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

979 Products showing for Signal Conditioners & Isolators

43 of 49
Temporarily out of stock
Weidmüller ACT20X Series Signal Conditioner, PNP Input, Relay Output, 19.2V, 31.2 V Supply, IECEx
  • RS Stock No. 902-8029
  • Mfr. Part No. 8965410000
Subtotal (1 unit)
SGD298.49(exc. GST)
In Stock
GEORGIN 2 Channel Intrinsic Security Power Supply, IECEx/ATEX
  • RS Stock No. 230-9436
  • Mfr. Part No. BXMT1002
Subtotal (1 box of 1 unit)
SGD785.98(exc. GST)
In Stock
Murrelektronik Limited MTW 12.4 Series Signal Conditioner, RTD Input, Current/Voltage Output
  • RS Stock No. 137-0328
  • Mfr. Part No. 44331
Subtotal (1 unit)
SGD323.23(exc. GST)
In Stock
ZDAUTO AOA Series Signal Conditioner, Analogue Output, 5V Supply
  • RS Stock No. 667-756
  • Mfr. Part No. AOA05020D3Ab
Subtotal (1 bag of 25 units)
SGD394.40(exc. GST)
In Stock
ZDAUTO AI Series Signal Conditioner, 0V dc, 5 V dc Supply
  • RS Stock No. 667-751
  • Mfr. Part No. AIA05020B3
Subtotal (1 bag of 25 units)
SGD330.30(exc. GST)
In Stock
ZDAUTO AOV Series Signal Conditioner, Analogue Output, 5V Supply
  • RS Stock No. 666-086
  • Mfr. Part No. AOV05010D3Ab
Subtotal (1 bag of 25 units)
SGD365.86(exc. GST)
In Stock
ZDAUTO AOA Series Signal Conditioner, Analogue Output, 3.3V Supply
  • RS Stock No. 666-100
  • Mfr. Part No. AOA03020D3Ab
Subtotal (1 bag of 25 units)
SGD394.40(exc. GST)
In Stock
Lumel P20 Series Temperature Transducer, Current Input, Analogue Output
  • RS Stock No. 173-520
  • Mfr. Part No. P20 2201008
Subtotal (1 unit)
SGD354.06(exc. GST)
In Stock
Red Lion 3RS7003 Series Signal Conditioner, RS232 Input, RS485, RS422 Output, 26V dc, 9 V dc Supply
  • RS Stock No. 435-0753
  • Mfr. Part No. ICM50000
Subtotal (1 unit)
SGD479.04(exc. GST)
Stocked by manufacturer
Phoenix Contact 1191 Series Signal Conditioner, Current Input, Voltage Output, 24V Supply
  • RS Stock No. 509-820
  • Mfr. Part No. 1191986
Subtotal (1 unit)
SGD664.78(exc. GST)
In Stock
Phoenix Contact 3RS70 Series Signal Conditioner, Voltage Input, Current Output, 24V Supply, ATEX
  • RS Stock No. 622-3209
  • Mfr. Part No. 2813525
Subtotal (1 unit)
SGD415.99(exc. GST)
In Stock
Motrona IO Series Signal Converter, PNP Open Collector Output, 18V dc, 30 V dc Supply
  • RS Stock No. 309-395
  • Mfr. Part No. IO223/CO
Subtotal (1 unit)
SGD517.92(exc. GST)
Stocked by manufacturer
Phoenix Contact MACX MCR Series Isolation Amplifier, 30V Supply, ATEX
  • RS Stock No. 212-7323
  • Mfr. Part No. 2924281
Subtotal (1 unit)
SGD305.73(exc. GST)
Temporarily out of stock
Endress+Hauser 2 Channel Zener Barrier, ATEX
  • RS Stock No. 316-256
  • Mfr. Part No. RN22-8L2BPA
Subtotal (1 unit)
SGD386.94(exc. GST)
Stocked by manufacturer
Phoenix Contact PSI Series Fibre Optic Converter, 24V dc Supply, ATEX
  • RS Stock No. 131-116
  • Mfr. Part No. 2708575
Subtotal (1 unit)
SGD2,629.26(exc. GST)
In Stock
ABB 2CCS400900R Series Signal Conditioner, Voltage Input, 230V dc Supply
  • RS Stock No. 288-0897
  • Mfr. Part No. 2CCS400900R0031
Subtotal (1 unit)
SGD47.22(exc. GST)
In Stock
RS PRO Analogue Converter, Current, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 606-325
Subtotal (1 unit)
SGD195.00(exc. GST)
In Stock
JM CONCEPT ULCOS 900 Series Universal Signal Converter, Resistance, Current, Temperature, Voltage, Thermocouple Input,
  • RS Stock No. 232-8253
  • Mfr. Part No. ULCOS900D1
Subtotal (1 unit)
SGD351.12(exc. GST)
Currently unavailable
Phoenix Contact FM IM Series Signal Conditioner, Voltage Input
  • RS Stock No. 801-6148
  • Mfr. Part No. 2814469
Subtotal (1 unit)
SGD258.98(exc. GST)
Currently unavailable
Murrelektronik Limited MTW 12.4 Series Signal Conditioner, 8 Bit Input, Current Output, 0V dc, 30 V dc Supply
  • RS Stock No. 137-0327
  • Mfr. Part No. 44073
Subtotal (1 unit)
SGD348.66(exc. GST)
1
43
49
Results per page

Related links