A 200A three-phase (400V) automatic transfer switch for use within temporary electrical installations. Adjustable phase failure / under voltage relay monitoring of the primary, (duty), supply 1 only.

Technical Information

The ATS effects automatic connection of a secondary, (standby), supply 2 to a load, upon failure of the primary, (duty), supply 1. Automatically switching back when supply 1 is re-instated. May be used on Mains – Generator, Mains - Mains, or Generator - Generator systems. Switching by a pair of mechanically and electrically interlocked 4 pole contactors. ATS class PC. Utilisation category AC-31B for resistive loads in line with BS EN 60947-6-1. Volt free changeover contact provided for a generator start signal. 20A Auxiliary supply for battery charging, jacket water heaters etc. Supply available and on load indication. Test switch simulating a phase failure. Timers to adjust switching between supplies.

Enclosure: Sheet steel enclosure with hinged door, with a textured powder coat to RAL7035 (Light Grey). Complying with EN 62208, EN 61439-1-2. Protection to IP54 - IK10. Suggested internal installation, if mounted externally we recommend fitting a top canopy with bottom entry cabling only. Power cabling directly onto contactors.


  • Incomer: 2 x 200A 4 Pole Contactors (Mains & Standby)
  • Outgoing:
  • Dimensions H800 x W400 x D250
  • Weight 36kgs

All our automatic transfer switches are manufactured by ide Systems in the UK and tested to BS 7671 (12 Months Certification) and the products used within our distribution systems conform to EN 60309, EN 60529, EN 60947 and have a 12 month warranty.

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