Schneider Electric Vigilohm IM9-OL Offline Motor Insulation Monitoring Device

Name: Schneider Electric Vigilohm IM9-OL Offline Motor Insulation Monitoring Device
Price: 249.0 USD
Availability: InStock

Product Overview

The Schneider Electric Vigilohm IM9-OL is an insulation monitoring device designed to monitor the insulation resistance of motors and other offline electrical equipment. It helps detect insulation deterioration before equipment is restarted, supporting preventive maintenance and electrical safety.

The device monitors insulation resistance between the equipment and earth. Adjustable pre-alarm and motor-start inhibition thresholds allow it to signal insulation faults through indicator LEDs and relay outputs. It is suitable for compatible industrial and marine electrical systems.

Technical Specifications

Brand: Schneider Electric
Product Range: Vigilohm
Model: IM9-OL
Commercial Reference: IMD-IM9-OL
Product Type: Insulation Monitoring Device / Relay
Application: Offline motor insulation monitoring
Monitored Network Voltage: Up to 690V AC or DC, subject to configuration
Auxiliary Supply: 110–415V AC or 125–250V DC
Pre-Alarm Threshold: Adjustable from 0.5–10 MΩ
Motor No-Start Threshold: Adjustable from 0.25–2 MΩ
Response Time: Up to 2 seconds
Relay Outputs: 2 changeover relay outputs
Relay Contact Rating: Up to 250V AC, 6A; DC rating depends on voltage
Mounting: DIN rail or panel-mounted
Protection Rating: IP20 enclosure / IP40 front face
Applications: Industrial motors, generators, fire pumps, and compatible marine electrical systems

Key Features

Monitors insulation resistance of offline motors and equipment
Adjustable pre-alarm and motor-start inhibition thresholds
LED indication for insulation faults and pre-alarm conditions
Relay outputs for remote signalling and control
Manual test function
Supports TT, TN-S, and IT earthing arrangements

Applications

Marine electrical switchboards
Shipboard motors and generators
Industrial motor control panels
Fire pump monitoring systems
Electrical preventive maintenance and insulation fault detection

Compatibility Information

Before installation, confirm the auxiliary supply voltage, monitored network configuration, threshold settings, and wiring connections. This device is designed for monitoring offline equipment and should not be confused with an insulation monitor intended for continuously energized networks.