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Interface modules create the connection between control and load

Coupling relay KRA-F

METZ CONNECT interface modules are the ideal separation between logic and load in control and automation technology. The coupling relay series KRA-F is designed for DIN rail mounting and equipped with innovative spring clamp technology. In addition to the compact housing design and a front height of 45 mm to mount in any electrical distribution cabinet, they are equipped with a manual control facility for manual operation. The operating state can be signalled via feedback contact to a control unit.

When servicing is required or when starting up a control unit, the relevant consumers can be checked on the control unit before switching. In case of a failure of the control unit, an emergency operation can be maintained by means of the manual control. This helps avoid long downtimes during the installation and increases security.


Innovative connectivity


Innovative connectivity

  • easy wiring without tools by innovative spring clamp technology (push-in system)
Intuitive handling


Intuitive handling

  • easy connection of contacts A1 and/or A2 by a 10-pole connecting bridge
  • no additional wiring work
Manual control


Manual control

  • manual function test in case of initial setup and service purposes before the control unit is switched on
  • feedback contact for signalling and display at the control unit
  • LED for status indication of the switch position
Compact design


Compact design

  • with a width of 11.2 mm, only a minimum amount of space is needed in the electrical cabinet
  • front height of 45 mm to mount in any electrical installation distributor
Coupling relay KRA-SRA-F10/21
Coupling relay KRA-SRA-F10/21

Application examples

Valves
Electric motors
Pumps
Fans
Application examples

Product overview

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