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

988 Products showing for Signal Conditioners & Isolators

7 of 50
Advantech ADAM Series Serial Converter, RS-232 Input, RS-422, RS-485 Output
  • RS Stock No. 283-8001
  • Mfr. Part No. ADAM-4520
Each
SGD160.37(exc. GST)
Phoenix Contact 3RS7005 Series Signal Conditioner, Current, Voltage Output, 24V dc Supply, ATEX, IECEx
  • RS Stock No. 652-8425
  • Mfr. Part No. 2708863
Each
SGD851.60(exc. GST)
GEORGIN GC 52100 Series Power Supply Repeater, Current, Voltage Input, Analogue Output
  • RS Stock No. 230-9464
  • Mfr. Part No. GC52100S
1 Box of 1
SGD248.96(exc. GST)
PR Electronics 9100 Series Transparent Repeater, Current Input, Current, Relay Output, 19.2 → 31.2V dc Supply,
  • RS Stock No. 796-7032
  • Mfr. Part No. 9106B1A
Each
SGD578.17(exc. GST)
Eaton 2 Channel Zener Barrier, Switch/Proximity Detector Interface, RTD, Thermocouple Input, ATEX
  • RS Stock No. 612-5341
  • Mfr. Part No. MTL7760AC/RS
Each
SGD303.42(exc. GST)
PR Electronics 3100 Series Isolating Signal Converter, Current, Voltage Input, Current, Voltage Output, 16.8 →
  • RS Stock No. 796-7086
  • Mfr. Part No. 3109
Each
SGD430.50(exc. GST)
Idec 1 Channel Zener Barrier, Intrinsic Safety Barrier, Relay Output, ATEX
  • RS Stock No. 165-6895
  • Mfr. Part No. EB3C-R01AN
Each
SGD441.06(exc. GST)
Phoenix Contact MACX MCR Series Signal Conditioner, Voltage Input, Current, Voltage Output, 24V dc Supply
  • RS Stock No. 171-7041
  • Mfr. Part No. 2906239
Each
SGD688.49(exc. GST)
Brodersen Controls MINI MCR-2-U-U-PT Series Signal Conditioner, Frequency Input, Current, Voltage Output, 115 →
  • RS Stock No. 338-4200
  • Mfr. Part No. PXF-20.230/RS
Each
SGD226.85(exc. GST)
RS PRO Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 192-3396
Each
SGD277.90(exc. GST)
Eaton MTL Series Signal Conditioner, Voltage Input, Voltage Output
  • RS Stock No. 174-7908
  • Mfr. Part No. MTL5525
Each
SGD684.73(exc. GST)
WAGO 857 Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply, ATEX, IECEx
  • RS Stock No. 135-7389
  • Mfr. Part No. 857-400
Each
SGD684.02(exc. GST)
Siemens 3RS7020 Series Signal Conditioner, Current Input, Current Output
  • RS Stock No. 134-8056
  • Mfr. Part No. 3RS7020-1ET00
Each
SGD414.21(exc. GST)
PR Electronics 3 Series Signal Conditioner, Current Input, Current Output, 6 → 35V dc Supply, ATEX, IECEx
  • RS Stock No. 136-8710
  • Mfr. Part No. 3186B2
Each
SGD369.64(exc. GST)
Turck 2 Channel Galvanic Barrier, HART Isolating Transducer, Current Input, Current Output, ATEX, IECEx
  • RS Stock No. 808-6538
  • Mfr. Part No. IM33-22EX-HI/24VDC
Each
SGD1,163.64(exc. GST)
Endress+Hauser 2 Channel Galvanic Barrier, Isolating Amplifier, NAMUR Sensor, Switch Input, Relay Output, SIL 2, Zone 2
  • RS Stock No. 288-6548
  • Mfr. Part No. RLN22-8M2A
Each
SGD217.17(exc. GST)
Eaton MTL Series Signal Conditioner, Current, Voltage Input, Current Output, 20 → 35V dc Supply
  • RS Stock No. 144-8685
  • Mfr. Part No. MTL5546Y
Each
SGD836.37(exc. GST)
Weidmuller ACT20P Series Signal Conditioner
  • RS Stock No. 892-9003
  • Mfr. Part No. 1510390000
Each
SGD197.90(exc. GST)
PR Electronics 9100 Series Universal Converter, Universal Input, Current, Relay Output, 19.2 → 31.2V dc Supply
  • RS Stock No. 796-7042
  • Mfr. Part No. 9116B1
Each
SGD902.14(exc. GST)
Turck 2 Channel Galvanic Barrier, Analogue Input Isolator, Current, Voltage Input, Current Output, ATEX, IECEx
  • RS Stock No. 808-6548
  • Mfr. Part No. IM31-22EX-I
Each
SGD637.34(exc. GST)
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