iC3 Earth Continuity and Pilot Control Relay

PRODUCT OVERVIEW

The iC3 Earth Continuity Relay delivers next-generation protection for mining and industrial supply cables. Designed in  Australia and compliant with the latest statutory and industry standards, the iC3 provides highly stable earth-continuity  monitoring using advanced microprocessor-based filtering and continuous self-diagnostics.

Its enhanced stability over long pilot cables makes it ideal for VSD systems, trailing cables and electrically noisy  environments.

The iC3 is compliant to AS2081:2011.

APPLICATION

The iC3 continuously monitors the resistance of the pilot-earth circuit using diode termination at the load end. The  microprocessor supervises signal integrity, filters noise and detects pilot resistance faults with high accuracy.

The iC3 offers:  

• Improved noise immunity for long cable runs

• Faster and more accurate pilot-integrity detection

• Adjustable trip resistance and delay for site-specific tuning

• Safe operation in hazardous areas (Ex ib compliant)

Suitable for:  

• Mining electrical starters

• Continuous miners and longwall systems

• Pumping and conveyor systems

• Surface and underground fixed plant

• Any installation requiring certified earth-continuity verification

FEATURES

• Operational trip resistance selectable from 5–45 Ω

• High tolerance to pilot capacitance and inductance — supports long cable runs • Local or remote start operation (remote start/stop using 100 Ω resistor) • Failsafe operation

• Designed for explosive atmospheres — Ex ib compliant

• Digital filtering for improved noise performance

• Continuous microprocessor-based self-diagnostics

ORDERING INFORMATION

SPECIFICATIONS

Supply:

Power: 2 VA ±20%

Operating Temp: 0–60°C

Pilot-to-Earth Resistance:

EC Mode selectable values: 5, 10, 15, 20, 25, 30, 35, 40, 45 Ω (max) Remote Start Mode: 105, 110, 115, 120, 125, 130, 135, 140, 145 Ω (max) Start Resistance: 1000 Ω

Shunt Resistance for Trip:

• Less than 1 kΩ

Trip Delay:

• 100–500 ms

Relay Contacts:

• 2 × changeover contacts

• 5A – 240 V AC

Enclosure

Dimensions: 75 mm (W) × 55 mm (H) × 110 mm (D)

Material:

• High-impact resistant polycarbonate construction

• IP20 rating

Mounting: DIN rail

Terminals: Cage screw terminals

Weight: 216 g

Certification

This product is designed and manufactured in accordance with ISO9001:2000 certified company standards. It is compliant with AS2081:2011.

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m-tronix Pty Ltd

info@m-tronix.com.au | +61 435 939 513 | www.m-tronix.com.au