Multispan ELR-19N Earth Leakage Relay | 30mA–30A | Panel Mount | LED Indication
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The Multispan ELR-19N is a compact, panel-mount Earth Leakage Relay engineered to detect and trip on ground leakage currents ranging from 30 mA to 30 A. With fast response, built-in test/reset functions, and LED fault indication, it enhances electrical safety across industrial, commercial, and utility panels.
Key Features
Wide Sensitivity Range: Adjustable detection from mA to 30 A
Panel Mount Design: Easy integration into MCCs, LT panels, pump starters, and distribution boards
LED Indications:
Green LED – Healthy/ON
Red LED – Leakage Trip
Built-In Functions: TEST button for simulation & RESET button for restoring operation
Trip Output: Potential-free relay contact for breaker tripping or PLC input
Fast Response Time: Immediate action to prevent damage, electrical hazards, or fire risk
Compact & Durable Housing: Ideal for new installations or retrofit projects
Power Supply: 230V AC (model dependent)
Technical Specifications (Table)
| Parameter | Specification |
|---|---|
| Model | Multispan ELR-19N |
| Leakage Sensitivity | 30 mA to 30 A (selectable) |
| Indications | ON/Healthy (Green), Trip (Red) |
| Test/Reset | Front panel TEST & RESET buttons |
| Output | Potential-free relay contacts |
| Response Time | Fast tripping on leakage detection |
| Power Supply | 230V AC (verify variant if required.) |
| Mounting | Panel mount (DIN size) |
| Application Type | LT panels, MCCs, pump starters, industrial machines |
| Operating Temperature | Typically 0–55°C |
| Enclosure | Compact ABS/PC housing |
Applications
LT Distribution Panels
Power Factor & Feeder Panels
Motor Control Centers (MCCs)
Submersible & Borewell Pump Panels
Industrial Machinery Safety & Protection
Commercial & Residential Electrical Boards
DG Panel Leakage Monitoring
What’s in the Box?
1 × Multispan ELR-19N Leakage Relay
Test/Reset instruction leaflet
Panel mounting clamps/hardware
Warranty & compliance note
FAQ
Q1. What is an Earth Leakage Relay (ELR) used for?
It detects ground leakage current caused by insulation failure and protects people and equipment from electric shock or fire hazards.
Q2. What is the sensitivity range of ELR-19N?
Selectable from 30 mA to 30 A, suitable for both light loads and heavy industrial feeders.
Q3. Does the ELR-19N include test/reset options?
Yes, it has built-in TEST and RESET buttons for functional verification and fault clearing.
Q4. Can this relay be used in industrial MCCs?
Absolutely. It is designed for MCCs, pump starter panels, LT boards, and machine protection.
Q5. What happens when leakage is detected?
The relay trips its potential-free contact, which can signal a breaker, contactor, or PLC to isolate the faulty circuit.
Q6. Is a separate CT required?
Yes—ELR systems typically use a Core Balance CT (CBCT). Select CT size based on cable size and sensitivity rating.