Specifications

Product Type

Voltage Monitoring Relay

Brand

ABB

Series

CM-ESS.2

Function Overvoltage or undervoltage monitoring	Rated Control Supply Voltage (Us) 110 to 130 V AC	Rated Insulation Voltage (Ui) 600 V (supply, measuring and output circuits); 250 V (between output circuits)
Rated Operational Voltage (Ue) 250 V	Rated Operational Current AC-15 (Ie) 3:00 AM	Timing Range 0 s; 0.1 to 30 s
Measuring Range 3 to 30 V; 6 to 60 V; 30 to 300 V; 60 to 600 V AC/DC	Rated Frequency 50/60 Hz	Terminal Type Screw type terminals
Rated Operational Current AC-12 (Ie) 4:00 AM	Rated Operational Current DC-12 (Ie) 4:00 AM	Rated Operational Current DC-13 (Ie) 2:00 AM
Minimum Switching Capacity 24 V / 10 mA	Output 2 c/o (SPDT) contacts	Short-Circuit Protective Devices 10 A fast-acting (n/c contact); 10 A fast-acting (n/o contact)
Electrical Life 100000 cycle

Conductor Cross Section Flexible

1 x 0.5 to 2.5 mm²; 2 x 0.5 to 1.5 mm²

Conductor Cross Section Solid Core

1 x 0.5 to 4 mm²; 2 x 0.5 to 2.5 mm²

Housing Material

UL 94 V-0

Depth 103.7 mm	Height 85.6 mm	Weight 0.181 kg
Width 22.5 mm

Storage Temperature

-40 to 85 °C

Operating Temperature

-25 to 60 °C

IP Rating

IP50 (housing); IP20 (terminals)

Standards and Approvals

IEC/EN 60947-5-1; IEC/EN 60255-27; EN 50178; EN 50155; IEC 60571; IEC/EN 61373; EN 45545-2

ABB CM-ESS.2SVoltage Monitoring Relay 3-30V 6-60V 30-300V 60-600V 110-130VAC 2CO SPDT 4A