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

972 Products showing for Signal Conditioners & Isolators

1 of 49
RS PRO Signal Conditioner, Current Input, Current Output, 115V ac Supply
  • RS Stock No. 466-2393
Each
PHP16,607.51(exc. VAT)
RS PRO 2 Channel Intrinsically Safe Isolator, Switch/Proximity Relay-Out Repeater, Digital Input, Voltage Output, SIL 3
  • RS Stock No. 329-088
Each
PHP15,981.78(exc. VAT)
GEORGIN 1 Channel Intrinsic Security Power Supply, ATEX
  • RS Stock No. 230-9441
  • Mfr. Part No. BXNE0500EE
1 Box of 1
PHP17,413.83(exc. VAT)
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
PHP18,432.97(exc. VAT)
RS PRO Signal Conditioner, Current Input, Relay Output, 115V ac Supply
  • RS Stock No. 629-465
Each
PHP12,719.09(exc. VAT)
Weidmüller ACT20P Series Limit Signal Transmitter, Voltage Input, Relay Output, 500V Supply
  • RS Stock No. 287-5331
  • Mfr. Part No. 7760054165
Each
PHP11,308.44(exc. VAT)
PR Electronics Universal f/I-f/f converter Series Frequency / Current Converter, Current, Frequency Input, Relay Output
  • RS Stock No. 236-3273
  • Mfr. Part No. 4225B
Each
PHP20,421.95(exc. VAT)
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
PHP21,682.51(exc. VAT)
Pepperl + Fuchs S1SD Series Signal Conditioner, Current Input, Current, Voltage Output, 16.8 → 31.2V dc Supply,
  • RS Stock No. 134-8131
  • Mfr. Part No. S1SD-1Ai-2U
Each
PHP19,061.82(exc. VAT)
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6 → 30V dc Supply, ATEX
  • RS Stock No. 134-8672
  • Mfr. Part No. 2901995
Each
PHP8,551.23(exc. VAT)
Better World
Schneider Electric Harmony Analog Series Analogue Converter, Current, Voltage Input, 24V Supply, IECEx
  • RS Stock No. 221-2854
  • Mfr. Part No. RMCN22BD
Each
PHP10,004.66(exc. VAT)
RS PRO Converter
  • RS Stock No. 629-500
Each
PHP12,024.00(exc. VAT)
PR Electronics Signal Conditioner
  • RS Stock No. 827-5378
  • Mfr. Part No. 9410
Each
PHP15,978.30(exc. VAT)
GEORGIN 1 Channel Intrinsic Security Power Supply, ATEX
  • RS Stock No. 230-9438
  • Mfr. Part No. BXNE0100E2
1 Box of 1
PHP17,413.83(exc. VAT)
JM CONCEPT JK 7000 Series Isolating Signal Converter, Potentiometer Input, Current, Voltage Output, 22 → 240 V
  • RS Stock No. 232-8231
  • Mfr. Part No. JK7000A1
Each
PHP16,625.59(exc. VAT)
GEORGIN 1 Channel Intrinsic Security Power Supply, ATEX
  • RS Stock No. 229-9234
  • Mfr. Part No. BXNE3700E2
1 Box of 1
PHP17,413.83(exc. VAT)
JM CONCEPT JK 3000 Series Isolating Signal Converter, Current, Voltage Input, Current, Voltage Output, 22 → 240
  • RS Stock No. 232-8230
  • Mfr. Part No. JK3000A2
Each
PHP18,652.38(exc. VAT)
Eaton 1 Channel Galvanic Barrier, Current, Pluse, Voltage Input, ATEX
  • RS Stock No. 174-7911
  • Mfr. Part No. MTL5532
Each
PHP37,234.92(exc. VAT)
RS PRO Signal Conditioner, Voltage Input, Current, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 192-3398
Each
PHP11,271.64(exc. VAT)
Phoenix Contact MACX MCR Series Signal Conditioner, Current Input, Current Output, 19.2 → 30V dc Supply, ATEX
  • RS Stock No. 195-4828
  • Mfr. Part No. 2905577
Each
PHP13,512.07(exc. VAT)
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