ABB CR-M110DC4 pluggable interface relay

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Product Overview

The ABB CR-M110DC4 Pluggable Interface Relay is a compact, modular relay designed for industrial automation, control, and signal switching applications. With its pluggable design, it enables easy installation and maintenance, offering high reliability and long service life to ensure stable operation even under demanding conditions.

Technical Specifications

• Model: CR-M110DC4

• Type: Pluggable Interface Relay

• Rated coil voltage: 110 V DC

• Contact configuration: 4C/O (4 changeover contacts, 4PDT)

• Rated contact current: 6 A (AC/DC load)

• Contact material: AgNi (silver-nickel alloy), optional Au plating

• Mechanical life: approx. 10 million operations

• Electrical life: approx. 100,000 operations (at rated load)

• Dielectric strength: ≥ 2.5 kV (rms)

• Mounting: Pluggable socket installation (compatible with ABB CR-M series sockets)

• Ambient temperature range: -40…+70 °C

• Certifications: CE, RoHS, UL, IEC

Features & Benefits

1. Pluggable design – quick replacement and easy maintenance.

2. High reliability – silver-nickel contacts for excellent conductivity.

3. Multi-contact output – 4C/O configuration supports versatile control.

4. Long service life – high mechanical and electrical durability.

5. Compact structure – saves panel space.

6. Strong compatibility – works with ABB sockets and accessories.

Application Areas

• Industrial automation and process control

• Power systems and switchgear

• Machinery manufacturing and production lines

• Building automation and HVAC systems

• Signal switching and isolation protection

Precautions

1. Ensure the input voltage matches the rated coil voltage.

2. Operate within rated current and voltage limits to prevent contact overload.

3. Use relay sockets with protective circuits to extend service life.

4. Avoid prolonged operation in high-humidity or corrosive environments.

5. Periodically inspect sockets and contacts to prevent poor connectivity.

The structure and details of the product：

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