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

Trapped Key Interlocks for Access Control with Secondary Release Key (Stainless Steel)

Access control trapped key interlocks with a secondary release key ensures that a guard door is locked closed under normal operating conditions. Once the first key is inserted, a second key can be released (also known as a personnel key). The operator then takes the personnel key into the hazardous area to minimize the possibility of inadvertent start-up occurring. The first key remains trapped until the second key is returned.

Access control on a trapped key interlocking system refers to the method for controlling access to hazardous areas of machines and equipment. It involves granting users the ability to gain access, either in full- or part-body by following a sequential key process.

Trapped Key Interlocks are widely used in various industrial settings to safeguard workers and prevent accidents. It is a highly effective in ensuring safety protocols are strictly adhered to and that access to hazardous areas is only granted to authorized personnel.

Access control trapped key interlocks in 316 grade stainless steel are suitable for pressure washing with detergent at high temperatures. Each product is tested to IP69K, meeting the rigorous demands associated with food, beverage and pharmaceutical manufacturing.

  • Robust Design Suitable for Harsh Environments
  • Large Range of Products for Different Guard Door Types
  • No Wiring Required for Easy Installation and Maintenance
  • Spring Handle Options for Misaligned Guard Doors