ABB Voltage Monitoring Relay Single Phase SPDT DIN Rail Mount 240V AC/DC CM-ESS.1S 1SVR730830R0300 1SVR730830R0300 CM-ESS.1S

ABB 1SVR730830R0300 CM-ESS.1S Voltage Monitoring Relay is designed for precise and reliable voltage monitoring in single phase AC or DC electrical systems. It features a SPDT contact configuration and is intended for mounting on DIN rails, combining robust industrial reliability with compact form factor. Operating at 240V AC/DC supply voltage, this relay supports a wide range of industrial and commercial electrical automation needs.

The device operates on the open-circuit principle, monitoring the voltage applied between terminals B and C. When the voltage moves beyond preset thresholds - including both overvoltage and undervoltage conditions - the output relay energizes accordingly. Users can configure a tripping delay from immediate response up to 30 seconds. The hysteresis is user-adjustable to reduce relay chatter during voltage fluctuations. The relay includes four measuring ranges to cover voltages from 3 to 600V RMS, making it versatile for various applications.

With a power consumption of only 0.75 watts and screw terminal connections, the relay is optimized for energy efficiency and installation convenience. Its construction ensures operation within a temperature range up to 60°C and protection rating IP20 for indoor environments. The slim 22.5 mm width saves valuable control panel space while tri-color LEDs provide clear status indication.

Typical applications include use in electrical automation systems, industrial monitoring setups, HVAC controls, manufacturing processes, and power distribution panels. The relay’s rugged construction and precise monitoring aid in protecting electrical equipment from damage due to abnormal voltage conditions.

Voltage monitoring relay suitable for single phase AC and DC systems. SPDT contact configuration for reliable switching. Four selectable measuring voltage ranges from 3-600V RMS. Adjustable hysteresis from 3 to 30 percent.

Tripping delay remotely adjustable between 0 and 30 seconds. Compact design with 22.5 mm width for DIN rail mounting. Visual status indication using three LEDs. Power consumption of only 0.75W ensuring energy efficiency.

Screw terminals for secure wiring connections. Designed for operating temperatures up to 60°C and IP20 rating.

This ABB CM-ESS series relay is manufactured in Germany adhering to RoHS standards ensuring compliance and environmental considerations. It is an ideal choice for system integrators and maintenance professionals seeking a high-precision voltage monitoring solution.

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