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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

    1004 Products showing for Signal Conditioners & Isolators

    1 of 51
    PR Electronics 3100 Series Signal Conditioner, Current Input, Current Output, 16.8 → 31.2V dc Supply, ATEX, IECEx
    • RS Stock No. 270-1719
    • Mfr. Part No. 3103-N
    Each
    €166.10
    Pepperl + Fuchs S1SD Series Signal Conditioner, RTD, Potentiometer, Thermocouple, Voltage Input, Current, Voltage
    • RS Stock No. 134-8134
    • Mfr. Part No. S1SD-1TI-1U
    Each
    €240.52
    Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6 → 30V dc Supply, ATEX
    • RS Stock No. 134-8672
    • Mfr. Part No. 2901995
    Each
    €158.96
    Kubler Signal Conditioner, HTL, RS-422 Input, HTL, RS-422, TTL Output, 12 → 30V dc Supply
    • RS Stock No. 181-1094
    • Mfr. Part No. 8.SP.2D-2D
    Each
    €383.53
    WAGO Signal Conditioner, Current, Voltage Input, Digital, Relay Output, 24V dc Supply
    • RS Stock No. 135-7390
    • Mfr. Part No. 857-531
    Each
    €174.24
    Phoenix Contact MINI MCR Series Signal Conditioner, Voltage Input, Current, Voltage Output, 9.6 → 30V dc Supply,
    • RS Stock No. 134-8691
    • Mfr. Part No. 2902064
    Each
    €161.17
    RS PRO Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 16.8 → 30V Supply
    • RS Stock No. 794-8574
    Each
    €270.96
    PR Electronics 3 Series Signal Conditioner, Current Input, Current Output, 6 → 35V dc Supply, ATEX, IECEx
    • RS Stock No. 136-8709
    • Mfr. Part No. 3186B1
    Each
    €135.30
    PR Electronics 3100 Series Current Isolator, Current Input, Current Output, 6 → 35V dc Supply
    • RS Stock No. 796-7118
    • Mfr. Part No. 3186A2
    Each
    €200.20
    RS PRO Signal Conditioner, Current Input, Voltage Output, 24V dc Supply
    • RS Stock No. 466-2258
    Each
    €151.05
    Phoenix Contact MINI MCR Series Signal Conditioner, Current Input, Current Output, 9.6 → 30V dc Supply
    • RS Stock No. 849-6361
    • Mfr. Part No. 2901999
    Each
    €168.10
    Crouzet Signal Conditioner, Thermocouple Input, Voltage Output, 24V dc Supply
    • RS Stock No. 509-1073
    • Mfr. Part No. 88950155
    Each
    €105.76
    ICP-DAS 7000 Series Series Interface Converter, RS-232 Input, RS-485 Output
    • RS Stock No. 283-7489
    • Mfr. Part No. I-7520 CR
    Each
    €89.00
    Pepperl + Fuchs 1 Channel Zener Barrier, ATEX
    • RS Stock No. 793-4275
    • Mfr. Part No. 261542
    Each
    €109.08
    Eaton 1 Channel Zener Barrier, Intrinsic Safety Barrier, Digital Output, ATEX
    • RS Stock No. 612-5313
    • Mfr. Part No. MTL7728+/RS
    Each
    €129.00
    Seneca Z109REG2-1 Series Universal Converter, Current, Linear Resistance, Potentiometer, Pulse, RTD, Thermocouple,
    • RS Stock No. 285-8806
    • Mfr. Part No. Z109REG2-1
    Each
    €186.30
    Pepperl + Fuchs S1SD Series Signal Conditioner, Current Output, 16.8 → 31.2V dc Supply, ATEX, IECEx
    • RS Stock No. 134-8138
    • Mfr. Part No. S1SD-2PF
    Each
    €92.68
    Phoenix Contact MINI MCR Series Signal Conditioner, Current, Voltage Input, Current Output, 8 → 30V dc Supply,
    • RS Stock No. 134-8677
    • Mfr. Part No. 2902061
    Each
    €202.02
    Murrelektronik Limited Signal Conditioner, Frequency Input, Current, Voltage Output, 10 → 30V dc Supply
    • RS Stock No. 137-0331
    • Mfr. Part No. 44275
    Each
    €197.89
    Phoenix Contact MINI MCR Series Signal Conditioner, Current, Voltage Input, Current, Voltage Output, 24V dc Supply, ATEX
    • RS Stock No. 134-8670
    • Mfr. Part No. 2905028
    Each
    €307.58
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