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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Last RS stock
Phoenix Contact MCR-S Series Current Measuring Transducer, Current Input, Current Output, 20 → 30V dc Supply
  • RS Stock No. 337-2718
  • Mfr. Part No. 2814715
Each
MYR1,820.03
Limited stock
Weidmuller ACT20X Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply
  • RS Stock No. 508-4126
  • Mfr. Part No. 8594810000
Each
MYR925.43
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6 → 30V dc Supply, ATEX,
  • RS Stock No. 849-6311
  • Mfr. Part No. 2901998
Each
MYR755.29
In Stock
Idec 1 Channel Zener Barrier, Intrinsic Safety Barrier, Relay Output, ATEX
  • RS Stock No. 165-6895
  • Mfr. Part No. EB3C-R01AN
Each
MYR1,233.68
Limited stock
PR Electronics Signal Conditioner
  • RS Stock No. 796-7020
  • Mfr. Part No. 5909
Each
MYR1,773.54
In Stock
Idec 3 Channel Zener Barrier, Intrinsic Safety Barrier, Relay Output, ATEX
  • RS Stock No. 165-6896
  • Mfr. Part No. EB3C-R03AN
Each
MYR1,209.42
In Stock
GEORGIN 2 Channel Intrinsic Security Relay, ATEX
  • RS Stock No. 230-9479
  • Mfr. Part No. RDN211000
1 Box of 1
MYR1,337.34
In Stock
Phoenix Contact MINI MCR-2-UNI-UI-2UI Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V
  • RS Stock No. 134-8669
  • Mfr. Part No. 2905026
Each
MYR1,408.80
In Stock
Kubler Frequency / Current Converter
  • RS Stock No. 181-1100
  • Mfr. Part No. 8.FT.1D-1D
Each
MYR2,790.03
In Stock
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
In Stock
Phoenix Contact FL Series Ethernet Network Islolator
  • RS Stock No. 287-7872
  • Mfr. Part No. 2902985
Each
MYR2,232.20
In Stock
Eaton MTL Series Signal Conditioner, Thermocouple Input, Current, Voltage Output
  • RS Stock No. 144-8691
  • Mfr. Part No. MTL1171
Each
MYR1,389.33
In Stock
Eaton MTL Series Signal Conditioner, Voltage Input, Voltage Output
  • RS Stock No. 174-7907
  • Mfr. Part No. MTL5581
Each
MYR1,875.80
In Stock
PR Electronics 2 Channel Galvanic Barrier, Pulse Isolator, NAMUR Sensor, Switch Input, NPN, Relay Output, ATEX
  • RS Stock No. 796-6979
  • Mfr. Part No. 5202B2
Each
MYR1,324.45
In Stock
PR Electronics 9100 Series Transparent Repeater, Current Input, Current, Relay Output, 19.2 → 31.2V dc Supply,
  • RS Stock No. 796-7032
  • Mfr. Part No. 9106B1A
Each
MYR1,949.99
In Stock
Pepperl + Fuchs 2 Channel Zener Barrier, ATEX
  • RS Stock No. 280-6608
  • Mfr. Part No. Z 960
Each
MYR1,144.62
In Stock
PR Electronics 9100 Series HART Transparent Driver, Current Input, Current, Relay Output, 19.2 → 31.2V dc Supply
  • RS Stock No. 827-5362
  • Mfr. Part No. 9107BB
Each
MYR2,376.41
In Stock
PR Electronics 2 Channel Galvanic Barrier, Pulse Isolator, Relay Output, ATEX, IECEx
  • RS Stock No. 136-8696
  • Mfr. Part No. 5202B4
Each
MYR1,508.67
Temporarily out of stock
Phoenix Contact MINI MCR Series Frequency Transducer, Frequency, PWM Input, Transistor Output, 24V dc Supply
  • RS Stock No. 134-8681
  • Mfr. Part No. 2902058
Each
MYR1,363.56
In Stock
Eaton MTL Series Signal Conditioner, Current, Voltage Input, Current Output, 20 → 35V dc Supply
  • RS Stock No. 144-8686
  • Mfr. Part No. MTL5549Y
Each
MYR3,956.30
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