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1SVR405651R3300 ABB CR-M4SF Standard Relay Socket, Fork Type
ABB CR-M4SF is a standard fork-type relay socket for compatible ABB CR-M miniature pluggable relays with 2 or 4 changeover contacts, designed for 35 mm DIN rail installation in industrial control panels.
£4.19
Why Choose the ABB CR-M4SF Standard Relay Socket?
The ABB CR-M4SF is a standard relay socket with fork-type connection terminals designed for ABB CR-M miniature pluggable interface relays. As part of the ABB CR-M interface relay system, it provides a secure, serviceable connection point for compatible relays in industrial automation, machinery and electrical control panels.
This standard socket is designed for CR-M relays with 2 or 4 changeover contacts and uses fork-type terminals for field wiring. In the standard socket arrangement, the relay coil connections A1 and A2 are positioned on the lower side, while normally open and normally closed contact connections are distributed across the lower and upper sides of the socket.
With compact dimensions of approximately 22.5 × 61 × 82 mm, the CR-M4SF is designed for 35 mm DIN rail mounting and helps create organised, replaceable relay interfaces within control cabinets. Compatible ABB accessories include pluggable function modules, relay holders and markers, allowing the interface assembly to be configured to suit the application.
Key Advantages
- Purpose-designed standard socket for ABB CR-M miniature relays.
- Suitable for compatible 2 c/o or 4 c/o CR-M relay configurations.
- Fork-type connection terminals for control-panel wiring.
- Designed for convenient 35 mm DIN rail mounting.
- Pluggable relay architecture enables straightforward relay replacement without replacing the socket.
- Supports compatible ABB pluggable function modules.
- Compatible relay holders help secure the installed relay to the socket.
- Marker compatibility supports clear identification in organised control cabinets.
Key Features
- ABB CR-M miniature interface relay range.
- Standard relay socket configuration.
- Fork-type connection terminals.
- Suitable for 2 c/o or 4 c/o CR-M relays.
- Coil connections A1–A2 positioned on the lower side of the standard socket.
- Contact connections positioned across the lower and upper sides.
- 35 mm top-hat DIN rail mounting.
- Compatible with pluggable function modules, holders and markers.
- Compact construction for industrial control-panel installations.
Serviceable Relay Connections for Industrial Control Panels
Relay sockets such as the ABB CR-M4SF provide the fixed electrical and mechanical interface between control-panel wiring and a removable pluggable relay. This arrangement allows a compatible CR-M relay to be removed or replaced without disturbing the permanent field wiring, helping simplify commissioning, servicing and maintenance.
The CR-M4SF combines a compact DIN-rail format with fork-type connections and compatibility with ABB's CR-M accessory system. Pluggable function modules can extend the interface assembly where required, while compatible holders and markers support secure installation and clear circuit identification.
Typical Applications
- Industrial automation and machine control panels.
- ABB CR-M pluggable relay assemblies.
- PLC and controller interface circuits.
- Electrical isolation and signal interface installations.
- Contactor and motor-control circuits.
- Alarm, indication and signalling systems.
- Building automation control cabinets.
- OEM machinery and production equipment.
Technical Specifications
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| Device Type | Relay Socket | |
|---|---|---|
| Mounting Type | DIN rail | |
| Series | CR-M | |
| ABB order code | 1SVR405651R3300 | |
| ABB product group | 310944 – Pluggable Relays | |
| Product type | Standard relay socket | |
| Connection type | Fork type | |
| Relay compatibility | ABB CR-M miniature relays, 2 c/o or 4 c/o configurations | |
| Mounting type | DIN rail | |
| DIN rail type | 35 mm top-hat rail | |
| Width | 22.5 mm | |
| Height | 61 mm | |
| Depth | 82 mm | |
| Net weight | 0.048 kg | |
| Accessories | Pluggable function modules, relay holder and marker |
Frequently Asked Questions
What is the ABB CR-M4SF?
The ABB CR-M4SF is a standard socket with fork-type connection terminals for compatible ABB CR-M miniature pluggable interface relays.
Which relays are compatible with the ABB CR-M4SF?
The CR-M4SF is designed for compatible ABB CR-M miniature relays with 2 or 4 changeover contacts.
What connection type does the CR-M4SF use?
The CR-M4SF uses fork-type connection terminals for connecting the socket to control-panel wiring.
How is the ABB CR-M4SF mounted?
The socket is designed for installation on a 35 mm top-hat DIN rail, making it suitable for standard industrial control cabinets.
Where are the coil connections located on the CR-M4SF?
As an ABB CR-M standard socket, the A1 and A2 coil connections are positioned on the lower side, while contact connections are arranged across the lower and upper sides of the socket.
Can accessories be used with the ABB CR-M4SF?
Yes. ABB provides compatible pluggable function modules, relay holders and markers for use with the CR-M socket system.
Why use a relay socket instead of permanently wiring the relay?
A pluggable socket allows a compatible CR-M relay to be removed and replaced while leaving the fixed control-panel wiring connected to the socket, simplifying maintenance and servicing.
Trusted by Industrial Automation Professionals
ABB CR-M relay sockets provide machine builders, panel builders and automation engineers with compact and serviceable connection solutions for integrating pluggable miniature interface relays into industrial control and automation systems.
