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

963 Products showing for Signal Conditioners & Isolators

12 of 49
Temporarily out of stock
Weidmüller ACT20X Series Signal Conditioner
  • RS Stock No. 902-8057
  • Mfr. Part No. 1160650000
Subtotal (1 unit)
TWD1,496.00(exc. GST)
TWD1,496.00/unit
In Stock
Eaton MTL Series Signal Conditioner, Current Input, Current/Voltage Output, 18V dc, 32 V dc Supply
  • RS Stock No. 144-8688
  • Mfr. Part No. MTL1142
Subtotal (1 unit)
TWD7,980.00(exc. GST)
TWD7,980.00/unit
In Stock
RS PRO Relay, Current/Voltage Input, 5V Supply
  • RS Stock No. 325-335
Subtotal (1 unit)
TWD22.00(exc. GST)
TWD22.00/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 30V dc, 9.6 V dc Supply, ATEX
  • RS Stock No. 134-8674
  • Mfr. Part No. 2901997
Subtotal (1 unit)
TWD7,469.00(exc. GST)
TWD7,469.00/unit
In Stock
Phoenix Contact Galvanic Barrier, Analogue, ATEX
  • RS Stock No. 709-9628
  • Mfr. Part No. 2865340
Subtotal (1 unit)
TWD7,508.00(exc. GST)
TWD7,508.00/unit
In Stock
Weidmüller ACT20P Series Signal Converter, Current Input, Current Output, 30V Supply, IECEx, ATEX
  • RS Stock No. 287-5324
  • Mfr. Part No. 7760054119
Subtotal (1 unit)
TWD7,051.00(exc. GST)
TWD7,051.00/unit
In Stock
Eaton MTL Series Signal Conditioner, Voltage Input, Voltage Output, 20V dc, 35 V dc Supply, Zone 0, IIC, T4 to 6, Group
  • RS Stock No. 174-7908
  • Mfr. Part No. MTL5525
Subtotal (1 unit)
TWD10,436.00(exc. GST)
TWD10,436.00/unit
In Stock
Phoenix Contact MACX MCR Series Signal Conditioner, Current Input, Current Output, 30.5V Supply, ATEX
  • RS Stock No. 122-9819
  • Mfr. Part No. 2905280
Subtotal (1 unit)
TWD15,807.00(exc. GST)
TWD15,807.00/unit
In Stock
Endress+Hauser Power Supply Repeater, ATEX, IECEx
  • RS Stock No. 267-9457
  • Mfr. Part No. RNO22-8M1B
Subtotal (1 unit)
TWD9,412.00(exc. GST)
TWD9,412.00/unit
In Stock
ZDAUTO AI Series Signal Conditioner, 5V Supply
  • RS Stock No. 667-753
  • Mfr. Part No. AIP05600B3
Subtotal (1 bag of 25 units)
TWD15,694.00(exc. GST)
TWD15,694.00/bag
In Stock
EYC EYC DPT02 Series Signal Conditioner, Universal Input, Current/Voltage Output, 253V ac, 85 V ac Supply
  • RS Stock No. 144-1337
  • Mfr. Part No. DPT02-A
Subtotal (1 unit)
TWD6,491.00(exc. GST)
TWD6,491.00/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Resistance Input, Current/Voltage Output, 30V dc, 9.6 V dc Supply,
  • RS Stock No. 849-6399
  • Mfr. Part No. 2902017
Subtotal (1 unit)
TWD7,459.00(exc. GST)
TWD7,459.00/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 30V dc, 9.6 V dc Supply, IECEx, ATEX
  • RS Stock No. 849-6311
  • Mfr. Part No. 2901998
Subtotal (1 unit)
TWD5,755.00(exc. GST)
TWD5,755.00/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, RTD Input, Current/Voltage Output, 30V dc, 9.6 V dc Supply, ATEX,
  • RS Stock No. 849-6342
  • Mfr. Part No. 2902049
Subtotal (1 unit)
TWD7,195.00(exc. GST)
TWD7,195.00/unit
In Stock
Phoenix Contact MCR-SLP Series Current Measuring Transducer, Current Input, Current Output
  • RS Stock No. 302-6077
  • Mfr. Part No. 2814359
Subtotal (1 unit)
TWD10,212.00(exc. GST)
TWD10,212.00/unit
Stocked by manufacturer
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Voltage Output, 30V dc, 9.6 V dc Supply, UL, D T6,
  • RS Stock No. 849-6383
  • Mfr. Part No. 2902003
Subtotal (1 unit)
TWD5,069.00(exc. GST)
TWD5,069.00/unit
In Stock
Phoenix Contact MINI MCR Series Configurable Transducer, Resistance Input, Current/Voltage Output, 30V dc, 9.6 V dc
  • RS Stock No. 849-6349
  • Mfr. Part No. 2902016
Subtotal (1 unit)
TWD7,459.00(exc. GST)
TWD7,459.00/unit
Temporarily out of stock
PR Electronics 3100 Series Isolating Signal Converter, Current/Voltage Input, Current/Voltage Output, 16.8V dc, 31.2 V
  • RS Stock No. 796-7070
  • Mfr. Part No. 3104
Subtotal (1 unit)
TWD7,673.00(exc. GST)
TWD7,673.00/unit
In Stock
Phoenix Contact 1329 Series Signal Conditioner, 48V Supply
  • RS Stock No. 497-815
  • Mfr. Part No. 1329820
Subtotal (1 unit)
TWD9,464.00(exc. GST)
TWD9,464.00/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Thermocouple Input, Current/Voltage Output, 30V dc, 9.6 V dc Supply,
  • RS Stock No. 849-6345
  • Mfr. Part No. 2902055
Subtotal (1 unit)
TWD7,287.00(exc. GST)
TWD7,287.00/unit
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