Interface Relay Modules

Interface relay modules are special types of electrical relays that guarantee safe and reliable transmission of digital signals, crucial to the functioning of automated systems. They're used with components that are isolated from each other and, due to differences in their electric potential or voltage, cannot allow for a direct connection.

How do interface relay modules work?

Interface relay modules are provided with galvanic isolation (amplifying and isolating signals) between the receiving and final controlling systems of the relay. This helps to protect the signals from any interference. They guarantee electrical and information compatibility and also implement the required algorithms for the interaction of functional components of special control instruments.

Although general-purpose relays also have some level of isolation of the output circuits from the input circuits, this function is only secondary and not decisive. In interface relay modules, the property of galvanic isolation is decisive and has been repeatedly intensified.

What are interface relay modules used for?

Interface relay modules are used to control and protect against emergency conditions in modern power, large radio-electronic, electro physical and X-ray installations.


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Description Price Coil Voltage Minimum Input Voltage Maximum Input Voltage Contact Configuration Switching Current Mounting Type Load Current Rating Switching Voltage Load Voltage Rating Terminal Type Length Depth Series Height
RS Stock No. 813-4990
Mfr. Part No.RV8H-L-AD24
BrandIdec
$28.97
Each
units
24V ac/dc - - SPDT 6 A DIN Rail - - - Screw 88mm 6.1mm RV8H 74.2mm
RS Stock No. 788-8658
Mfr. Part No.39.11.0.024.0060
BrandFinder
$43.53
Each
units
24V ac/dc - - SPDT - DIN Rail - - 250V ac Screw 6.2mm 90.7mm 39 Series 87mm
RS Stock No. 788-8670
Mfr. Part No.39.31.0.024.0060
BrandFinder
$39.45
Each
units
24V ac/dc - - SPDT - DIN Rail - - - Screw 6.2mm 90.7mm 39 Series 94.3mm
RS Stock No. 775-5117
Mfr. Part No.1SVR405611R7100 CR-M110AC2L
BrandABB
$17.23
Each
units
110V ac - - SPDT - Plug In - - - Cage Clamp, Fork, Screw 21.2mm 27.5mm CR-M 35.6mm
RS Stock No. 434-1311
Mfr. Part No.2966906
$39.21
Each
units
12V dc - 12V dc SPDT - DIN Rail - - - Screw 80mm 6.2mm PLC-RSC- 12DC/21 94mm
RS Stock No. 154-352
Mfr. Part No.4C.02.9.012.0050SPA
BrandFinder
$33.45
Each
units
12V dc - - DPDT - DIN Rail - - - Screw 15.8mm 64.6mm 4C Series 82.9mm
RS Stock No. 623-7292
Mfr. Part No.58.34.9.024.0050SMA
BrandFinder
$58.41
Each
units
24V dc - - 4PDT - DIN Rail - - - Screw 27mm 86.9mm 58 Series 78.4mm
RS Stock No. 358-8339
Mfr. Part No.2966207
$48.10
Each
units
230V ac/dc - 230V ac SPDT - DIN Rail - - - Screw 80mm 6.2mm PLC-RSC-230UC/21 94mm
RS Stock No. 623-7242
Mfr. Part No.48.61.7.012.0050SPA
BrandFinder
$31.89
Each
units
12V dc - - SPDT - DIN Rail - - - Screw 15.8mm 75.3mm 48 Series 78.6mm
RS Stock No. 352-8832
Mfr. Part No.2966184
$42.99
Each
units
24V ac/dc - 24V ac/dc SPDT - DIN Rail - - - Screw 80mm 6.2mm PLC-RSC- 24UC/21 94mm
RS Stock No. 431-7469
Mfr. Part No.38.61.7.024.0050
BrandFinder
$39.24
Each
units
24V dc - - SPDT - DIN Rail - - - Cage Clamp 6.2mm 76mm 38 Series 93.6mm
RS Stock No. 775-5164
Mfr. Part No.1SVR405651R3100 CR-M4LS
BrandABB
$10.40
Each
units
- 16.8V 61.2V dc SPDT - PCB Mount 8A - 250V Cage Clamp, Fork, Screw 12.7mm 29.0mm - 15.7mm
RS Stock No. 623-7315
Mfr. Part No.58.34.8.024.0060SMA
BrandFinder
$47.46
Each
units
24V ac - - 4PDT - DIN Rail - - - Screw 27mm 86.9mm 58 Series 78.4mm
RS Stock No. 746-5924
Mfr. Part No.3TX7002-1FB02
BrandSiemens
$115.65
Each
units
- - - - - - - - - - - - - -
RS Stock No. 623-7163
Mfr. Part No.48.52.8.024.0060SPA
BrandFinder
$38.77
Each
units
24V ac - - DPDT - DIN Rail - - - Screw 15.8mm 75.3mm 48 Series 78.6mm
RS Stock No. 457-2773
Mfr. Part No.48.31.7.012.0050SPA
BrandFinder
$28.43
Each
units
12V dc - - SPDT - DIN Rail - - - Screw - - 48 Series -
RS Stock No. 801-8052
Mfr. Part No.2961435
$12.60
Each (In a Pack of 10)
units
24V ac - 24V ac DPDT - PCB Mount - - - Plug In 12.7mm 15.7mm REL-MR- 24AC/21-21 29mm
RS Stock No. 469-4148
Mfr. Part No.80.010.4521.0
BrandWieland
$25.40
Each
units
12V ac/dc 8.4V 13.2V ac/dc SPDT - DIN Rail - - - Screw 76mm 6.2mm flare 88mm
RS Stock No. 813-5003
Mfr. Part No.RV8H-L-AD48
BrandIdec
$35.40
Each
units
48V ac/dc - - SPDT - DIN Rail - - - Screw 88mm 6.1mm RV8H 74.2mm
RS Stock No. 711-2630
Mfr. Part No.2900299
$38.68
Each
units
24V dc - - SPDT - DIN Rail - - - Push In 94mm 6.2mm PLC-RPT-24DC/21 80mm