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    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

    915 Products showing for Signal Conditioners & Isolators

    1 of 46
    JM CONCEPT TELIS 9000 Series Universal Signal Converter, Current, Voltage, Potentiometer Signal, Resistance,
    • RS Stock No. 268-0085
    • Mfr. Part No. TELIS9300U0
    Each
    TWD14,450.00
    Weidmuller ACT20P Series Signal Conditioner
    • RS Stock No. 892-8993
    • Mfr. Part No. 1510470000
    Each
    TWD5,920.00
    Motrona FM Series Analogue Frequency Converter, Pulse Input, Digital, Relay Output, 9 → 30V dc Supply
    • RS Stock No. 309-371
    • Mfr. Part No. FM210
    Each
    TWD35,282.00
    Kubler Signal Conditioner, HTL, RS-422, SSI, TTL Input, Analogue, RS-232, RS-485 Output, 18 → 36V dc Supply
    • RS Stock No. 200-9779
    • Mfr. Part No. 8.SK.1S1D-1A2RS
    Each
    TWD21,896.00
    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
    TWD7,616.00
    Phoenix Contact MINI MCR Series Signal Conditioner, Frequency, PWM Input, Transistor Output, 24V dc Supply, ATEX
    • RS Stock No. 134-8680
    • Mfr. Part No. 2902056
    Each
    TWD7,854.00
    Turck 1 Channel Galvanic Barrier, HART Isolating Transducer, Current Input, Current Output, ATEX, IECEx
    • RS Stock No. 808-6526
    • Mfr. Part No. IM35-11EX-HI/24VDC
    Each
    TWD14,621.00
    PR Electronics Programming Display
    • RS Stock No. 238-0641
    • Mfr. Part No. 4510
    Each
    TWD3,904.00
    Murrelektronik Limited Signal Conditioner, Current, Voltage Input, Voltage Output, 20 → 30V dc Supply
    • RS Stock No. 137-0325
    • Mfr. Part No. 3000-62004-8200010
    Each
    TWD4,432.00
    Motrona GV Series Signal Conditioner, Pulse Input, 10 → 30V dc Supply
    • RS Stock No. 309-381
    • Mfr. Part No. GV228
    Each
    TWD24,259.00
    Phoenix Contact MINI MCR-SL-U-I-O Series Signal Conditioner, Current, Voltage Output, 18 → 30V dc Supply
    • RS Stock No. 801-8951
    • Mfr. Part No. 2708614
    Each
    TWD38,705.00
    GEORGIN 2 Channel Intrinsic Security Relay, ATEX
    • RS Stock No. 230-9480
    • Mfr. Part No. RDN211002
    1 Box of 1
    TWD9,567.00
    GIC Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply
    • RS Stock No. 884-2458
    • Mfr. Part No. 2SC3D11CC3
    Each
    TWD2,518.00
    PR Electronics 2 Series Signal Conditioner, Voltage Input, Current Output, 19.2 → 28.8V dc Supply
    • RS Stock No. 827-5473
    • Mfr. Part No. 2261
    Each
    TWD18,572.00
    Weidmuller ACT20M Series Signal Conditioner
    • RS Stock No. 892-8965
    • Mfr. Part No. 1176070000
    Each
    TWD5,858.00
    Weidmuller ACT20X Series Signal Conditioner, Current, RTD, Thermocouple Input, Current Output, 19.2 → 31.2V
    • RS Stock No. 902-8044
    • Mfr. Part No. 8965480000
    Each
    TWD14,540.00
    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
    TWD16,947.00
    SICK HN Series Signal Converter, SSI Input, Analogue Output
    • RS Stock No. 285-1754
    • Mfr. Part No. HN.SK20.2
    Each
    TWD30,947.00
    PR Electronics 3100 Series Isolated Universal Converter, Universal Input, Current, Voltage Output, 16.8 → 31.2V
    • RS Stock No. 796-7095
    • Mfr. Part No. 3114
    Each
    TWD9,798.00
    Phoenix Contact 3RS7003 Series Signal Conditioner, Current Input, Voltage Output, 24V dc Supply
    • RS Stock No. 622-3215
    • Mfr. Part No. 2813538
    Each
    TWD7,663.00
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