ABB CM-ESS.2S Voltage Monitoring Relay

P>The CM-ESS.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- or under voltage monitoring configurable
• Hysteresis adjustable (3-30%)
• Tripping delay TV adjustable (0s; 0.1-30s)
• 3 control supply voltage versions
• 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
• 2 c/o (SPDT) contacts
• 22.5mm (0.89 in) width
• 3 LEDs for status indication

Type	Voltage monitoring relay
Contact Configuration	SPDT
Dimensions	68 x 22 x 103mm
Operating Voltage (AC)	3 to 600V
Operating Voltage (DC)	3 to 600V
Temperature Range	-20 to +60°C