Technical Guides

Airport Backup Power · ATS Engineering Selection An automatic transfer switch can be part of an airport backup-power system, but airport auxiliary power and aviation-critical power are not the same…

A marine automatic transfer switch can be considered when a low-voltage load needs to transfer automatically between two AC sources such as shore power and a generator. For a vessel,…

Oil & Gas Control Panel ATS Selection If an oil and gas control panel needs two power sources, an automatic transfer switch may form part of the backup-power architecture. But…

This guide focuses on automatic transfer switches for mineral mining operations, including selected low-voltage auxiliary circuits in open-pit mines, underground mine support areas, dewatering stations, workshops and mineral-processing facilities. It…

An automatic transfer switch can be used in an irrigation pump system to transfer the incoming supply of a pump control panel between utility power and a standby generator. The…

Selecting an automatic transfer switch for a cold-storage or refrigeration system is not simply a matter of matching an ATS ampere rating to the total refrigeration load. The correct selection…

A compact automatic transfer switch can be a practical part of an industrial control panel or selected factory backup circuit, but it should not be selected as if it were…

Engineering Selection Guide When an elevator or building system has both normal utility power and a standby source such as a generator, an automatic transfer switch can transfer the upstream…

Engineering & Procurement Guide A fire pump is not an ordinary standby load. When an installation uses automatic transfer between a normal power source and an alternate source, the transfer…

Pump Control Panel Engineering Guide A pump station automatic transfer switch should be selected as part of the complete utility-generator-pump control system, not from pump power alone. For suitable low-voltage…