Coupling relays on DIN rail

Coupling relays

Coupling relays are an indispensable part of industrial automation, where reliability, safety, and efficiency are of great importance. Rely on our wide range of solid-state relays and electromechanical relays, available as plug-in versions or as complete modules. Coupling relays, force-guided coupling relays, highly compact relay modules, and relays for the Ex area also help achieve high system availability in your application.

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Comparison of relay modules Electronic and electromechanical coupling relays: In use worldwide for your application

Finding the right relays for an application is not always easy. We hope that this overview provides a little guidance. Criteria such as the number of contacts, bridge system, scope of functions and function extension, approvals, certification, and manufacturer’s declarations, option for protecting loads, and application with safe feedback provide a perfect starting point. Find the right relay modules for your application in our broad product range.

Highly compact relay modules
Universal industrial relay system
Highly compact relay modules

PLC-INTERFACE

 Universal industrial relay system

RIFLINE complete
Connection technology Push-in, screw Push-in
Number of contacts Up to 2 changeover contacts Up to 4 changeover contacts
Bridge system FBST...-PLC... continuous plug-in bridges CLIPLINE complete FBS... plug-in bridges
Scope of functions Wide range of functions in a highly compact design and industry-specific electronic versions Standard functions in various designs with multi-position relays
Approvals, certification, and manufacturer’s declarations UL and CSA incl. HazLoc, DNV, ATEX, IECEx, CCC, CCC Ex, EAC, EAC Ex, KCs, Railway, CB Scheme UL, CSA, DNV, CCC, EAC, CB Scheme (Ex approvals for RIF-2)
Function extension Connection to system cabling and programmable logic relay system Connection to system cabling (RIF-1)
Option for protecting loads Pluggable fuse adapter, integrated circuit breaker Pluggable fuse adapter (RIF-0)
Application with safe feedback Versions with 2-pos. relay modules with force-guided contacts Consistent product range with 2- and 4-pos. relay modules with force-guided contacts
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New products

PLC-INTERFACE with circuit breaker on the DIN rail
PLC-INTERFACE inverter module on a DIN rail

Relay modules – switching and fuse protection

Highly compact circuit breaker

PLC-INTERFACE offers the innovative combination of a relay interface and circuit breaker in an overall width of just 6.2 mm, for more space in the control cabinet. The nominal current and shutdown behavior can be configured individually via DIP switches on the device.

Main features

  • Configurable with DIP switch
  • Electronic fuse (circuit breaker) with physical disconnection via relay
  • Compatible with PLC-INTERFACE relay modules
  • Easy function extension in existing systems
  • Space-saving design with an overall width of 6.2 mm

Your Advantages

  • Space-saving installation in the control cabinet with the combination of relay interface and circuit breaker in an overall width of 6.2 mm
  • Reduced wiring effort with comprehensive accessories, bridging options, and system cabling solutions
  • Easy system integration and function extension of existing installations due to compatibility with PLC-INTERFACE relay modules

Relay modules – inverting signals

Compact signal inversion (PNP/NPN)

The inverter module is a 6.2 mm wide solution for inverting PNP into NPN signals and vice versa. With this coupling element, you can benefit from all the advantages of the PLC-INTERFACE relay system to implement different types of circuit with Push-in and screw connection technology.

Main features

  • Inverts the signals of ground switching NPN transistor outputs into positive switching PNP outputs, as well as signals from PNP into NPN switching signals
  • Overall width: 6.2 mm
  • Push-in or screw connection technology
  • Operating temperature range up to +60°C
  • Maximum transmission frequency: 15 kHz
  • Bridging options

Your Advantages

  • Easy signal inversion (PNP/NPN and vice versa) for the DIN rail
  • Space-saving control cabinet solution with a compact overall width of 6.2 mm
  • Flexible connection with versions with Push-in and screw connection technology
  • System compatibility with the PLC-INTERFACE relay system with bridging and marking options. Highly compact relay modules are part of the COMPLETE line system

Switching, measuring, and monitoring

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