Trapped Key Interlocks

Trapped Key Interlocks are used to dictate the process for isolating or working with any type of energy. Mechanical Interlocks are used to protect both personel and equipment by eliminating errors when working with dangerous processes or equipment. Enclosure Solutions has both a local and imported range of both door and valve interlocks available in brass and 304 stainless steel.

  • HST-K
    Available
    HST-K

    STAINLESS STEEL INTERLOCK KEY  Manufactured from stainless steel the keys are coded so that they only fit the lock for which they are intended thus ensuring a high degree of safety. The user selects an engraving for the key that is of relevant to them. This appears on the key, the respective lock and its dust-cap.

    STAINLESS STEEL INTERLOCK KEY  Manufactured from stainless steel the keys are coded so...

    STAINLESS STEEL INTERLOCK KEY  Manufactured from stainless steel the keys are coded so that they only fit the lock for which they are intended thus ensuring a high degree of...

  • (HST-LS) Switchgear Interlocks
    Available
    (HST-LS) Switchgear...

    STAINLESS STEEL SWITCHGEAR INTERLOCKS  The common usage for the HST-LS interlock is to either lock 'ON' or 'OFF' electrical switchgear/control units. The standard unit is fitted with a 9.5mm square x 48.5mm long shaft that can utilise actuating levers or specific switchgear adaptors to operate motor or rotary handled isolators. Turning the key moves the shaft through 90 degrees isolating the supply and releasing the key. Manufactured of...

    STAINLESS STEEL SWITCHGEAR INTERLOCKS  The common usage for the HST-LS interlock is to...

    STAINLESS STEEL SWITCHGEAR INTERLOCKS  The common usage for the HST-LS interlock is to either lock 'ON' or 'OFF' electrical switchgear/control units. The standard unit is fitted...

  • (HST-B) Single & Dual Key Bolt Interlocks
    Available
    (HST-B) Single &...

    STAINLESS STEEL BOLT INTERLOCKS The HST-B range can be used to lock 'ON' or 'OFF' electrical switchgear circuit breakers, disconnectors and earthing devices by extended the bolt into a corresponding slot in a cam connected to the switchgear operating handle or toggle. Only when the switchgear is in the desired position can you release the key. Variations include single or double key units, orientation of the housing (left or right), bolt...

    STAINLESS STEEL BOLT INTERLOCKS The HST-B range can be used to lock 'ON' or 'OFF'...

    STAINLESS STEEL BOLT INTERLOCKS The HST-B range can be used to lock 'ON' or 'OFF' electrical switchgear circuit breakers, disconnectors and earthing devices by extended the bolt...

  • (HST-S) Control Switches
    Available
    (HST-S) Control Switches

    STAINLESS STEEL SWITCH LOCK  The HST-S range of switches are used for isolating machinery, after the voltage has been removed via a switch which is directly controlled by the key movement the previously trapped key can be withdrawn and used to continue on in an interlocking sequence. Whilst the key is released the machine is 'OFF' and in a safe condition. The HST-S units are available with multiple lock portions, varying switches for...

    STAINLESS STEEL SWITCH LOCK  The HST-S range of switches are used for isolating...

    STAINLESS STEEL SWITCH LOCK  The HST-S range of switches are used for isolating machinery, after the voltage has been removed via a switch which is directly controlled by the...

  • (HST-M) Solenoid Released Control Switches
    Available
    (HST-M) Solenoid...

    STAINLESS STEEL SOLENOID LOCKS  The HST-M range of solenoid controlled trapped key interlock switches are designed to control access to machines with run down times or when access to a safety door needs to be controlled by the Safety PLC. When the key is removed the power to the machine is isolated via a switch which is directly controlled by the key movement. This movement can however only commence when a signal has been sent from a control...

    STAINLESS STEEL SOLENOID LOCKS  The HST-M range of solenoid controlled trapped key...

    STAINLESS STEEL SOLENOID LOCKS  The HST-M range of solenoid controlled trapped key interlock switches are designed to control access to machines with run down times or when...

  • (HST-MTD) Mechanical Time Delay Units
    Available
    (HST-MTD) Mechanical...

    STAINLESS STEEL MECHANICAL DELAY SWITCH The HST-MTD range of time delay units are designed to control access to machines with run-down times. In normal running condition the secondary keys are trapped in the unit, to release theses a primary key needs to be inserted and trapped. After inserting the primary key a pre-set timer runs down allowing the secondary keys to be withdrawn. The primary key remains trapped until all secondary keys have...

    STAINLESS STEEL MECHANICAL DELAY SWITCH The HST-MTD range of time delay units are...

    STAINLESS STEEL MECHANICAL DELAY SWITCH The HST-MTD range of time delay units are designed to control access to machines with run-down times. In normal running condition the...

  • (HST-TS) Single & Dual Key Access Interlocks
    Available
    (HST-TS) Single &...

    STAINLESS STEEL ACCESS INTERLOCKS  The HST-TS access interlock comprises a lock and locking bolt element and can be used on sliding or hinged doors. Single key units (HST-TS1) are designed for part body access whilst the dual key versions (HST-TS2) are used for full body access when a personnel key is required. For ease of mounting the HST-TS range is available in different housing orientations (left or right) and with either front or rear...

    STAINLESS STEEL ACCESS INTERLOCKS  The HST-TS access interlock comprises a lock and...

    STAINLESS STEEL ACCESS INTERLOCKS  The HST-TS access interlock comprises a lock and locking bolt element and can be used on sliding or hinged doors. Single key units (HST-TS1)...

  • (HST-TZ) Single & Dual Key Slam Access Interlocks
    Available
    (HST-TZ) Single &...

    STAINLESS STEEL SLAM INTERLOCKS  The HST-TZ door interlock comprises a lock and slam-type locking catch mechanism. Inserting and trapping the key releases the catch allowing the guard to open. Locking the guard is done in reverse fashion with the catch being inserted by pushing the guard closed and turning the key. Single key units (HST- TZ1) are designed for part body access whilst the dual key versions (HST-TZ2) are used for full body access...

    STAINLESS STEEL SLAM INTERLOCKS  The HST-TZ door interlock comprises a lock and...

    STAINLESS STEEL SLAM INTERLOCKS  The HST-TZ door interlock comprises a lock and slam-type locking catch mechanism. Inserting and trapping the key releases the catch allowing the...

  • (HST-WA) Key Exchange Boxes
    Available
    (HST-WA) Key Exchange...

    STAINLESS STEEL EXCHANGE BOXES The HST-WA range of exchange boxes are used to increase the number of keys available in an interlocking sequence. The operating principle is such that no secondary keys can be removed from the unit until all primary keys have been inserted and trapped. The primary keys remain trapped until all secondary keys have been returned. HST-WA key exchange boxes are available in every possible combination of primary and...

    STAINLESS STEEL EXCHANGE BOXES The HST-WA range of exchange boxes are used to increase...

    STAINLESS STEEL EXCHANGE BOXES The HST-WA range of exchange boxes are used to increase the number of keys available in an interlocking sequence. The operating principle is such...

  • The HSV-R multi rotation valve interlock
    Available
    The HSV-R multi...

    HAAKE STAINLESS STEEL VALVE INTERLOCK The HSV-R multi rotation valve interlock kit is suitable for all types and sizes of hand wheel-operated gate, globe and gearbox valves. With both linear keys inserted into the lock the valve can be operated. Only when the valve is fully opened or closed can one of the keys be released, locking the valve in open or closed position. Summary of key features: Manufactured from stainless steel AISI 316 A hand...

    HAAKE STAINLESS STEEL VALVE INTERLOCK The HSV-R multi rotation valve interlock kit is...

    HAAKE STAINLESS STEEL VALVE INTERLOCK The HSV-R multi rotation valve interlock kit is suitable for all types and sizes of hand wheel-operated gate, globe and gearbox valves....

  • The HSV-Q valve interlock for lever operated valves
    Available
    The HSV-Q valve...

    HAAKE STAINLESS STEEL VALVE INTERLOCKS  The HSV-Q valve interlock kit for lever operated valves can be installed on any type and size of valve that operates with a 90° or 180° rotation i.e. ball, butterfly and plug valves. With both linear keys inserted into the lock the valve can be operated. Only when the valve is fully opened or closed can one of the keys be released, locking the valve in opened or closed position Summary of key features:...

    HAAKE STAINLESS STEEL VALVE INTERLOCKS  The HSV-Q valve interlock kit for lever...

    HAAKE STAINLESS STEEL VALVE INTERLOCKS  The HSV-Q valve interlock kit for lever operated valves can be installed on any type and size of valve that operates with a 90° or 180°...

  • The HSV anti tamper valve interlock
    Available
    The HSV anti tamper...

    HAAKE STAINLESS STEEL ANTI TAMPER VALVE INTERLOCK  The HSV anti tamper valve interlock kit has been specifically designed to prevent unauthorised operation, violation and sabotage of any size and type of valve including ball, butterfly, gate, globe, gear box, lever or hand wheel operated. In addition the AT includes a case hardened skirt to protect the lower valve assembly from sabotage or tampering. With the coded key removed the ATL lock...

    HAAKE STAINLESS STEEL ANTI TAMPER VALVE INTERLOCK  The HSV anti tamper valve interlock...

    HAAKE STAINLESS STEEL ANTI TAMPER VALVE INTERLOCK  The HSV anti tamper valve interlock kit has been specifically designed to prevent unauthorised operation, violation and...