Specifications

Product Type

Current Monitoring Relay

Brand

ABB

Series

CM-SRS.2

Function Overcurrent or undercurrent monitoring, configurable	Rated Control Supply Voltage (Us) 220 to 240 V AC	Rated Insulation Voltage (Ui) 600 V (supply/measuring/output); 250 V (between output circuits)
Rated Operational Voltage (Ue) 250 V	Rated Operational Current AC-15 (Ie) 3:00 AM	Timing Range 0 s or 0.1 to 30 s
Measuring Range 3 to 30 mA; 10 to 100 mA; 0.1 to 1 A	Rated Frequency 50/60 Hz	Terminal Type Screw 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 0.179 kg
Width 22.5 mm

Storage Temperature

-40 to 85 °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; cULus E140448; CCC; DNV GL; CE; UKCA; RCM; CMIM; RoHS

ABB CM-SRS.21S.240 Single-Functional Current Monitoring Relay