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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Description Price Accessory Type For Use With Series Voltage Current Rating
RS Stock No. 251-9455
Mfr. Part No.2966016
MYR62.56
Each
units
- - PLC-BSC 24V dc -
RS Stock No. 494-0744
Mfr. Part No.PTML0024 5-1415036-1
MYR15.37
Each
units
Module RT78724, RT78726 - 24V dc -
RS Stock No. 666-8015
Mfr. Part No.99.02.9.024.99
BrandFinder
MYR19.96
Each
units
- - 99 Series 24V dc -
RS Stock No. 508-0203
Mfr. Part No.2833657
MYR32.53
Each
units
Plug In Module PR1 Series, PR2 Series LDP- 12- 24DC 24V dc -
RS Stock No. 827-7182
Mfr. Part No.ZBRA1
MYR1,051.37
Each
units
Relay Antenna XB4R 22 mm (Dia) Control Unit, XB5R Harmony XB5R 24 → 240V ac -
RS Stock No. 153-220
Mfr. Part No.P2RVC-8-O-F
BrandOmron
MYR185.55
Each
units
Interface Slim Relay - - -
RS Stock No. 472-9171
Mfr. Part No.3RF2950-0HA13
BrandSiemens
MYR1,502.42
Each
units
Power Controller 3RF29 - 230V ac 50A
RS Stock No. 410-8035
Mfr. Part No.2296058
MYR476.25
Each
units
- - PLC-V8/D15S/OUT 24V dc 3A
RS Stock No. 494-0700
Mfr. Part No.PTMG0024 2-1415036-1
MYR15.77
Each
units
LED Module RT Series - 24V dc -
RS Stock No. 472-9143
Mfr. Part No.3RF2950-0HA16
BrandSiemens
MYR2,165.71
Each
units
Power Controller 3RF29 - 24V dc 50A
New
RS Stock No. 203-8725
Mfr. Part No.LZS:PTMU0730
BrandSiemens
MYR40.27
Each
units
- Contactor Sirius LZS 110 → 230V ac -
RS Stock No. 776-1535
Mfr. Part No.093.60
BrandFinder
MYR8.00
Each
units
Separator 39 Series 93 Series - -
RS Stock No. 801-6277
Mfr. Part No.2885359
MYR92.69
Each
units
Power Module EMD-SL Series Monitoring Relay EMD-SL-PS-24DC - -
RS Stock No. 508-0253
Mfr. Part No.2833738
MYR39.18
Each
units
Plug In Module PR1 Series, PR2 Series LV-120-230AC/110VDC 110V dc -
RS Stock No. 801-6306
Mfr. Part No.2885731
MYR60.61
Each
units
Power Module EMD-SL Series Monitoring Relay EMD-SL-PS-120AC - -
New
RS Stock No. 203-8689
Mfr. Part No.LZS:PTMG0730
BrandSiemens
MYR26.62
Each
units
LED Module Sirius LZS LZS 110-230V -
RS Stock No. 472-9288
Mfr. Part No.3RF2920-0HA13
BrandSiemens
MYR1,706.51
Each
units
Power Controller 3RF29 - 230V ac 20A
RS Stock No. 508-0556
Mfr. Part No.2833712
MYR39.18
Each
units
Plug In Module PR1 Series, PR2 Series LV- 12- 24UC 110V dc -
RS Stock No. 192-1129
Mfr. Part No.1SNA645071R0000
BrandABB
MYR99.63
Each
units
Interface Relay - - 24V dc -
RS Stock No. 111-3086
Mfr. Part No.P2RVC-8-I-7-1
BrandOmron
MYR272.21
Each
units
- G2RV-SR700-AP Slim I/O Relay - - -
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LED status displayRelease diodeType LDP is not necessary ...
Description:
LED status displayRelease diodeType LDP is not necessary if you are using Phoenix relays REL-IR-LDP..., as the LED and the release diode are integrated into the relay itself.
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Description:
LED status displayRelease diodeType LDP is not necessary if you are using Phoenix relays REL-IR-LDP..., as the LED and the release diode are integrated into the relay itself.
Pluggable power modules for EMD series relay range. ...
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Accessories suitable for use with the Schneider Electric ...
Description:
Accessories suitable for use with the Schneider Electric RSZ series of relays.