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

988 Products showing for Signal Conditioners & Isolators

6 of 50
GEORGIN 1 Channel Intrinsic Security Power Supply, ATEX
  • RS Stock No. 229-9235
  • Mfr. Part No. BXNE3700EE
1 Box of 1
SGD374.35(exc. GST)
PR Electronics 4 Series Signal Conditioner, Universal Input, Frequency Output, 19.2 → 300 V dc, 21.6 →
  • RS Stock No. 827-5511
  • Mfr. Part No. 4222
Each
SGD674.06(exc. GST)
Phoenix Contact MACX MCR Series Signal Conditioner, RTD, Potentiometer, Thermocouple, Voltage Input, Current Output, 12
  • RS Stock No. 175-0484
  • Mfr. Part No. 2908664
Each
SGD713.02(exc. GST)
GEORGIN GN 25000 Series Isolation Amplifier, Current, Voltage Input, Analogue Output
  • RS Stock No. 230-9469
  • Mfr. Part No. GN25000S
1 Box of 1
SGD253.78(exc. GST)
GEORGIN GB 64000 Series Isolation Amplifier, Current, Voltage Input, Analogue Output
  • RS Stock No. 230-9463
  • Mfr. Part No. GB64000S
1 Box of 1
SGD337.30(exc. GST)
Phoenix Contact MINI MCR-2-UI-REL-PT Series Signal Conditioner, ATEX
  • RS Stock No. 890-3875
  • Mfr. Part No. 2902035
Each
SGD322.55(exc. GST)
Phoenix Contact MACX MCR Series Signal Conditioner, Voltage Input, Current, Voltage Output, 24V dc Supply
  • RS Stock No. 171-7042
  • Mfr. Part No. 2906242
Each
SGD743.34(exc. GST)
Endress+Hauser 2 Channel Galvanic Barrier, Galvanic Barrier/Isolator, Current Input, 0/4 to 20 mA Output, SIL 2, Zone 2
  • RS Stock No. 288-6002
  • Mfr. Part No. RN22-BE1B
Each
SGD281.94(exc. GST)
Motrona IO Series Signal Converter, Strain Gauge Input, PNP Open Collector Output, 18 → 30V dc Supply
  • RS Stock No. 309-387
  • Mfr. Part No. IO221
Each
SGD481.17(exc. GST)
Phoenix Contact MINI MCR Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 9.6 → 30V
  • RS Stock No. 849-6317
  • Mfr. Part No. 2902037
Each
SGD350.14(exc. GST)
Phoenix Contact PSI Series Fibre Optic Converter, 18 → 30V dc Supply, ATEX
  • RS Stock No. 129-686
  • Mfr. Part No. 2708313
Each
SGD1,245.18(exc. GST)
Red Lion 3RS7003 Series Signal Conditioner, RS-232 Input, RS-422, RS-485 Output, 9 → 26V dc Supply
  • RS Stock No. 435-0753
  • Mfr. Part No. ICM50000
Each
SGD527.20(exc. GST)
RS PRO Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24 → 240V ac/dc Supply
  • RS Stock No. 192-3390
Each
SGD392.43(exc. GST)
PR Electronics 9200 Series Pulse Isolator, NAMUR Sensor, Switch Input, Relay Output, 19.2 → 31.2V dc Supply, ATEX
  • RS Stock No. 796-7058
  • Mfr. Part No. 9202B2A
Each
SGD307.71(exc. GST)
Eaton 1 Channel Galvanic Barrier, Current, Pluse, Voltage Input, ATEX
  • RS Stock No. 174-7911
  • Mfr. Part No. MTL5532
Each
SGD813.16(exc. GST)
Phoenix Contact 2 Channel Galvanic Barrier, Isolating Amplifier, NAMUR Sensor, Switch Input, Relay Output, ATEX
  • RS Stock No. 751-1342
  • Mfr. Part No. 2924249
Each
SGD395.63(exc. GST)
RS PRO Signal Conditioner, Current Input, Current Output
  • RS Stock No. 192-3391
Each
SGD112.54(exc. GST)
PR Electronics 4 Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 19.2 → 300 V dc,
  • RS Stock No. 136-8711
  • Mfr. Part No. 4104
Each
SGD364.74(exc. GST)
Eaton 1 Channel Zener Barrier, Switch/Proximity Detector Interface, NAMUR Sensor, Switch Input, Relay Output, ATEX
  • RS Stock No. 703-7043
  • Mfr. Part No. MTL5511/RS
Each
SGD428.24(exc. GST)
PR Electronics 5100 Series Galvanic Barrier, Current, RTD, Thermocouple, Voltage Input, Current, Voltage, Relay Output,
  • RS Stock No. 796-6994
  • Mfr. Part No. 5116B
Each
SGD944.13(exc. GST)
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