Automatic transfer switches (ATS) provide a solution for reliable, rapid transfer of primary and alternative power to ensure the availability of electrical power in critical facilities such as high-rise buildings, hospitals, IT or telecommunications centres, airports and industrial sites. ATS equipment can operate autonomously without human intervention after commissioning and parameter set up.

NHP offers a complete range of manual multi-polar changeover and bypass switches that provide safe and reliable transfer between two sources of incoming power supply when operated locally by personnel. They are available in standard or visible break contact variants with a comprehensive range of accessories including mechanical interlocking.

Remotely operated switches allow the transfer from one power source to another (transformer/transformer, transformer/gen set etc.) to ensure the availability of electrical power downstream of the device. Operated via an electrical signal, volt-free contacts or other external control, for applications where a transfer switch is required to be predominantly operated by site control networks.