1SVR405660R0000 ABB CR-U3S Socket for 3 C/O CR-U Relay Screw Connection

Why Choose the ABB CR-U3S Relay Socket?

The ABB CR-U3S is a robust pluggable relay socket designed specifically for ABB CR-U universal relays with three changeover contacts. As part of the ABB CR-U universal relay range, it provides the mechanical mounting and electrical connection interface required to integrate compatible relays into industrial automation, machinery and electrical control systems.

The CR-U3S is designed for 3 C/O (3PDT) CR-U relays and features dependable screw connection terminals for secure conductor termination. Its plug-in relay arrangement allows the relay itself to be installed or replaced without disturbing the permanent field wiring connected to the socket.

Designed for DIN rail installation, the CR-U3S provides a practical platform for modular relay interface assemblies. The socket also accommodates compatible pluggable function modules, while a relay holder and marker are available as accessories for secure installation and clear circuit identification.

Key Advantages

• Purpose-designed socket for ABB CR-U universal relays.
• Suitable for 3 C/O (3PDT) relay configurations.
• Screw connection terminals provide secure conductor termination.
• Plug-in relay arrangement simplifies servicing and relay replacement.
• Supports compatible pluggable function modules.
• Holder and marker accessories are available for the CR-U socket system.
• DIN rail mounting supports modular control-panel construction.
• Well suited to industrial automation and electrical interface applications.

Key Features

• ABB CR-U universal relay range.
• Designed for 3 C/O (3PDT) CR-U pluggable relays.
• Screw terminals for control and load wiring.
• Provision for compatible pluggable function modules.
• Compatible with ABB CR-U holder and marker accessories.
• DIN rail installation for industrial control cabinets.
• Compact 38 mm width.
• Service-friendly socket design enables relay replacement without rewiring the socket.

Reliable Connections for CR-U Universal Relays

The ABB CR-U3S provides the electrical and mechanical interface between a compatible CR-U relay and the permanent control-panel wiring. Its screw terminals provide secure conductor connections, while the pluggable relay format makes maintenance straightforward because a relay can be removed or replaced without disconnecting the socket wiring.

The socket's compatibility with pluggable CR-U function modules provides additional flexibility when configuring relay interfaces. Optional holder and marker accessories further support secure relay retention and clear identification, making the CR-U3S suitable for organised and service-friendly industrial control assemblies.

Typical Applications

• Industrial electrical control panels.
• PLC and controller interface circuits.
• Machine building and factory automation.
• CR-U universal relay assemblies.
• Process control systems.
• Motor control and auxiliary switching circuits.
• Industrial signal isolation and interface applications.