrated over current protection and ground fault protection

TS 880 Specifications

• Models available from 800A – 4000A continuous
• Available 3 or 4 Pole
• All models 50/60Hz rated
• Voltage range 208 – 600V
• 3 Phase, 3 or 4 wire systems

For more in-depth specifications, see the data sheet.