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

952 Products showing for Signal Conditioners & Isolators

9 of 48
Temporarily out of stock
CEWE Instruments DPT611 Series Signal Conditioning, 276 V Supply
  • RS Stock No. 559-614
  • Mfr. Part No. DPT611-155
Subtotal (1 unit)
PHP9,868.36(exc. VAT)
In Stock
JM CONCEPT Galvanic Barrier
  • RS Stock No. 232-8222
  • Mfr. Part No. JK0030A1
Subtotal (1 unit)
PHP13,237.86(exc. VAT)
Temporarily out of stock
GEORGIN Intrinsic Security Power Supply, IECEx/ATEX
  • RS Stock No. 230-9451
  • Mfr. Part No. BXNTI600E
Subtotal (1 box of 1 unit)
PHP29,677.15(exc. VAT)
Temporarily out of stock
Siemens 3RS7025 Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24/240 V ac/dc Supply
  • RS Stock No. 134-8061
  • Mfr. Part No. 3RS7025-2FW00
Subtotal (1 unit)
PHP38,637.68(exc. VAT)
In Stock
GEORGIN 1 Channel Double Zener Barrier, ATEX
  • RS Stock No. 230-9459
  • Mfr. Part No. BZG787PLUS
Subtotal (1 box of 1 unit)
PHP12,503.74(exc. VAT)
In Stock
CEWE Instruments DPT643 Series Signal Conditioning, 276 V Supply
  • RS Stock No. 559-620
  • Mfr. Part No. DPT643-12F
Subtotal (1 unit)
PHP21,479.17(exc. VAT)
In Stock
Pepperl + Fuchs 2 Channel Zener Barrier, ATEX
  • RS Stock No. 280-6585
  • Mfr. Part No. Z 787.H
Subtotal (1 unit)
PHP13,035.77(exc. VAT)
In Stock
RS PRO 1 Channel Zener Barrier, Digital, IECEx/ATEX
  • RS Stock No. 329-087
Subtotal (1 unit)
PHP12,345.14(exc. VAT)
In Stock
Pepperl + Fuchs 2 Channel Zener Barrier, ATEX
  • RS Stock No. 793-4304
  • Mfr. Part No. Z961
Subtotal (1 unit)
PHP11,942.24(exc. VAT)
In Stock
Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
  • RS Stock No. 793-4278
  • Mfr. Part No. Z728
Subtotal (1 unit)
PHP10,455.29(exc. VAT)
Temporarily out of stock
GEORGIN 1 Channel Double Zener Barrier, ATEX
  • RS Stock No. 230-9460
  • Mfr. Part No. BZG787PPLUS
Subtotal (1 box of 1 unit)
PHP11,624.00(exc. VAT)
In Stock
Motrona IO223 Series Signal Converter, PNP Open Collector Output, 18/30 V dc Supply
  • RS Stock No. 309-393
  • Mfr. Part No. IO223
Subtotal (1 unit)
PHP23,820.35(exc. VAT)
In Stock
Motrona IO Series Signal Converter, PNP Open Collector Output, 18/30 V dc Supply
  • RS Stock No. 309-387
  • Mfr. Part No. IO221
Subtotal (1 unit)
PHP23,820.35(exc. VAT)
In Stock
Motrona IO Series Signal Converter, PNP Open Collector Output, 18/30 V dc Supply
  • RS Stock No. 309-389
  • Mfr. Part No. IO221/CO
Subtotal (1 unit)
PHP24,569.67(exc. VAT)
In Stock
Motrona IO Series Signal Converter, PNP Open Collector Output, 18/30 V dc Supply
  • RS Stock No. 309-395
  • Mfr. Part No. IO223/CO
Subtotal (1 unit)
PHP24,569.67(exc. VAT)
In Stock
GEORGIN 1 Channel Double Zener Barrier, ATEX
  • RS Stock No. 230-9453
  • Mfr. Part No. BZG756AC
Subtotal (1 box of 1 unit)
PHP11,712.64(exc. VAT)
In Stock
Siemens 3RS7003 Series Signal Conditioner, Current Input, Current Output, 24 V ac/dc Supply
  • RS Stock No. 134-8040
  • Mfr. Part No. 3RS7003-1DE00
Subtotal (1 unit)
PHP18,382.39(exc. VAT)
In Stock
CEWE Instruments DPT711 Series Signal Conditioning, 276 V Supply
  • RS Stock No. 559-617
  • Mfr. Part No. DPT711-15F
Subtotal (1 unit)
PHP16,255.31(exc. VAT)
Temporarily out of stock
Metz-Connect Signal Conditioner, Analogue Output, 10 V dc Supply
  • RS Stock No. 640-033
  • Mfr. Part No. 110501
Subtotal (1 unit)
PHP11,923.23(exc. VAT)
Temporarily out of stock
Siemens 3RS7006 Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24/240 V ac/dc Supply
  • RS Stock No. 134-8053
  • Mfr. Part No. 3RS7006-1FW00
Subtotal (1 unit)
PHP38,330.50(exc. VAT)
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