ABB CM-IWS.1S 1SVR730660R0100 Insulation Monitoring Relay

Overview

The ABB CM-IWS.1S is an insulation monitoring relay designed for continuous supervision of insulation resistance in unearthed AC, DC, and mixed AC/DC systems. It detects insulation faults at an early stage, improving system safety, reliability, and protection in industrial power distribution and automation environments.

General Information

Part Number: 1SVR730660R0100

Manufacturer: ABB

Brand: ABB

Country of Origin: Sweden

Series: CM-IWS

Type: Insulation Monitoring Relay

Function: Insulation resistance monitoring and fault detection

Application: AC/DC unearthed power systems, industrial control panels, electrical distribution systems

Mounting: DIN rail installation

Power Specifications

Supply Voltage: 24–240 V AC/DC

Power Consumption: ≤ 3.5 W

Monitored System Voltage: Up to 250 V AC / 300 V DC

Output Contact: 1 changeover relay contact (SPDT)

Protection: Overvoltage and system fault detection

Indicators: LED status indication for power and alarm

Communication & Interface

Output Type: Relay contact output

Connection Type: Screw terminal

Alarm Function: Adjustable insulation threshold monitoring

Reset Mode: Manual and automatic reset support

Diagnostics: Insulation fault detection and system status indication

System Compatibility: Industrial electrical monitoring and protection systems

Environmental

Operating Temperature: -25°C to +60°C

Storage Temperature: -40°C to +85°C

Relative Humidity: 5% to 95% RH, non-condensing

Protection Rating: IP20 (installed in cabinet)

Vibration Resistance: Industrial-grade compliance

Dimensions & Weight

Dimensions (H × W × D): 103.7 × 22.5 × 85.6 mm

Weight: 0.148 kg

Compact Protection • Reliable Insulation Monitoring