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Welcome to BOSS-MART - Brightech Online Sales & Service | Genuine Quality Products - 12 Months Warranty
Welcome to BOSS-MART - Brightech Online Sales & Service | Genuine Quality Products - 12 Months Warranty
Product Id# 373-ELRW-CBC5-A3-ST
The 373-ELRW-CBC5-A3-ST is part of Crompton Instruments’ 373-ELR series, designed to detect and respond to earth leakage faults in electrical systems.
The 373-ELRW-CBC5-A3-ST is part of Crompton Instruments’ 373-ELR series, designed to detect and respond to earth leakage faults in electrical systems. It continuously monitors residual current via an external core-balanced current transformer (CT) and trips when leakage exceeds a user-defined threshold. This helps prevent fire hazards, equipment damage, and electric shock risks.
| Attribute | Value |
|---|---|
| Function | Earth Leakage Protection Relay |
| Trip Current Range | 30 mA to 10 A (10 selectable levels) |
| Time Delay Settings | 0 ms to 10 seconds (16 selectable delays) |
| Response Time | < 40 ms at 5× rated trip current |
| Relay Contacts | 8 A @ 250 V AC, volt-free changeover |
| Output Type | Double-pole changeover relay (DPCO) |
| Auxiliary Supply | Switched-mode, wide voltage range |
| Mounting | DIN rail (43880 enclosure) |
| Display | LED bar graph for leakage level, trip indication, and power status |
| Pre-Alarm Feature | Optional (not included in ST version) |
| Analog Output | 0–1 mA (for monitoring) |
| Operation Mode | Default: de-energize on trip; can be reversed via terminal link |
| Compliance | CE marked, RoHS compliant |
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