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

963 Products showing for Signal Conditioners & Isolators

10 of 49
In Stock
Weidmüller ACT20C Series Signal Transducer, Current Input, Relay, Analogue Output, 10V Supply, DNV GL
  • RS Stock No. 287-5521
  • Mfr. Part No. 1510420000
Subtotal (1 unit)
TWD11,835.00(exc. GST)
TWD11,835.00/unit
In Stock
ZDAUTO BOT Series Signal Conditioner, Digital Output, 5V Supply
  • RS Stock No. 666-092
  • Mfr. Part No. BOT05750D1b
Subtotal (1 bag of 25 units)
TWD4,644.00(exc. GST)
TWD4,644.00/bag
In Stock
Vega VEGATRENN 141 Series Galvanic Isolator, Current Input, 230 V, 65V ac Supply
  • RS Stock No. 227-0464
  • Mfr. Part No. TRENN141.ACXXKBX
Subtotal (1 unit)
TWD8,204.00(exc. GST)
TWD8,204.00/unit
In Stock
Weidmüller ACT20P Series Signal Converter, Voltage Input, Analogue Output, 30V dc Supply, IECEx, ATEX
  • RS Stock No. 287-5325
  • Mfr. Part No. 7760054121
Subtotal (1 unit)
TWD7,051.00(exc. GST)
TWD7,051.00/unit
Stocked by manufacturer
Endress+Hauser Galvanic Barrier, Zone 2
  • RS Stock No. 288-6007
  • Mfr. Part No. RN42-BE1AU
Subtotal (1 unit)
TWD8,740.00(exc. GST)
TWD8,740.00/unit
In Stock
Turck 2 Channel Galvanic Barrier, IECEx/ATEX
  • RS Stock No. 808-6548
  • Mfr. Part No. IM31-22EX-I
Subtotal (1 unit)
TWD16,251.00(exc. GST)
TWD16,251.00/unit
In Stock
WAGO 857 Series Signal Conditioner, Current Input, Current/Voltage Output, 24V dc Supply, ATEX, IECEx
  • RS Stock No. 279-2529
  • Mfr. Part No. 857-550
Subtotal (1 unit)
TWD10,849.00(exc. GST)
TWD10,849.00/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)
TWD12,265.00(exc. GST)
TWD12,265.00/unit
In Stock
Motrona IX Series Indicator, 30V Supply, EN IEC 63000
  • RS Stock No. 719-390
  • Mfr. Part No. IX355
Subtotal (1 unit)
TWD17,296.00(exc. GST)
TWD17,296.00/unit
Stocked by manufacturer
Phoenix Contact MCR Series Current Transformer
  • RS Stock No. 175-0485
  • Mfr. Part No. 2864671
Subtotal (1 unit)
TWD1,159.00(exc. GST)
TWD1,159.00/unit
In Stock
PR Electronics 2 Channel Galvanic Barrier, ATEX
  • RS Stock No. 796-6954
  • Mfr. Part No. 5104BB
Subtotal (1 unit)
TWD19,542.00(exc. GST)
TWD19,542.00/unit
In Stock
Pepperl + Fuchs 2 Channel Zener Barrier, ATEX
  • RS Stock No. 280-6585
  • Mfr. Part No. Z 787.H
Subtotal (1 unit)
TWD5,555.00(exc. GST)
TWD5,555.00/unit
Stocked by manufacturer
Phoenix Contact Signal Conditioner, ATEX
  • RS Stock No. 217-6414
  • Mfr. Part No. 2924113
Subtotal (1 unit)
TWD7,327.00(exc. GST)
TWD7,327.00/unit
Stocked by manufacturer
Phoenix Contact Signal Conditioner, ATEX, IECEx
  • RS Stock No. 122-9823
  • Mfr. Part No. 2906155
Subtotal (1 unit)
TWD11,150.00(exc. GST)
TWD11,150.00/unit
In Stock
PR Electronics Universal f/I-f/f converter Series Frequency/Current Converter, Current, Frequency Input, Analogue
  • RS Stock No. 236-3276
  • Mfr. Part No. 4225C
Subtotal (1 unit)
TWD11,449.00(exc. GST)
TWD11,449.00/unit
In Stock
Red Lion IAMA Series Isolated Universal Converter, Linear Resistance, Voltage, Current, Potentiometer, RTD, Thermocouple
  • RS Stock No. 276-9858
  • Mfr. Part No. IAMA0001
Subtotal (1 unit)
TWD13,516.00(exc. GST)
TWD13,516.00/unit
Stocked by manufacturer
Phoenix Contact PLC-INTERFACE Series Switching Amplifier, Voltage Input, 24V dc Supply
  • RS Stock No. 567-272
  • Mfr. Part No. 1395229
Subtotal (1 unit)
TWD1,200.00(exc. GST)
TWD1,200.00/unit
In Stock
Pepperl + Fuchs S1SD Series Signal Conditioner, Current Input, Current Output, 16.8V dc, 31.2 V dc Supply, DEMKO 16 ATEX
  • RS Stock No. 134-8126
  • Mfr. Part No. S1SD-1Ai-1C.H
Subtotal (1 unit)
TWD5,555.00(exc. GST)
TWD5,555.00/unit
In Stock
Eaton Zener Barrier, ATEX
  • RS Stock No. 783-4043
  • Mfr. Part No. MTL5582/RS
Subtotal (1 unit)
TWD24,657.00(exc. GST)
TWD24,657.00/unit
In Stock
Schneider Electric Harmony Analog Series Analogue Converter, Current/Voltage Input, Current/Voltage Output, 24V Supply,
  • RS Stock No. 221-2853
  • Mfr. Part No. RMCL55BD
Subtotal (1 unit)
TWD7,926.00(exc. GST)
TWD7,926.00/unit
1
10
49
Results per page

Related links

Be the first to know about our latest products and offers

Email address

The personal information you provide to us when signing up to this mailing list will be processed in line with the Privacy Policy