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  • DA SYSTEMS RB007

    Innovative relay module. Functions either as a transistorised relay module or as …

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    £8.20
  • AT160 UNIVERSAL RELAY

    Operates on (approximately) 6 to 32 volts AC or 7.5 to 30 volts DC. Double pole change …

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    £9.00
  • DRYAD DEEDLOCK TOUCHSWITCH...

    Control boards for the DRYAD DEEDLOCK Touchswitch. It will work with any touchplate. …

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    £8.50
  • 24 VOLT DC 10 AMP 8 PIN...

      RS components part no. 348-784 24 volt 10 amp double pole 8-pin plug-in relays. …

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    £30.00
  • INTERFACE SOLUTIONS AC/DC...

    Operates on AC from 6 to 32 volts and DC from 7.5 to 30 volts. Double pole change …

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    £9.00
  • ac/dc 12/24 VOLT RELAY...

    The ac/dc 12/24 volt relay module has a single pair of voltage-free changeover contacts …

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    £8.83
  • ac TO dc CONVERTER MODULE...

    The ac to dc converter module is designed to convert an ac voltage supply to a dc …

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    £7.55
  • SAPPHIRE OMEGA FIRE ALARM...

    SAPPHIRE OMEGA PC2005 24 volt fire alarm relay interface board with status LED and …

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    £5.00
  • 12 VOLT dc RELAY MODULE...

    This is a 12 volt relay module with one pair of changeover contacts. Contact material …

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    £6.63
  • INTERLOCKING RELAY MODULE

    Interlocking relay module designed to stop two secured doors being opened simultaneously. …

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    £20.00
  • 24 VOLT ac/dc TO 12 VOLT dc...

    The 24v ac/dc to 12v dc converter is designed to provide a regulated 12 volt dc supply …

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    £9.66
  • VELLEMAN K4001(PACK OF 2)

    This small amplifier module is constructed around the TDA2003 IC, capable of delivering …

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    £10.00
  • 12V SMALL BASIC RELAY

    Relay coil 12 volts DC. Contacts 3 amp at 12/24 volts DC. Very compact, can be tucked …

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    £4.80
  • CASTLE CARE-TECH ZA500

    These are 4 channel transistorised relay modules with a U-relay ‘quad’ …

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    £14.50
  • ACT 2323 MAINSPIKE...

    This is an ACT mainspike suppressor providing up to 4,500 amps of suppression. Used …

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    £7.50
  • SCHAFFNER RE1-16/6 .20...

    Recommended usage for dealing with interference coming up the mains earth lead.   …

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    £6.60
  • CASTLE CARE-TECH SA030A...

    This is a small add-in timer module set at 15 minutes originally intended as a bell …

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    £5.50
  • CASTLE CARE-TECH ZA400

    These are 4 channel transistorised relay modules with a U-relay – “quad” …

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    £13.20
  • CASTLE CARE-TECH ZA300

    These are transistorised U-relays  –  double pole double throw (DPDT) contacts rated 12/24 volts at 1.25 amps maximum. Unused stock.   …

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    £7.70
  • 24 VOLT dc RELAY MODULE...

    The 24 volt dc relay module has two sets of voltage-free changeover contacts rated …

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    £8.28
  • 12V AC/DC RELAY

    This 12 volt relay will operate from either 12 volts AC or DC. It has DPDT contacts …

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    £6.00
  • FL1-E ENCAPSULATED FLASHING...

    This LED module flashes a super bright LED once a second and operates from an alkaline …

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    £8.56
  • FL1-S STANDARD FLASHING LED...

    This LED module flashes a red LED once a second and operates from an alkaline C cell …

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    £6.63
  • FL12-S 12 VOLT FLASHING LED...

    These are 12 volt flashing LED modules which operate on an exceptionally low current …

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    £9.40
  • SELF-ADHESIVE MOUNTING...

    SELF-ADHESIVE MOUNTING PILLARS For use with SS1-L and SS1-H transistorised relay modules. Quantity of 10 per pack. …

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    £2.50
  • TRANSISTORISED RELAY MODULE...

    12 volt dc supply. 2 pairs of voltage-free changeover contacts. Contacts rated 5 …

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    £9.75
  • TRANSISTORISED RELAY MODULE...

    12 volt dc supply. 2 pairs of voltage-free changeover contacts. Contacts rated 2 …

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    £8.28
  • 12V BASIC RELAY

    12V BASIC RELAY RELAY COIL 12VOLTS DC Contacts min. 5amp at 12/24volts ac/dc Used …

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    £5.94
  • ACT 230MSF 230V MAINS...

    230V MAINS FILTER Prevents unexplained false alarms and system malfunctions caused …

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    £13.20

Product Categories

  • Access Control
  • Castle Control Panels & Accessories
    • Castle Output/Expansion Modules
    • Castle Readers, Keyfobs & Keypads
  • CCTV
  • Control Panels
    • Control Panel Ancillaries
  • Collection Only Items
  • Electronic Components
  • Electronic Modules
    • Relay Modules
    • STS Own Brand Modules
  • Fire
  • id Wired Biscuits
  • Keypads
  • Locks & Keyswitches
  • Power Supplies & Transformers
  • Pyronix Control Panels & Accessories
  • Radio Equipment
  • Security Lighting
  • Sounders and Bellboxes
  • Sensors
  • Test Equipment
  • Terms and Conditions

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