Leading Manufacturer of Safety Interlock Switches and Machine Guard Safety Switch Devices for Automation and Process Safety

Trapped Key Interlocks with Dual Key (Stainless Steel)

Access control is the final stage of the Trapped Key process. It grants the user the ability to gain access to the hazardous area, either full body or part body. Access control interlocks are used to ensure that a guard or door is locked closed under normal operating conditions and can only be operated when a coded key is inserted and turned, enabling access to the machine.

When the key is inserted and turned, the interlock will open and the key will be trapped. The key cannot be removed until the guard is closed, and the key is turned back to the original position. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up. Only when the second key is returned, will the first key be released.

IDEM’s Trapped Key access locks in 316 grade stainless steel are suitable for high pressure hosing with detergent at high temperatures. The IP69K rating and the 100% mechanical operation makes them the perfect choice for applications in food, beverage and pharmaceutical manufacturing.

  • Material: 316 Grade Stainless Steel
  • IP Rating: Suitable up to IP69K

  • Trapped Key Bolt Interlock with Dual Key (SS-BD)

    Trapped Key Bolt Interlock with Dual Key (SS-BD)

    The SS-BD Trapped Key Interlock operates by using a locking bolt mechanism, which is extended when the key is removed. Inserting and turning the appropriate key retracts the bolt, releasing a personnel key and allowing access to the hazardous area. Alternatively, the SS-BD can be used for power interlocking on switchgear, directly interfering with the cam. When the key or keys are inserted, they become “trapped” in the lock, preventing the switchgear from being energized until they are released.

    • Manufactured from 316 Grade Stainless Steel
    • Holding Force up to F1Max 5000N
    • SS-BD-11: 1 Key Trapped, 1 Key Free, Bolt Retracted
    • SS-BD-20: 2 Keys Trapped, Bolt Retracted
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  • Trapped Key Spring Handle Interlock with Dual Key (SS-HD-11)

    Trapped Key Spring Handle Interlock with Dual Key (SS-HD-11)

    The SS-HD-11 Trapped Key Interlock operates by using a spring loaded handle lock mechanism, which is locked when the first key is removed. Inserting and turning the appropriate key allows the secondary key to be released, unlocking the handle and allowing access to the hazardous area. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up.

    • Material: 316 Grade Stainless Steel
    • Holding Force: F1Max 4000N
    • Ingress Protection: IP69K
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  • Trapped Key Spring Handle Interlock with Dual Key and Chain (SS-HD-11-C)

    Trapped Key Spring Handle Interlock with Dual Key and Chain (SS-HD-11-C)

    The SS-HD-11-C Trapped Key Interlock operates by using a spring loaded handle lock mechanism, which is locked when the first key is removed. Inserting and turning the appropriate key allows the secondary key to be released, unlocking the handle (which is connected to a chain) and allowing access to the hazardous area. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up.

    • Material: 316 Grade Stainless Steel
    • Holding Force: F1Max 4000N
    • Ingress Protection: IP69K
    Go to Product : Trapped Key Spring Handle Interlock with Dual Key and Chain (SS-HD-11-C)

  • Trapped Key Spring Handle Tongue Interlock with Dual Key (SS-HT-D-11)

    Trapped Key Spring Handle Tongue Interlock with Dual Key (SS-HT-D-11)

    The SS-HT-D Trapped Key Interlock operates by using a spring loaded handle lock mechanism, which is locked when the first key is removed. Inserting and turning the appropriate key allows the secondary key to be released, unlocking the handle and allowing access to the hazardous area. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up. The SS-HT-D interlock features IDEM’s anti-tamper cam system for long term proven reliability.

    • Material: 316 Grade Stainless Steel
    • Holding Force: F1Max 3000N
    • Ingress Protection: IP69K
    Go to Product : Trapped Key Spring Handle Tongue Interlock with Dual Key (SS-HT-D-11)

  • Trapped Key Tongue Interlock with Dual Key (SS-TD-11)

    Trapped Key Tongue Interlock with Dual Key (SS-TD-11)

    The SS-TD-11 Trapped Key Interlock operates by using a tongue locking mechanism, which is locked when the first key is removed. Inserting and turning the appropriate key allows the secondary key to be released, unlocking the tongue and allowing access to the hazardous area. The second key (often referred to as the personnel key) should be taken inside the hazardous area to reduce the likelihood of an inadvertent start-up.

    • Material: 316 Grade Stainless Steel
    • Holding Force: F1Max 3000N
    • Ingress Protection: IP69K
    Go to Product : Trapped Key Tongue Interlock with Dual Key (SS-TD-11)