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ELCB

The ELCB is a residual current device designed for earth leakage protection in low-voltage circuits.

Get a Price for This ModelSpecifications
ELCB 1P 2P 3P 4P circuit breaker on DIN rail front view
ELCB showing toggle handle and terminal connections
ELCB wiring terminals close up with live and neutral connections
ELCB installed in a distribution board with multiple poles
ELCB with test button and label showing 30mA sensitivity
Product Overview

What This Model Does

The ELCB is a residual current device designed for earth leakage protection in low-voltage circuits. It is suitable for use in distribution boards and panel assemblies where personal and equipment protection against earth faults is required. For panel builders and installers, it offers a compact, DIN rail-mounted solution that integrates directly into existing electrical systems without additional wiring or control logic.

Key Benefits

  • Provides automatic disconnection on earth leakage current exceeding the rated threshold
  • Maintains mechanical and electrical protection functions of a standard MCB while adding earth fault detection
  • Compact DIN rail design allows direct replacement in existing distribution boards
  • No external power supply needed; operates from the live circuit itself
ELCB 1P 2P 3P 4P circuit breaker on DIN rail front view
ELCB 1P 2P 3P 4P circuit breaker on DIN rail front view

Who It Is For

  • Electrical wholesalers stocking earth leakage protection devices alongside conventional MCBs
  • Panel builders specifying integrated protection in distribution boards
  • Switchgear assemblers integrating ELCBs into custom-built control panels
  • Solar EPC contractors installing protection in solar DC/AC distribution systems
  • OEM/ODM buyers sourcing a compliant earth leakage device for branded electrical products

Problems It Solves

  • A circuit remains energized despite a ground fault, risking electric shock or fire
  • No single device combines overcurrent and earth leakage protection, requiring two separate components
  • Lack of standardized earth leakage protection in older or unregulated installations
  • Difficulty in retrofitting earth fault protection without rewiring or adding external relays
  • Inconsistent protection levels across multiple circuits due to mismatched or missing devices

Application Scenarios

  • Residential distribution boards where earth leakage protection is required for socket circuits
  • Commercial buildings with multiple circuits needing individual earth fault monitoring
  • Industrial control panels where equipment grounding must be monitored for safety
  • Panel builders integrating a single device for both overcurrent and earth leakage protection
  • Renewable energy installations such as solar inverters requiring earth fault detection
Technical Features

How It Is Built

  • Automatic disconnection on earth leakage current exceeding rated sensitivity
  • Designed for DIN rail mounting in standard distribution boards

Materials and Construction

  • Silver-alloy contacts with a thermal-magnetic trip mechanism
  • Integrated earth leakage detection coil and trip mechanism inside the breaker body

Quality Control

  • Insulation and dielectric withstand test performed before packing
Specifications

Stated Ratings for This Model

Specifications for ELCB
Instantaneous Trip TypeC

Ratings are as published for this model. Where a value is not published we mark it TBC rather than estimating it.

Values that could not be confirmed against the published catalogue text for this model are marked TBC and confirmed by email before order: Standards Compliant, Rated Voltage, Frequency, Rated Current, Rack Rated Current, Protection Level, Specified Use Temperature, Mechanical Life, Electrical Life, Earth Leakage Sensitivity, Trip Time, Mounting.

Manufacturing Process

  • Moulding and machining of the breaker housing and internal carriers
  • Assembly of the thermal-magnetic trip unit and contact system
  • Fitting and calibration of the earth leakage detection coil
  • Integration of the trip mechanism and mechanical linkage
  • Routine dielectric and operation testing before packing

Customization Options

  • ODM branding on housing print and packaging
  • Packaging and carton marking to the buyer's own specification
Comparison

How It Compares

Conventional MCBAdds earth leakage protection without requiring a separate device, though at a higher unit cost
MCB plus separate earth leakage relayOne DIN device instead of two, reducing panel space and wiring complexity
RCBOSame function but ELCB is simpler and lower cost where overcurrent protection is already provided elsewhere
Zigbee or WiFi smart ELCBNo network dependency; operates purely on electrical input, but lacks remote monitoring or control

Use Guide

  1. Ensure the circuit is de-energized before making connections and verify correct polarity
  2. Switch on manually and confirm the device holds under normal load before testing leakage
  3. Keep the manual handle accessible for on-site isolation and maintenance
  4. Do not use in circuits where neutral and earth are combined or where there is a risk of neutral current imbalance

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FAQ

Questions About the ELCB

Does it still protect the circuit if the network is down

Yes. Overload, short-circuit and earth leakage protection are mechanical and work independently of the network. Only remote control would be affected.

Can we have it supplied under our own brand

Yes. We run ODM projects and can print your branding on the housing and packaging. Send us your artwork and the current ratings you need.

What are the minimum order quantity and lead time

Both depend on the current ratings and branding you need. Email [email protected] with your model list and quantities for a current answer.

How do we get a price for this model

Email [email protected] with the rated current, pole count and quantity you need and we will quote this model directly.

Can this be supplied under our own brand

Yes. We run ODM projects and can print your branding on the housing and packaging.

Which documents can you supply for this model

Datasheets, specification sheets and any certification files held for the model are sent by email on request.

Get a Quotation for the ELCB

Tell us the ratings, pole counts and quantities you need and we will price this model directly.

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