Pluggable Rail-Mount Terminal Blocks

WAGO’s X-COM®-SYSTEM, X-COM®S-SYSTEM and X-COM®S-SYSTEM-MINI Pluggable Rail-Mount Terminal Blocks are primarily used in switchgear and control applications (e.g., railway systems). They combine rail-mount terminal blocks and pluggable connectors. The system provides time- and cost-saving system wiring during production, assembly, operation and maintenance.

The Benefits for You:

  • Pre-assembled components and mismating protection save time and money
  • Pre-wired sub-assemblies can be tested before installation
  • Components can be quickly and reliably replaced

Product Overview

The X-COM® and X-COM®S Product Line


Diversity of variants characterizes the X-COM®-SYSTEM product line. In addition to rail-mount terminal blocks, this system also includes components for PCBs, flying leads, panel mounting or through-panel applications. Tried and tested billions of times, CAGE CLAMP® technology ensures reliable connections for all application areas.


  • Error prevention: 100 % protection against mismating through coding groups with the same pole numbers
  • Mechanically protected via locking levers, strain relief plates or housings
  • Easy testing via test slots for test plugs in female connectors and carrier terminal blocks
  • Use jumpers to common female plugs and carrier terminal blocks: Select pole connections remain even after the plug has been pulled out
  • 500 V/32 A ratings are a cost-effective alternative to heavy-duty connectors



The X-COM®S-SYSTEM is available in two different terminal block widths: 3.5 mm/0.138 inch (2020 Series) and 5.2 mm/0.205 inch (2022 Series). It is compatible with our TOPJOB® S Rail-Mount Terminal Blocks and their wide range of accessories, e.g., for commoning and marking.


  • Connect conductors up to 1.5 mm2 (16 AWG) at a terminal block width of just 3.5 mm (0.138 inch) and up to 4 mm2 (12 AWG) at a width of just 5.2 mm (0.205 inch)
  • Fast wiring via Push-in CAGE CLAMP® termination of solid, stranded and ferruled conductors
  • Prevent mismating by coding groups with the same pole numbers
  • Secure female connectors via locking levers and strain relief plates
  • Handle any conceivable commoning task with multifunctional jumpers (e.g., adjacent jumpers for continuous commoning)
  • Dual jumper slots for various commoning options
  • Clear identification via multi-line marking strips and WMB markers

System Wiring up to Ex Area

WAGO’s pluggable X-COM®S-SYSTEM Rail-Mount Terminal Blocks are also available with Ex approval. These versions offer “nA” type of protection and are approved for use in Zone 2 hazardous areas.


  • Quick and reliable replacement in hazardous areas (e.g., offshore platforms) – 100 % mismating and touch-proof protection
  • Shorter locking levers increase safety by making accidental disconnection more difficult
  • The X-COM®S-SYSTEM for Ex applications is designed and certified for a maximum conductor size of 4 mm2 (12 AWG) and a nominal current up to 20 A.


WAGO X-COM®S-SYSTEM with Pluggable Inputs and Outputs

WAGO has expanded the X-COM®S-SYSTEM Pluggable Rail-Mount Terminal Block family with a new model that allows both the input and output to be plugged in. Between the connectors, there is a terminal block with all the system benefits of the WAGO’s X-COM®S-SYSTEM pluggable rail-mount terminal blocks. This fully pluggable modular solution saves customers significant time.


  • Consistently pluggable: Pre-assembled cable harnesses save time, prevent errors and minimize costs.
  • Codable: Coding prevents mismating of female connectors with the same number of poles.
  • Protection against accidental contact: Even when disconnected, safe protection against live parts is guaranteed.
  • Compatible accessories: Use the same accessories as with the TOPJOB® S Rail-Mount Terminal Block system.

Discover products

This May Also Interest You

Related Electrical Connection Technology Products

Trailblazing Connection Technology

The standard for greater safety and lower costs: Since 1951, WAGO has offered spring pressure connection technology – a maintenance-free connection system that covers every need.

Electrical Interconnection Technology

Control Cabinet Marking

A streamlined overview with less maintenance: The right marking pays off in the long run. WAGO offers a multitude of marking solutions for your tasks.