Automatic Transfer Switches

The AT series automatic transfer switch with ATC-600 control is engineered to provide the utmost in flexibility, reliability and value in a compact user-friendly package. The ATC-600 controller provides a full range of standard features. Combined with a wide selection of available options these switches are ready to address the needs of any system.

Features, Benefits and Functions

• Molded case switching devices designed specifically for CSA Spec 178 and UL 1008.
• High withstand, interrupting and closing ratings.
• Safe manual operation under full load.
• 3-phase close differential undervoltage sensing of normal source.
• Three levels of interlocking; (2) mechanical and (1) electrical.

Equipment Ratings

• Ratings available from 30 through 1000 amps.
• Up to 600Vac.
• 2, 3, or 4 pole.
• Enclosures - Open, NEMA 1, 3R, 4, 4X, and 12
• Optionally Rated as Suitable for Service Entrance Equipment - no additional disconnect required.

Standards and Certifications

• Meets or exceeds all applicable standards.
• CSA Spec 178 and UL 1008, UL 489, CSA, UBC and BOCA Seismic Zone 4, NFPA 110 and 99 (with certain options), EGSA 100S, NEMA ICS10, NEC Articles 517, 700, 701 and 702, ISO 9001, ISO 9002.