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

970 Products showing for Signal Conditioners & Isolators

1 of 49
Limited stock
Phoenix Contact EMG Series Signal Conditioning, Potentiometer Input
  • RS Stock No. 410-4724
  • Mfr. Part No. 2942124
Subtotal (1 unit)
TWD5,398.00(exc. GST)
In Stock
RS PRO BM Series Signal Conditioner, Current Input, Voltage Output, 24V dc Supply
  • RS Stock No. 466-2258
Subtotal (1 unit)
TWD4,824.00(exc. GST)
In Stock
PR Electronics 3100 Series Isolating Signal Converter, Current Input, Current Output, 16.8V dc, 31.2 V dc Supply, ATEX
  • RS Stock No. 796-7076
  • Mfr. Part No. 3103
Subtotal (1 unit)
TWD6,876.00(exc. GST)
In Stock
PR Electronics 3100 Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 16.8V dc, 31.2 V dc
  • RS Stock No. 270-1723
  • Mfr. Part No. 3109-N
Subtotal (1 unit)
TWD9,278.00(exc. GST)
In Stock
Turck 2 Channel Galvanic Barrier, Hart Communication, IECEx/ATEX
  • RS Stock No. 808-6538
  • Mfr. Part No. IM33-22EX-HI/24VDC
Subtotal (1 unit)
TWD22,791.00(exc. GST)
In Stock
PR Electronics 3100 Series Loop Powered Isolator, Current Input, Current Output, ATEX
  • RS Stock No. 796-7105
  • Mfr. Part No. 3185A2
Subtotal (1 unit)
TWD7,025.00(exc. GST)
In Stock
RS PRO LCIS-WAA Series Signal Conditioner, Voltage Input, Current/Voltage Output, 24V ac/dc Supply
  • RS Stock No. 192-3398
Subtotal (1 unit)
TWD5,697.00(exc. GST)
In Stock
Phoenix Contact MINI MCR Series Frequency Transducer, Frequency Input, Transistor Output, 24V dc Supply
  • RS Stock No. 134-8681
  • Mfr. Part No. 2902058
Subtotal (1 unit)
TWD8,774.00(exc. GST)
Temporarily out of stock
Phoenix Contact MACX MCR Series Repeater Power Supply, Current Input, Current Output, 230V ac/dc, 24 V ac/dc Supply,
  • RS Stock No. 254-4813
  • Mfr. Part No. 2865968
Subtotal (1 unit)
TWD12,988.00(exc. GST)
In Stock
Lumel P20 Series Temperature Transducer, Current Input, Analogue Output
  • RS Stock No. 173-520
  • Mfr. Part No. P20 2201008
Subtotal (1 unit)
TWD8,703.00(exc. GST)
In Stock
Eaton 2 Channel Zener Barrier, ATEX
  • RS Stock No. 783-4030
  • Mfr. Part No. MTL7789PLUS/RS
Subtotal (1 unit)
TWD9,045.00(exc. GST)
Temporarily out of stock
WAGO Jumpflex Series Signal Conditioner, RTD Input, Current Output, 30V Supply
  • RS Stock No. 135-7395
  • Mfr. Part No. 857-815
Subtotal (1 unit)
TWD14,393.00(exc. GST)
In Stock
Kubler Signal Conditioner, RS422 Input, Analogue, RS485, RS232 Output, 18V dc, 36 V dc Supply
  • RS Stock No. 200-9779
  • Mfr. Part No. 8.SK.1S1D-1A2RS
Subtotal (1 unit)
TWD24,211.00(exc. GST)
In Stock
Endress+Hauser RN22 Series Signal Conditioner
  • RS Stock No. 267-9455
  • Mfr. Part No. RN22-AA3A
Subtotal (1 unit)
TWD8,961.00(exc. GST)
In Stock
PR Electronics 3 Series Signal Conditioner, Current Input, Current Output, 35V dc, 6 V dc Supply, IECEx/ATEX
  • RS Stock No. 136-8710
  • Mfr. Part No. 3186B2
Subtotal (1 unit)
TWD8,271.00(exc. GST)
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)
TWD9,865.00(exc. GST)
In Stock
Phoenix Contact MACX MCR Series Signal Conditioner, Current Input, Current Output, 30.5V Supply, ATEX
  • RS Stock No. 122-9817
  • Mfr. Part No. 2905278
Subtotal (1 unit)
TWD8,356.00(exc. GST)
In Stock
GEORGIN GH11000 Series Signal Conditioner, Current Input, Analogue Output, 24V Supply
  • RS Stock No. 230-9466
  • Mfr. Part No. GH11010S
Subtotal (1 box of 1 unit)
TWD5,113.00(exc. GST)
New product - Preorder today
Motrona FM Series Analogue Frequency Converter, Pulse Input, Digital, Relay Output, 30V dc, 9 V dc Supply
  • RS Stock No. 309-371
  • Mfr. Part No. FM210
Subtotal (1 unit)
TWD41,696.00(exc. GST)
In Stock
Weidmüller ACT20P Series Signal Conditioner, Current Input, Current Output, 16.8V, 31.2 V Supply
  • RS Stock No. 892-8993
  • Mfr. Part No. 1510470000
Subtotal (1 unit)
TWD6,480.00(exc. GST)
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