In the event that your preferred mains power source is interrupted or disrupted, the EXCHANGE range of Static Transfer Switches are designed to automatically transfer your critical load/s to an alternative power source. Source-to-source transfer time is very fast and typically less than ¼ of a cycle.

Should you require a supreme and enhanced level of power protection for ultra-critical applications, SIEL can configure EXCHANGE Static Transfer Switches together with Uninterruptible Power Supplies to form a fully integrated Turnkey Power System
The SIEL range of EXCHANGE Static Transfer Switches feature:-
We will be pleased to help with any of your product, installation or maintenance requirements for STS applications