Overview
The ABB CR-M110DC4, also cataloged as the CR-M110DC4 pluggable interface relay, operates as a switching component for electrical signal isolation and circuit control within ABB CR-M relay interface systems. It uses a 110 V DC coil supply and provides 4 C/O contact outputs for switching external control circuits.
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | CR-M110DC4 |
| Brand | ABB |
| Product Type | Pluggable miniature interface relay |
| Origin | Poland |
| Weight | 0.033 kg |
| Dimensions | 21.2 mm W x 35.6 mm H x 27.5 mm D |
| Operating Temp | Operation: -40 deg C to +70 deg C; Storage: -40 deg C to +85 deg C |
| Power Consumption | Coil power consumption not specified |
| Product ID | 1SVR405613R8000 |
| EAN | 4013614497872 |
| Control Supply Voltage | 110 V DC |
| Output Configuration | 4 C/O (SPDT) contacts |
| Contact Rating | 250 V AC / 6 A |
| Terminal Type | Flat-pin connections |
| Rated Insulation Voltage | 250 V |
| Protection Degree | IP40 |
| Mounting Method | DIN Rail mounting through CR-M socket |
| Contact Material | Not specified |
| Standards Compliance | IEC/EN 61810-1, IEC/EN 63000, UL 508, CAN/CSA C22.2 No.14 |
ABB CR-M Relay Interface and Switching Characteristics
The CR-M110DC4 uses ABB CR-M socket technology to provide a plug-in relay structure with separate relay and socket components. Therefore, the relay can be replaced without modifying the field wiring connected to the socket.
The integrated mechanical test button allows manual relay actuation during commissioning. Additionally, the LED indicator provides visual confirmation of coil energization status.
The relay supports industrial control circuit switching with multiple contact paths. The 4 C/O SPDT configuration enables independent switching of normally open and normally closed circuits from a single 110 V DC control signal.
ABB CR-M series components support DIN Rail installation through compatible sockets. Furthermore, accessories such as logic sockets, function modules, holders, and markers expand configuration options for control cabinet assembly.
The CR-M110DC4 is designed for industrial switching applications where DIN Rail mounting stability, compact I/O density scaling, and modular relay replacement are required. The relay interface concept follows ABB industrial control component practices, including firmware-independent hardware operation and compatibility with standard control cabinet architectures.
Frequently Asked Questions
Q: Can the CR-M110DC4 relay operate directly on a PLC output channel?
A: The relay accepts a 110 V DC rated control supply input. A suitable PLC output interface or intermediate switching arrangement must match the coil voltage and electrical load requirements.
Q: Does the CR-M110DC4 support hot-swap replacement?
A: The relay uses a pluggable structure with a compatible CR-M socket. Replacement procedures must follow site electrical isolation requirements before removing the relay module.
Q: What is the function of the integrated test button?
A: The test button provides manual mechanical actuation of the relay contacts for commissioning checks and circuit verification.
Field Installation Guidelines
Install the CR-M110DC4 relay into a compatible ABB CR-M socket before mounting the assembly on the DIN Rail.
Verify that the control supply voltage matches the specified 110 V DC coil rating before energizing the circuit.
Keep relay wiring separated from high-current switching conductors to reduce electrical interference. Use proper terminal tightening procedures and confirm that contact loads remain within the specified switching ratings.
For cabinet installations, maintain adequate airflow around relay assemblies and avoid installation locations exposed to excessive vibration, contamination, or moisture.
Check the LED indication and perform functional contact testing after installation. Confirm that the connected control logic correctly responds to relay state changes.
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