Suitable for following application:
	Generator panels
	Synchronizing Control Panels
	AMF Panels, MCC panels
	Air Circuit Breakers (With shunt Trip Coil)
	MCCB (With Shunt Trip Coil)
	Motor Control Panels

Advanced Ground Fault Protection

The S2 CMR3 relay delivers high-sensitivity ground fault detection for electrical equipment and panels. Its selectable sensing range and fast response time (<100 ms) ensure prompt protection, minimizing downtime and preventing equipment damage.

Robust Construction and Standards Compliance

Built with flame-retardant ABS plastic, the relay offers durability and safety. It meets international standards like IS/IEC 60255-26 and IEC 60947-1, making it a trusted solution for Indian industrial and commercial applications.

Flexible Mounting and Easy Installation

The standard DIN rail mounting and screw-type terminals facilitate straightforward installation. With a compact size and color-coded enclosure, the relay seamlessly integrates into existing electrical panels and systems.

FAQs of Minilec Ground Fault Monitoring Relays S2 CMR3:

Q: How does the Minilec S2 CMR3 Ground Fault Monitoring Relay detect faults?

A: The relay uses high-sensitivity sensors to detect ground faults within a selectable range of 30 mA to 10A. Upon detection, it activates the output relay and provides trip indication via an LED, enabling quick identification and rectification of faults.

Q: What types of electrical equipment can the S2 CMR3 relay protect?

A: This relay is suitable for safeguarding motors, transformers, generators, and electrical panels. Its precise fault detection capabilities make it ideal for a variety of industrial and commercial applications.

Q: When should I use the auto and manual reset features?

A: Auto reset is recommended for applications where immediate restoration of power is crucial after fault clearance. Manual reset offers additional security by allowing technicians to verify and reset faults manually, making it suitable for critical equipment.

Q: Where is the S2 CMR3 relay typically mounted and how easy is installation?

A: The relay is designed for DIN rail mounting, a standard method used in electrical panels. Its compact dimensions and screw-type terminals simplify installation in both new and existing setups.

Q: What are the benefits of LED trip indication on this relay?

A: LED trip indication provides clear, instant visual feedback when a fault occurs. This helps maintenance personnel diagnose issues quickly, reducing downtime and enhancing safety.

Q: Is the relay compatible with different voltage supplies?

A: Yes, the S2 CMR3 is available in variants suitable for 230V AC, 110V AC, and 415V AC supplies, making it adaptable to various installation requirements.

Q: How does this relay ensure reliable long-term operation?

A: With a mechanical life rated at 10 million operations, flame-retardant housing, and compliance with stringent IS/IEC standards, the relay offers robust performance and extended service life.

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