ABB PSU14n-2X double-stable isolating relay


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ABB PSU14n-2X double-stable isolating relay

ABB PSU14n-2X Bi-Stable Relay – Bi-Stable Relay, Electrically Reset Contacts with Operation Indicator.

Technical Specification of ABB PSU14n-2X Bi-Stable Relay

  • Type: Electro Mechanical Relay.
  • Protection Type: Bi-Stable Relay.
Technical Specifications  Details
Model No :  PSU14n-2X
Relay type PSU14n-2X Bi-Stable
Auxiliary voltage 24/30/48/110/125//220/250 V DC
Type of mounting Plug-in base mounting
Contact configurations 14NO+0NC/ 13NO+1NC/ 12NO+2NC/ 11NO+3NC/ 10NO+4NC/ 9NO+5NC/ 8NO+6NC/ 7NO+7NC
Typical applications CB/ Isolation/ Earth switch/ Contact multiplication/ Voltage selection/ CT switching



The bistable relays are mainly used for remote and automatic controls where there is often a need for contactors which have two stable contact positions, even in the dead state.

The application of alternate control pulses to the coils because the contacts to change from the one state to the other. If the supply is interrupted, the contacts remain in their previous position, even when the voltage is restored. The contacts are arranged symmetrically on both sides of relay coil and armature assembly in two stacks.


  • PSU6nXBasic relay with 6 free contacts and without indicator mounted on one set of plug-in base
  • PSU14n2XBasic relay with 14 free contacts and with indicator mounted on two sets of plug-in base
  • RXPSU6n
  • RXPSU14n


  • Easy installation and maintenance
  • Highly reliable
  • Visual Indication