Switching Power – Craig & Derricott Automatic Transfer Switch Range

Switching the Source

There are masses of benefits to installing a means of switching a mains power source to a back-up system to help protect against power outages and extend uptime in the event of an extended power failure.

automatic transfer switch typical installation sites.

The Standard for Reliable Power

Having a reliable source of standby power alleviates the issue of electrical problems occurring and disrupting an electrical network. A voltage drop and outage could lead to a life-threatening scenario such as the failure of life-saving Hospital equipment. An Uninterruptable Power Supply (UPS) in unison with an Automatic Transfer Switch (ATS) helps protects those devices keeping them functional when the primary power has failed.

Data Centres are another industry that relies heavily on a constant power supply uptime along with many other industries and businesses that operate 24 hours a day where power failure could prove costly.

typical UPS installation

Typical Data centre UPS installation


The BS 7671:2018 and BSI 62485 regulations, in addition to essential safety aspects, cover the correct installation of UPS and ATS equipment ensuring the devices you utilise are up to the task at hand and are installed safely and are dependable.

Leading the Charge – The ATS Range

Craig & Derricott, one of the world’s leading manufacturers of process control and power management equipment brings you the Automatic Transfer Switch (ATS) Range. Designed to meet the demands of the most demanding situations and applications the ATS range is a perfect choice. Whether it’s to ensure people’s safety in a working environment or to maintain essential supplies to a vital process, the fast and efficient transfer of power is automatically managed by the ATS system. The Craig & Derricott Automatic Transfer Switch Range is the ideal choice wherever consistent power networks have to be maintained at all costs.

Craig & Derricott have designed their ATS units to be operational in a wide variety of installations such as hospitals, water distribution facilities, airports, banking computers, data centres, shopping centres, offices, apartments and railway, wherever there is a critical need for the automatic transfer of power from a permanent duty to an alternative standby supply rapidly and seamlessly.

Replacing the Power

At their core is a 4-pole changeover device. The ATS Standard range utilises electromechanical contactors provide all of the essential requirements for automatically establishing a replacement power source in the event of power failure. Facilities are provided to control the start-up of standby generators manually and to set the under-voltage values and the required time delay.

automatic transfer switch

With a comprehensive set of ratings from 32A to 800A, their ATS units are environmentally sealed to IP65 and are perfectly suitable for all internal installations. For external use, the ATS should be specified with Stainless Steel enclosures which contain an integral anti-condensation heater & breather.

The ATS Range is Feature Packed:

  • Electromechanical, interlocked 4-pole AC1 contactor
  • Rated voltage 230V or 400V ac
  • Duty supply monitoring
  • Adjustable timers for generator and changeover start times
  • 32A – 800A (Single or 3-phase)
  • IP65 sheet steel or stainless steel enclosures
  • Optional Deep-Sea control modules
  • Combination ATS units supplied with two integral isolation switches
  • Single Line or Dual Line Bypass available, enabling essential maintenance
  • Volt free Status Relays can be included
  • Anti-Condensation heater option available

View the Range

Kempston Controls, as a supplier partner of Craig & Derricott, can supply a wide range of Automatic Transfer Switches and Uninterruptable Power Supplies to suit whatever your power transfer requirements are. Give our dedicated sales team a call on +44 (0) 1933 411411 or email sales@kempstoncontrols.co.uk to discuss your Craig & Derricott ATS range requirements.

Further Reading:

Motor Control and Protection

Signalling Change


Kempston Controls

Kempston Controls is committed to finding you the ideal solution for your application. Call us today on +44 (0) 1933 411 411, email us at sales@kempstoncontrols.co.uk, or alternatively contact us here, we will be happy to help.

Kempston Controls

0 thoughts on “Switching Power – Craig & Derricott Automatic Transfer Switch Range

Leave a Reply

Your email address will not be published. Required fields are marked *

You may use these HTML tags and attributes:

<a href="" title=""> <abbr title=""> <acronym title=""> <b> <blockquote cite=""> <cite> <code> <del datetime=""> <em> <i> <q cite=""> <s> <strike> <strong>