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

995 Products showing for Signal Conditioners & Isolators

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Better World
Schneider Electric Harmony Analog Series Analogue Converter, IECEx
  • RS Stock No. 221-2852
  • Mfr. Part No. RMCA61BD
Each
MYR1,359.49
Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
  • RS Stock No. 793-4275
  • Mfr. Part No. Z728
Each
MYR601.98
PR Electronics 9200 Series Pulse Isolator, NAMUR Sensor, Switch Input, Relay Output, 19.2 → 31.2V dc Supply, ATEX
  • RS Stock No. 796-7067
  • Mfr. Part No. 9202B2B
Each
MYR1,383.29
JM CONCEPT 1 Channel Galvanic Barrier, Loop Powered Isolator, Current Input, Current Output
  • RS Stock No. 232-8224
  • Mfr. Part No. JK2001
Each
MYR844.42
RS PRO Converter
  • RS Stock No. 629-500
Each
MYR900.51
GEORGIN 1 Channel Intrinsic Security Power Supply, ATEX
  • RS Stock No. 230-9442
  • Mfr. Part No. BXNE3400E2
1 Box of 1
MYR1,306.06
Motrona EV Series Module, Pulse Input, Analogue Output, 10 → 30V dc Supply
  • RS Stock No. 309-370
  • Mfr. Part No. EV228
Each
MYR2,997.13
Advantech ADAM Series Serial Converter, RS-232 Input, RS-422, RS-485 Output
  • RS Stock No. 283-8001
  • Mfr. Part No. ADAM-4520
Each
MYR682.06
PR Electronics 9200 Series Solenoid Driver, NPN, PNP Input, Relay Output, 19.2 → 31.2V dc Supply, ATEX
  • RS Stock No. 796-7060
  • Mfr. Part No. 9203B1A
Each
MYR1,554.30
Endress+Hauser 2 Channel Galvanic Barrier, Galvanic Barrier/Isolator, Current Input, 0/4 to 20 mA Output, SIL 2, Zone 2
  • RS Stock No. 288-6004
  • Mfr. Part No. RN22-8L3B
Each
MYR1,297.79
PR Electronics Signal Conditioner
  • RS Stock No. 796-7020
  • Mfr. Part No. 5909
Each
MYR1,773.54
Endress+Hauser 1 Channel Galvanic Barrier, Isolating Amplifier, NAMUR Sensor, Switch Input
  • RS Stock No. 256-6214
  • Mfr. Part No. RNO22-8M1A
Each
MYR1,157.15
PR Electronics 4100 Series Universal Transmitter, Universal Input, Current, Voltage Output, 19.2 → 300 V dc,
  • RS Stock No. 796-6887
  • Mfr. Part No. 4114
Each
MYR1,785.54
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
MYR990.18
Omron G32A-EA Series Signal Conditioner, Current Input, Current Output, 100 → 240V ac Supply
  • RS Stock No. 266-132
  • Mfr. Part No. G32A-E-VR
Each
MYR85.60
GEORGIN GN 21000 Series Repeater, Current, Voltage Input, Analogue Output
  • RS Stock No. 230-9468
  • Mfr. Part No. GN21000S
1 Box of 1
MYR1,169.46
Phoenix Contact PSI Series Fibre Optic Converter, 24V dc Supply, ATEX
  • RS Stock No. 129-683
  • Mfr. Part No. 2708368
Each
MYR3,525.86
SICK HN Series Signal Converter, SSI Input, Analogue Output
  • RS Stock No. 285-1754
  • Mfr. Part No. HN.SK20.2 / 6021449
Each
MYR4,386.87
PR Electronics 3100 Series Isolating Signal Converter, Current Input, Current Output, 16.8 → 31.2V dc Supply,
  • RS Stock No. 796-7082
  • Mfr. Part No. 3108
Each
MYR1,158.18
PR Electronics 4100 Series Universal Transmitter, Universal Input, Current, Voltage, Relay Output, 19.2 → 300 V
  • RS Stock No. 796-6884
  • Mfr. Part No. 4116
Each
MYR1,899.27
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