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

879 Products showing for Signal Conditioners & Isolators

1 of 44
PR Electronics 4 Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 19.2 → 300 V dc,
  • RS Stock No. 136-8711
  • Mfr. Part No. 4104
Each
Kr. 2 211,51(exc. VAT)
GIC Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply
  • RS Stock No. 884-2458
  • Mfr. Part No. 2SC3D11CC3
Each
Kr. 1 294,03(exc. VAT)
JM CONCEPT ULCOS 900 Series Universal Signal Converter, Current, Voltage, Potentiometer Signal, Resistance,
  • RS Stock No. 232-8255
  • Mfr. Part No. ULCOS920D0
Each
Kr. 1 942,46(exc. VAT)
PR Electronics Programming Display
  • RS Stock No. 238-0641
  • Mfr. Part No. 4510
Each
Kr. 808,46(exc. VAT)
Phoenix Contact MACX MCR-SL-RPSSI-I Series Signal Conditioner, Current Input, Current Output, 19.2 → 30V dc
  • RS Stock No. 801-6185
  • Mfr. Part No. 2865955
Each
Kr. 3 260,65(exc. VAT)
Weidmuller ACT20M Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply, ATEX
  • RS Stock No. 892-8959
  • Mfr. Part No. 1176010000
Each
Kr. 1 682,37(exc. VAT)
RS PRO Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 192-3396
Each
Kr. 1 441,56(exc. VAT)
PR Electronics 4100 Series Universal Transmitter, Universal Input, Current, Voltage, Relay Output, 19.2 → 300 V
  • RS Stock No. 796-6884
  • Mfr. Part No. 4116
Each
Kr. 2 796,16(exc. VAT)
Phoenix Contact 3RS7025 Series Signal Conditioner, Voltage Input, Voltage Output, 9.6 → 30V dc Supply
  • RS Stock No. 764-9637
  • Mfr. Part No. 2902822
Each
Kr. 1 857,95(exc. VAT)
Eaton 2 Channel Zener Barrier, Switch/Proximity Detector Interface, NAMUR Sensor, Switch Input, Relay Output, ATEX
  • RS Stock No. 703-7040
  • Mfr. Part No. MTL5516C/RS
Each
Kr. 3 559,45(exc. VAT)
Eaton 2 Channel Zener Barrier, Intrinsic Safety Barrier, ATEX
  • RS Stock No. 783-4033
  • Mfr. Part No. MTL7761AC/RS
Each
Kr. 2 434,86(exc. VAT)
Weidmuller ACT20M Series Signal Conditioner
  • RS Stock No. 892-8947
  • Mfr. Part No. 1175990000
Each
Kr. 2 452,96(exc. VAT)
PR Electronics 4100 Series Universal Transmitter, Universal Input, Current, Voltage Output, 19.2 → 300 V dc,
  • RS Stock No. 796-6887
  • Mfr. Part No. 4114
Each
Kr. 2 580,10(exc. VAT)
Turck 2 Channel Galvanic Barrier, Isolating Amplifier, NAMUR Sensor, Switch Input, Relay Output, ATEX, IECEx
  • RS Stock No. 808-6535
  • Mfr. Part No. IM1-231EX-R
Each
Kr. 4 264,03(exc. VAT)
RS PRO Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24 → 240V ac/dc Supply
  • RS Stock No. 192-3390
Each
Kr. 2 751,61(exc. VAT)
Siemens 3RS7003 Series Signal Conditioner, Current Input, Voltage Output, 24V ac/dc Supply
  • RS Stock No. 134-8037
  • Mfr. Part No. 3RS7003-1AE00
Each
Kr. 2 403,32(exc. VAT)
Weidmuller ACT20X Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply
  • RS Stock No. 508-4126
  • Mfr. Part No. 8594810000
Each
Kr. 2 223,02(exc. VAT)
Weidmüller ACT20P Series Signal Converter, Current Input, Voltage Output, 30V dc Supply, ATEX, IECEx
  • RS Stock No. 287-4696
  • Mfr. Part No. 2489740000
Each
Kr. 1 811,75(exc. VAT)
Endress+Hauser 2 Channel Galvanic Barrier, Galvanic Barrier/Isolator, Current Input, 0/4 to 20 mA Output, SIL 2, Zone 2
  • RS Stock No. 288-6557
  • Mfr. Part No. RN22-AA2B
Each
Kr. 2 323,00(exc. VAT)
Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 18V Supply
  • RS Stock No. 489-2718
  • Mfr. Part No. 2864655
Each
Kr. 4 632,16(exc. VAT)
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