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

1016 Products showing for Signal Conditioners & Isolators

49 of 51
In Stock
Endress+Hauser RN22 Series Signal Conditioner
  • RS Stock No. 256-6208
  • Mfr. Part No. RN42-AA1AO
Subtotal (1 unit)
SGD317.47(exc. GST)
SGD317.47/unit
Stocked by manufacturer
Phoenix Contact PSI Series Fibre Optic Converter, 18V dc, 30 V dc Supply, ATEX
  • RS Stock No. 129-686
  • Mfr. Part No. 2708313
Subtotal (1 unit)
SGD1,295.73(exc. GST)
SGD1,295.73/unit
Stocked by manufacturer
Penko SGM800 Series Amplifier, Voltage Input, Digital Output, 18V dc, 32 V dc Supply
  • RS Stock No. 250-7638
  • Mfr. Part No. 7600A10014
Subtotal (1 unit)
SGD1,274.15(exc. GST)
SGD1,274.15/unit
In Stock
P.M.A CI45 Series Signal Conditioner, Universal Input, Universal Output, 18 V ac, 30 V ac, 18V dc, 31 V dc Supply
  • RS Stock No. 736-5036
  • Mfr. Part No. CI45-115-00000-000
Subtotal (1 unit)
SGD1,041.46(exc. GST)
SGD1,041.46/unit
In Stock
ZDAUTO AI Series Signal Conditioner, 0V dc, 3.3 V dc Supply
  • RS Stock No. 666-097
  • Mfr. Part No. AIA03020B3
Subtotal (1 bag of 25 units)
SGD330.30(exc. GST)
SGD330.30/bag
In Stock
RS PRO BD Series Signal Conditioner, Current Input, Current Output, 115V ac Supply
  • RS Stock No. 466-2343
Subtotal (1 unit)
SGD257.17(exc. GST)
SGD257.17/unit
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)
SGD597.80(exc. GST)
SGD597.80/box
In Stock
JM CONCEPT ULCOS 900 Series Universal Signal Converter, Current, Voltage, Thermocouple, Resistance, Temperature Input,
  • RS Stock No. 232-8255
  • Mfr. Part No. ULCOS920D0
Subtotal (1 unit)
SGD323.71(exc. GST)
SGD323.71/unit
In Stock
PR Electronics 9200 Series Signal Conditioner, Switch Input, Relay, NPN Output, 19.2V dc, 31.2 V dc Supply, IECEx/ATEX
  • RS Stock No. 270-1750
  • Mfr. Part No. 9202A1A
Subtotal (1 unit)
SGD279.35(exc. GST)
SGD279.35/unit
In Stock
Phoenix Contact MACX MCR Series Signal Conditioner, Voltage Input, Current/Voltage Output, 24V dc Supply
  • RS Stock No. 171-7043
  • Mfr. Part No. 2906243
Subtotal (1 unit)
SGD661.64(exc. GST)
SGD661.64/unit
In Stock
Phoenix Contact Galvanic Barrier, ATEX
  • RS Stock No. 768-1669
  • Mfr. Part No. 2811569
Subtotal (1 unit)
SGD721.00(exc. GST)
SGD721.00/unit
Stocked by manufacturer
Siemens 3RS7002 Series Signal Conditioner, Current Input, Current Output, 24V ac/dc Supply
  • RS Stock No. 134-8032
  • Mfr. Part No. 3RS7002-1CE00
Subtotal (1 unit)
SGD325.01(exc. GST)
SGD325.01/unit
Stocked by manufacturer
Phoenix Contact PSI Series Fibre Optic Converter, 24V dc Supply, ATEX
  • RS Stock No. 520-465
  • Mfr. Part No. 2708287
Subtotal (1 unit)
SGD1,806.61(exc. GST)
SGD1,806.61/unit
In Stock
Phoenix Contact MINI MCR Series Signal Conditioner, Voltage Input, Voltage Output, 30V dc, 9.6 V dc Supply, Group IIC,
  • RS Stock No. 849-6320
  • Mfr. Part No. 2902042
Subtotal (1 unit)
SGD263.59(exc. GST)
SGD263.59/unit
Stocked by manufacturer
Penko SGM700 Series Amplifier, Voltage Input, Digital Output, 18V dc, 32 V dc Supply
  • RS Stock No. 250-7645
  • Mfr. Part No. 7600A1982-A
Subtotal (1 unit)
SGD992.62(exc. GST)
SGD992.62/unit
Currently unavailable
Phoenix Contact MINI MCR-SL-V8-FLK 16-A Series Signal Conditioner, Voltage Input, Current Output, 20 → 30V dc
  • RS Stock No. 321-6624
  • Mfr. Part No. 2814537
Subtotal (1 unit)
SGD216.08(exc. GST)
SGD216.08/unit
In Stock
JM CONCEPT TELIS 1000 Series Isolating Signal Converter, Current/Voltage Output, 230 V ac, 90 V ac, 22V dc, 240 V dc
  • RS Stock No. 232-5972
  • Mfr. Part No. TELIS1000U1
Subtotal (1 unit)
SGD554.82(exc. GST)
SGD554.82/unit
Temporarily out of stock
Weidmüller ACT20M Series Temperature Converter, Temperature Input, Current Output, 24V dc Supply, ATEX, IECEx, FM
  • RS Stock No. 287-5476
  • Mfr. Part No. 1375500000
Subtotal (1 unit)
SGD253.76(exc. GST)
SGD253.76/unit
Stocked by manufacturer
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Profinet Output, 12V, 24 V Supply
  • RS Stock No. 240-7307
  • Mfr. Part No. 2905637
Subtotal (1 unit)
SGD682.28(exc. GST)
SGD682.28/unit
Stocked by manufacturer
Phoenix Contact MINI MCR Series Isolation Amplifier, Switch Input, Transistor Output, 24V dc Supply
  • RS Stock No. 517-803
  • Mfr. Part No. 1157854
Subtotal (1 unit)
SGD375.91(exc. GST)
SGD375.91/unit
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