Relay Interfaces

Relay interfaces are devices for housing relays. They're a convenient way to organise and operate relays and they can also improve relay performance.

Every relay contains contacts, which are pieces of electrically conductive material, usually metal. When a pair of contacts touch, they pass an electrical current, making the switch ’closed'. When the contacts separate, the switch is ’open' and the current stops flowing. As well as housing relays, relay interfaces can be used to operate a relay's contacts.

How do relay interfaces work?

Relay interfaces can be convenient ways to operate relays. Relays are inserted into the slot or slots in the interface and they stay snugly mounted there until they're ejected. The relay interfaces commonly contain switches that make the contacts in each relay ’closed’ (on) or ’open’ (off).

Relay interfaces can also contain protection circuits that expand the range of relay input voltage.

Types of relay interfaces

Each relay interfaces is compatible with a specific relay, or several different relays. The relays may be stacked pyramidally or slotted in side by side. Relay interfaces also differentiated by their voltages, which can be AC, DC or AC/DC.

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Part Details Brand Accessory Type For Use With Series Voltage Current Rating
LED Module for use with RT78724, RT78726, 24V dc TE Connectivity Module RT78724, RT78726 - 24V dc -
LED/Diode module 6-24Vdc Finder - - 99 Series 24V dc -
Interface Relay Module, 24V dc Phoenix Contact - - PLC-BSC 24V dc -
LED Module for use with RT Series, 24V dc TE Connectivity LED Module RT Series - 24V dc -
REL-MR- 24DC/21AU/MS Phoenix Contact - - REL-MR- 24DC/21AU/MS 24V dc 7mA
Interface Relay Module for use with RT78724, RT78726, 6 → 24V ac/dc TE Connectivity LED Plug In Module RT78724, RT78726 - 6 → 24V ac/dc -
Relay Interface, 6A Phoenix Contact - - - - 6A
REL-MR- 12DC/21/MS Phoenix Contact - - REL-MR- 12DC/21/MS 12V dc 14mA
Relay Interface for use with 93 Series Finder Separator 93 Series 93 Series - -
LED Module for use with PR1 Series, PR2 Series, 24V dc Phoenix Contact Plug In Module PR1 Series, PR2 Series LDP- 12- 24DC 24V dc -
REL-MR- 60DC/21/MS Phoenix Contact - - REL-MR- 60DC/21/MS 60V dc 3mA
REL-MR- 12DC/21AU/MS Phoenix Contact - - REL-MR- 12DC/21AU/MS 12V dc 14mA
REL-MR- 24DC/21/MS Phoenix Contact - - REL-MR- 24DC/21/MS 24V dc 7mA
Relay Interface for use with 39 Series Finder Separator 39 Series 93 Series - -
Relay Interface for use with Finder 500 mm Electrodes Finder Separator Finder 500 mm Electrodes 72 Series - -
Relay Interface for use with XB4R 22 mm (Dia) Control Unit, XB5R, 24 → 240V ac Schneider Electric Relay Antenna XB4R 22 mm (Dia) Control Unit, XB5R - 24 → 240V ac -
Interface Relay Module for use with Slim Relay
  • RS Stock No. 153-220
  • Brand Omron
  • Mfr. Part No. P2RVC-8-O-F
Omron Interface Slim Relay - - -
REL-MR- 60DC/21AU/MS Phoenix Contact - - REL-MR- 60DC/21AU/MS 60V dc 3mA
Interface Module for use with G2RV-SR500 Slim I/O Relay, G2RV-SR501 Slim I/O Relay, G3RV-SR500 Slim I/O Relay Omron - G2RV-SR500 Slim I/O Relay, G2RV-SR501 Slim I/O Relay, G3RV-SR500 Slim I/O Relay - - -
Interface Module for use with G2RV-SR500-AP Slim I/O Relay Omron - G2RV-SR500-AP Slim I/O Relay - - -
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