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. 137-0308
Mfr. Part No.51100
R 343.53
Each
units
24V dc - - SPST 8 A DIN Rail - - - - 12mm 68mm - 82mm
RS stock no. 174-3600
Mfr. Part No.2903283
R 341.84
Each
units
120V ac - - 3P-NO 10 mA DIN Rail - 440V ac - Screw 44mm 91mm - 96mm
RS stock no. 851-6562
Mfr. Part No.2900066
R 11,541.59
Each
units
- - - SPDT 1 A - - - - Screw, 37-Pin Male D-Sub 344mm 66mm UM-D37SUB/M/HC3/16DI/MR/SI/MT 126mm
RS stock no. 775-5202
Mfr. Part No.1SVR405600R3000
BrandABB
R 108.40
Each
units
230V ac - - SPDT 16 A Plug In - - - PCB Pin 35mm 35mm CR-P 54.4mm
RS stock no. 174-3536
Mfr. Part No.2909511
R 3,959.14
Each (In a Pack of 10)
units
110 V dc, 120 V ac - - DPDT 10 mA DIN Rail - 250V ac/dc - Screw 14mm 94mm - 80mm
RS stock no. 894-9417
Mfr. Part No.41.31.8.024.0000
BrandFinder
R 92.31
Each
units
24V ac - - SPDT 12 A PCB Mount - - - PCB Pin 29mm 12.6mm 41 Series 15.7mm
RS stock no. 123-2848
Mfr. Part No.58.P4.8.230.0060SMA
BrandFinder
R 499.37
Each
units
230V ac - - 4PDT 7 A DIN Rail - - - Push In 31mm 86.3mm 58 Series 95.5mm
RS stock no. 857-2036
Mfr. Part No.2904576
R 3,009.31
Each
units
- - - SPNO 1 A - - - - Push In, 14-Pin Male IDC 92.7mm 63mm VIP-8RPT-120AC/1AU/DI/PLC 109.8mm
RS stock no. 174-3515
Mfr. Part No.2910533
R 358.23
Each
units
110 V dc, 120 V ac - - SPDT 10 mA DIN Rail - 250V ac/dc - Push In 14mm 104mm - 80mm
RS stock no. 801-8239
Mfr. Part No.2967264
R 405.42
Each
units
- - 48V dc - - Chassis Mount - - - Screw 14mm 94mm - 80mm
RS stock no. 123-2831
Mfr. Part No.4C.P2.8.024.0060SPA
BrandFinder
R 368.47
Each
units
24V ac - - DPDT-2C/0 8 A DIN Rail - - - Push In 15.8mm 66.8mm 4C Series 95.5mm
RS stock no. 175-0502
Mfr. Part No.2910537
R 566.54
Each
units
24V dc - - DPDT 10 mA DIN Rail - 250V ac/dc - Push In 14mm 104mm PLC-RPT 80mm
RS stock no. 857-2301
Mfr. Part No.2321965
R 1,133.56
Each
units
- - - - 1 A - - - - Screw, 2 x 50-Pin Male IDC - - FLKM 50/DO326/S7-300 -
RS stock no. 892-8861
Mfr. Part No.1122970000
BrandWeidmuller
R 355.29
Each
units
24 → 230V ac/dc 24V ac/dc 230V ac/dc SPDT 6 A DIN Rail - - - Clamp 90mm 6.4mm TRZ 88mm
RS stock no. 711-2686
Mfr. Part No.2900317
R 235.78
Each
units
12V dc - 12V dc SPDT 10 A DIN Rail - - - Surface Mount 94mm 6.2mm PLC-RPT- 12DC/21AU 80mm
RS stock no. 613-6919
Mfr. Part No.4C.01.8.012.0060
BrandFinder
R 275.19
Each
units
12V ac - - SPDT 16 A DIN Rail - - - Screw 15.8mm 64.6mm 4C Series 82.9mm
RS stock no. 857-2326
Mfr. Part No.2322223
R 1,322.04
Each
units
- - - - 1 A DIN Rail - - - Screw, 37-Pin Female D-Sub 72.7mm 62mm VIP-3/SC/D37SUB/F/LED 69mm
RS stock no. 877-8234
Mfr. Part No.70M-OAC5
BrandGrayhill
R 164.53
Each
units
10V - - SPNO 3 A PCB Mount - - - PCB Pin 43.2mm 10.2mm 70-OAC 25.4mm
RS stock no. 446-1061
Mfr. Part No.5912423
R 6,152.45
Each
units
- - - SPDT 1 A DIN Rail - - - Screw - - VARIOFACE/F-SO4748 -
RS stock no. 857-2455
Mfr. Part No.2900110
R 3,062.01
Each
units
- - - - 1 A DIN Rail - - - Screw, 90-Pin ELCO 101.3mm 58.5mm UMK- EC90/32/EX-XOL 77mm