The CM-EFS.2 is an electronic voltage monitoring relay that provides reliable monitoring of voltages as well as detection of phase loss.
All devices are available with two different terminal versions. You can choose between the proven screw connection technology (double-chamber cage connecting terminals) and the completely tool-free Easy Connect Technology (push-in terminals).
- Monitoring of DC and AC voltages (3-600V)
- TRMS measuring principle
- One device includes 4 measuring ranges
- Over- and under voltage monitoring
- ON- or OFF-delay configurable
- Latching function configurable
- Threshold values for >U and <U adjustable
- Fixed hysteresis (5%)
- Precise adjustment by front-face operating controls
- Screw connection technology or Easy Connect Technology available
- Housing material for highest fire protection classification UL 94V-0
- Tool free mounting on DIN rail as well as demounting
- Tripping delay TV adjustable (0 s; 0.1-30s)
- 1x2 c/o (SPDT) contacts (common signal) or 2x1 c/o (SPDT) contact (separate signals for >U and <U) configurable
- 22.5mm (0.89 in) width
| Type |
Voltage monitoring relay |
| Contact Configuration |
SPDT |
| Dimensions |
68 x 22 x 103mm |
| Operating Voltage (AC) |
24 to 240V |
| Operating Voltage (DC) |
24 to 240V |
| Output Current |
0.011 to 0.03A |
| Temperature Range |
-20 to +60°C |
