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Electrical Time Switches, Timers & Control Relays

ABB CM-ESS.2S SINGLE FUNCTIONAL VOLTAGE MONITORING RELAY CONTROL 24-240VAC/DC 2CO

Product Code: CM-ESS.2S

The Single-functional voltage monitoring relay is designed for over- or undervoltage monitoring. It uses a RMS measuring principle to measure DC and AC voltages in 4 different ranges: 3-30 V, 3-60 A, 30-300 V, and 60-600 V. This relay operates according to the open-circuit principle and has a rated control supply voltage of 24 - 240 V AC/DC. It features 2 CO (SPDT) output contacts rated at 250 V / 4 A. The tripping delay can be adjusted from instantaneous to 30 s (0, 0.1-30 s). The device utilizes screw connection technology with double-chamber cage connection terminals.

Technical Specifications

Brand ABB
Measuring Range AC/DC (V) 3-30, 6-60, 30-300, 60-600
Contacts 2CO (SPDT)
Degree of Protection IP50 (Housing), IP20 (Terminals)
Duty Time 100%
Function Over or Undervoltage monitoring (Single-functional)
LED Colour U/T: Green, U: Red, R: Yellow
Mounting Type DIN Rail
Operational Temperature Range (°C) -20 to +60
Overvoltage Category III
Pollution Degree 3
Rated Control Supply Voltage AC (V) 220-240
Rated Current (A) 4
Rated Frequency (Hz) 50/60
Short-Circuit Protective Device O/P Circuit NC - F Type Fuses 10 A, O/P Circuit NO - F Type Fuses 10 A
Terminal Type Screw

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