Signal Conditioners & Isolators

We offer three types of control relays from a range of brands including Phoenix Contact, ABB, Siemens and Omron.

If you're looking to control temperature, voltage, current or frequency, you'll find the products within monitoring relays. For all of your signal conditioning and conversion requirements, visit our signal conditioning range.

What is a control relay?

A control relay is basically an electrically operated switch.

How does a control relay work?

They work by opening and closing a switch to allow power to flow through a coil to conduct electricity. The coil does not actually come into contact with the switch during this process.

What types of control relays are available?

The three types of control relay are as follows:

  • Impulse relay - a type of latching relay that transfers the contacts with each pulse.
  • Monitoring relay - a protective control device for monitoring and receiving input signals, and outputting an alarm signal if a threshold is reached.
  • Signal conditioning - a device that converts one type of electronic signal into another type of signal.

What are the uses of a control relay panel?

Control relay panels are used for the control and monitoring of electrical equipment such as transformers, generators and circuit breakers in industrial systems and environments.

What is the function of an undervoltage control relay?

A relay will trip the breaker circuit if it detects an abnormality. An undervoltage (UV) relay will activate if the voltage is lower than a prescribed value, and stay like that until it reaches the necessary voltage.

Signal Conditioners
Signal Conditioners
Zener & Galvanic Barriers
Zener & Galvanic Barriers

893 Products showing for Signal Conditioners & Isolators

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In Stock
RS PRO Zener Barrier, Analogue, IECEx/ATEX
  • RS Stock No. 329-085
Subtotal (1 unit)
Kr. 2 281,22(exc. VAT)
Kr. 2 281,22/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 30V dc, 9.6 V dc
  • RS Stock No. 849-6317
  • Mfr. Part No. 2902037
Subtotal (1 unit)
Kr. 3 014,55(exc. VAT)
Kr. 3 014,55/unit
In Stock
RS PRO Signal Conditioner, Current Input, Current Output
  • RS Stock No. 192-3391
Subtotal (1 unit)
Kr. 922,09(exc. VAT)
Kr. 922,09/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Frequency Input, Transistor Output, 24V dc Supply, ATEX
  • RS Stock No. 134-8680
  • Mfr. Part No. 2902056
Subtotal (1 unit)
Kr. 3 913,51(exc. VAT)
Kr. 3 913,51/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, RTD Input, Current Output, 30V dc Supply, ATEX
  • RS Stock No. 190-2099
  • Mfr. Part No. 2810308
Subtotal (1 unit)
Kr. 2 733,82(exc. VAT)
Kr. 2 733,82/unit
In Stock
PR Electronics 4 Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 300V dc Supply, Zone, EAC,
  • RS Stock No. 180-9470
  • Mfr. Part No. 4184
Subtotal (1 unit)
Kr. 2 944,66(exc. VAT)
Kr. 2 944,66/unit
Limited stock
RS PRO Signal Conditioner, Current Input, Relay Output, 10V dc, 30 V dc Supply
  • RS Stock No. 218-4453
Subtotal (1 unit)
Kr. 3 192,69(exc. VAT)
Kr. 3 192,69/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Relay Output, 24V dc Supply, ATEX
  • RS Stock No. 489-2831
  • Mfr. Part No. 2864480
Subtotal (1 unit)
Kr. 3 373,88(exc. VAT)
Kr. 3 373,88/unit
Temporarily out of stock
Weidmüller ACT20P Series Signal Converter, Voltage Input, Analogue Output, 30V dc Supply, IECEx, ATEX
  • RS Stock No. 287-5325
  • Mfr. Part No. 7760054121
Subtotal (1 unit)
Kr. 1 749,29(exc. VAT)
Kr. 1 749,29/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24V dc Supply, ATEX
  • RS Stock No. 134-8669
  • Mfr. Part No. 2905026
Subtotal (1 unit)
Kr. 4 063,72(exc. VAT)
Kr. 4 063,72/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Voltage Input, Voltage Output, 30V dc, 9.6 V dc Supply, ATEX
  • RS Stock No. 849-6358
  • Mfr. Part No. 2902066
Subtotal (1 unit)
Kr. 1 312,63(exc. VAT)
Kr. 1 312,63/unit
In Stock
WAGO 857 Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24V dc Supply, IECEx/ATEX
  • RS Stock No. 135-7389
  • Mfr. Part No. 857-400
Subtotal (1 unit)
Kr. 3 156,87(exc. VAT)
Kr. 3 156,87/unit
In Stock
Phoenix Contact Galvanic Barrier, Analogue, ATEX
  • RS Stock No. 709-9628
  • Mfr. Part No. 2865340
Subtotal (1 unit)
Kr. 3 369,31(exc. VAT)
Kr. 3 369,31/unit
In Stock
Eaton 2 Channel Zener Barrier, ATEX
  • RS Stock No. 612-5341
  • Mfr. Part No. MTL7760AC/RS
Subtotal (1 unit)
Kr. 1 976,03(exc. VAT)
Kr. 1 976,03/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Current Output, 30V dc, 8 V dc Supply, ATEX
  • RS Stock No. 764-9649
  • Mfr. Part No. 2902829
Subtotal (1 unit)
Kr. 3 743,63(exc. VAT)
Kr. 3 743,63/unit
In Stock
Eaton 2 Channel Zener Barrier, ATEX
  • RS Stock No. 783-4046
  • Mfr. Part No. MTL5561/RS
Subtotal (1 unit)
Kr. 5 517,23(exc. VAT)
Kr. 5 517,23/unit
In Stock
WAGO Jumpflex Series Signal Conditioner, Current/Voltage Input, Current Output, 24V dc Supply, IECEx/ATEX
  • RS Stock No. 180-3042
  • Mfr. Part No. 857-423
Subtotal (1 unit)
Kr. 3 288,10(exc. VAT)
Kr. 3 288,10/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 24V dc Supply, Class I, B, D T5, Div
  • RS Stock No. 532-9974
  • Mfr. Part No. 2864422
Subtotal (1 unit)
Kr. 2 945,22(exc. VAT)
Kr. 2 945,22/unit
In Stock
Eaton Galvanic Barrier, Analogue, ATEX
  • RS Stock No. 174-7911
  • Mfr. Part No. MTL5532
Subtotal (1 unit)
Kr. 5 976,74(exc. VAT)
Kr. 5 976,74/unit
In Stock
WAGO Jumpflex Series Current Measuring Transducer, Current Input, Digital, Relay Output, 24V dc Supply
  • RS Stock No. 135-7398
  • Mfr. Part No. 2857-550
Subtotal (1 unit)
Kr. 4 729,54(exc. VAT)
Kr. 4 729,54/unit
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