Description
iSTS-R
DIN Rail Mounted Static Transfer Switch 1Ph/2 Pole 16A max
A Static Transfer Switch (STS) provides your critical load or single cord (single supply), equipment with an alternative supply source, thus increasing and improving power reliability and availability. The iSTS-R is a 2 pole, single phase DIN Rail mount STS that suits 35mm x 7.5mm rail. Both the active conductor and the neutral are switched. Thyristors are used to undertake the switching process. These are many times faster and more reliable than their electromechanical equivalents.
The iSTS continuously monitors the supply sources and should the presently connected supply fail or degenerate or become useable, the critical load is automatically and transparently transferred to the alternate source. This switching process is undertaken as a break before make transfer. The break in the supply transition is so short that it is not seen by the critical load. This is preferable to make before break (or overlapping) changeover because when the two supplies are different and connected together large and unpredictable currents would flow between the sources degenerating both supplies and therefore the supply to the critical load.
In case of a downstream fault, the iSTS will not transfer the fault to the alternate supply even if the voltage is adversely affected. Once the fault current has cleared the iSTS will resume normal operation protecting the critical loads from voltage disturbances, (10 second settling time).
Main Features
- Advanced Automatic Transfer Switch – ATS – functionality
- 16A, 1-phase, 2-pole
- Built-in transient voltage protection
- RCD site compatibility
- Safe asynchronous source transfers
- Very high MTBF (>500,000 hours)
- Manual and automatic transfers selection
- Preferred source selection
- Visual and sound alarms
- Bi-colour LED mimic and load indicator
- One voltage-free general alarm contact
Typical Applications
- Buildings
- PLCs
- CNCs
- Robotics
- BMS
- Workshop IT
- Servers
- Work Stations
- Warehouses
