125A Automatic Transfer Switch ATS – Three Phase

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Product Details

Make the most of your generator by adding a 125A automatic transfer switch (ATS) 3-Phase for added security and peace of mind. This mains to generator automatic changeover switch seamlessly detects a power outage and start your standby generator. As soon as mains power is restored the transfer switch turns off the generator and connects back to the mains power supply.

How Does a 125A Automatic Transfer Switch 3-Phase Work?

This transfer switch should be permanently installed close to the mains incoming supply to your building. In normal operation the load is supplying by the mains in the usual way but when the mains power is lost the ATS switch senses this loss and sends a signal to start your generator.

When the generator has started and is up to speed and frequency (normally around 8 to 10 seconds) this automatic changeover switch will automatically transfer the load to the standby generator set.

The automatic transfer switch will continually monitor the mains power and when this returns it will transfer the load back to the mains and initiate a cooling cycle and stop the generator. The transfer switch will then reset in readiness for the next power interruption.

General Specification of the 125A Automatic Transfer Switch 3-Phase includes:

  • 4 Pole mechanically & electrically interlocked pair of contactors.
  • Mains incoming input
  • Generator incoming input
  • Load output terminals
  • Mild steel enclosure
  • Bottom gland plate
  • Voltage monitoring relay for Mains supply
  • Over & under voltage protection of Mains supply
  • Panel status via LED indicators. Mains On Load, Plant On Load
  • Two wire start interface for generator control (starting &stopping)
  • Fuses for control & monitoring circuit protection
  • Generator warm up timer
  • Mains restoration timer
  • Full set of electrical schematics

Installation Note

The system is intended to be installed by a professional electrician with experience in standby power. Please contact Hampshire Generators if you need any assistance. Hampshire Generators can also maintain your generator with a regular cost-effective service plan or one-off visit. Simply call 01329 722390 or inquire via contact us page for more information.

125A Automatic Transfer Switch ATS – Three Phase

  • Voltage:Industrial 3 Phase + N 415v
  • Frequency:
  • Fuel:
  • Max Power:
  • Rated Power:
  • Starting System:
  • Oil Capacity(L):

Lifetime UK Support

It is essential that you service and maintain your generators regularly. Excel Power Equipment is fully taken care of in the UK with engineer support— giving you full peace of mind.

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