1300 556 601
Products

Electrical Time Switches, Timers & Control Relays

ABB CM-SRS.21P SINGLE-FUNCTIONAL CURRENT MONITORING RELAY 3-30mA, 10-100mA & 0.1-1A, CONTROL 24-240VAC/DC 2CO PUSH IN TERMINALS

Product Code: CM-SRS.21P

This single-functional current monitoring relay is designed for over- and undercurrent monitoring. It uses a RMS measuring principle to accurately measure DC and AC currents. The relay has 3 measuring ranges: 3-30 mA, 10-100 mA, and 0.1-1 A. It operates according to the open-circuit principle and can be powered by a control supply voltage of 24 - 240 V AC/DC. The relay features 2 CO (SPDT) output contacts that are rated at 250 V / 4 A. The tripping delay can be adjusted from instantaneous to a maximum of 30 s (0, 0.1-30 s). It also has push-in terminals for easy installation.

Technical Specifications

Brand ABB
Contacts 2CO (SPDT)
Degree of Protection IP50 (Housing), IP20 (Terminals)
Duty Time 100%
LED Colour U/T: Green, I: Red, R: Yellow
Measuring Range (A) 0.003 - 0.03, 0.01 - 0.1, 0.1 - 1
Mounting Type DIN Rail
Operational Temperature Range (°C) -20 to +60
Overvoltage Category III
Pollution Degree 3
Rated Control Supply Voltage AC (V) 110-130, 220-240
Rated Control Supply Voltage AC/DC (V) 24 - 240
Rated Current (A) 4
Rated Frequency (Hz) 50/60
Rated Impulse Withstand Voltage (kV) 6/4
Terminal Type Push-in
Timing Range Tripping delay: 0s or 0.1-30s (ON or OFF)

Documents

Products to compare:
Comparing Products