Product Description
CHANGE OVER M Ext Automatic Transfer Switch Controller Module
The CHANGE OVER M Ext is a professional-grade automatic transfer switch (ATS) controller module designed for critical power management applications. Housed in a compact 22.5mm DIN rail enclosure, this module efficiently monitors both mains and emergency power sources, automatically managing the switchover to ensure an uninterrupted power supply. It features multiple configurable outputs, including four standard outputs and two changeover relay contacts (NC/C/NO), providing versatile control over contactors or motorized breakers. Integrated LED indicators offer an immediate visual status of the mains, emergency, and power supply states, while built-in fuse holders provide essential circuit protection. Ideal for industrial control panels, backup power systems, and generator applications, the CHANGE OVER M Ext ensures reliable and automated power source selection.
Technical Specifications:
- Model: CHANGE OVER M Ext
- Product Type: Automatic Transfer Switch (ATS) Controller
- Mounting: DIN Rail (35mm)
- Housing Width: Approx. 22.5 mm
- Power Inputs: 1x Mains (L, N), 1x Emergency (L, N)
- Outputs: 4x Switched Outputs (OUT 1-4), 2x Changeover Relay Outputs (OUT 5, OUT 6) with NC/C/NO contacts
- Indicators: LED for Mains, Emergency, and Power Status (PS)
- Protection: Integrated fuse holders (F3, F4)

CHANGE OVER M Ext Automatic Transfer Switch Controller Module
A compact, DIN rail mountable Automatic Transfer Switch (ATS) controller module for seamless power management between mains and emergency sources. Features multiple outputs and status LEDs for industrial applications.



