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

967 Products showing for Signal Conditioners & Isolators

1 of 49
In Stock
RS PRO BD Series Signal Conditioner, Current Input, Current Output, 230 V ac, 115 V ac Supply
  • RS Stock No. 466-2393
Each
PHP16,607.51(exc. VAT)
Temporarily out of stock
Phoenix Contact MINI MCR Series Isolation Amplifier, Current/Voltage Input, Current/Voltage Output, 24 V dc Supply, C,
  • RS Stock No. 497-957
  • Mfr. Part No. 2902004
Each
PHP9,142.94(exc. VAT)
In Stock
GEORGIN GN 25000 Series Isolation Amplifier, Current/Voltage Input, Analogue Output, 24 V dc Supply
  • RS Stock No. 230-9469
  • Mfr. Part No. GN25000S
1 Box of 1
PHP12,654.07(exc. VAT)
In Stock
RS PRO LCIS-WP-WAA Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24/240 V ac/dc Supply
  • RS Stock No. 192-3390
Each
PHP19,544.83(exc. VAT)
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24 V dc Supply, ATEX
  • RS Stock No. 134-8669
  • Mfr. Part No. 2905026
Each
PHP18,432.97(exc. VAT)
In Stock
RS PRO LCIS-WAA Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24/240 V ac/dc Supply
  • RS Stock No. 192-3397
Each
PHP15,374.75(exc. VAT)
In Stock
Phoenix Contact 3RS7002 Series Signal Conditioner, Current Input, Current Output, 19.2/30 V dc Supply, ATEX
  • RS Stock No. 532-9946
  • Mfr. Part No. 2864406
Each
PHP10,543.02(exc. VAT)
Temporarily out of stock
Lumel P30H Series Signal Transducer, Current/Voltage Input, Analogue Output
  • RS Stock No. 173-532
  • Mfr. Part No. P30H 1021200M0
Each
PHP38,905.60(exc. VAT)
In Stock
RS PRO LCIS-WP-WAA Series Signal Conditioner, Current/Voltage Input, Current/Voltage Output, 24/240 V ac/dc Supply
  • RS Stock No. 192-3389
Each
PHP15,253.79(exc. VAT)
In Stock
RS PRO 2 Channel Zener Barrier, Digital, IECEx/ATEX
  • RS Stock No. 329-088
Each
PHP15,981.78(exc. VAT)
In Stock
RS PRO BD Series Signal Conditioner, Current Input, Current Output, 115 V ac Supply
  • RS Stock No. 466-2337
Each
PHP11,393.78(exc. VAT)
In Stock
PR Electronics Universal f/I-f/f converter Series Frequency/Current Converter, Frequency, Current Input, Relay Output,
  • RS Stock No. 236-3273
  • Mfr. Part No. 4225B
Each
PHP20,421.95(exc. VAT)
In Stock
RS PRO LCIS-WAA Series Signal Conditioner, Voltage Input, Current/Voltage Output, 24 V Supply
  • RS Stock No. 192-3398
Each
PHP11,271.64(exc. VAT)
In Stock
Pepperl + Fuchs S1SL Series Signal Conditioner, Current Input, Current Output, 2.2 to 30 V dc Supply, DEMKO 16 ATEX
  • RS Stock No. 134-8128
  • Mfr. Part No. S1SL-1AI-1C
Each
PHP10,746.87(exc. VAT)
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6/30 V dc Supply, ATEX
  • RS Stock No. 134-8672
  • Mfr. Part No. 2901995
Each
PHP8,551.23(exc. VAT)
In Stock
Jumo ecoTRANS Series Signal Conditioner, Temperature Input, Current/Voltage Output, 20/30 V dc Supply
  • RS Stock No. 185-340
  • Mfr. Part No. 202732/888-888-101/024
Each
PHP58,555.94(exc. VAT)
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Current/Voltage Input, Frequency Output, 20/30 V dc Supply, C, B,
  • RS Stock No. 616-8950
  • Mfr. Part No. 2864082
Each
PHP10,371.12(exc. VAT)
In Stock
GEORGIN GS 75000 Series Isolation Amplifier, Analogue Output, 24 V dc Supply
  • RS Stock No. 230-9470
  • Mfr. Part No. GS75000S
1 Box of 1
PHP16,277.04(exc. VAT)
In Stock
Solartron Metrology Signal Conditioner, Voltage Input, Current/Voltage Output, 10/30 V dc Supply
  • RS Stock No. 775-3893
  • Mfr. Part No. 911442
Each
PHP39,871.84(exc. VAT)
In Stock
Phoenix Contact 1 Channel Galvanic Barrier, Analogue, ATEX
  • RS Stock No. 751-1314
  • Mfr. Part No. 2865793
Each
PHP25,498.50(exc. VAT)
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