Safety Interlocks are a type of specialist safety equipment for machinery that prevents access to dangerous parts of the machine when in use. Alternatively, they can be used to ensure the machine cannot be activated when an access hatch or safety feature is removed. The safety interlock is comprised of two parts, the main part is the locking mechanism which is connected to the machine’s operating interface, usually a PLC (programable logic controller). This is able to tell the system when a door, access hatch or safety feature is open or closed. The second part is attached to the moveable side of the door or hatch and can be locked into the locking mechanism by a variety of different methods, usually a spring lock or solenoid lock with each type offering multiple different locking forces.
The HS1L series of interlock switches from IDEC are type 2 low level coded switches available with up to 6 contacts allowing door open, closed and locked status monitoring. The HS1L series is available in spring lock or solenoid lock variations and offers a locking force of 3000N.View Product
The HS5D series of interlock switches from IDEC are type 2 low level coded switches available with 3 contacts incorporating dual enabling contacts and a monitor contact. Offering a higher amperage of up to 10A and designed with a double insulated structure thereby eliminating the need for grounding the HS5D stands apart from other interlocks of a similar size.View Product
The HS7A series of non-contact interlock switches from IDEC can achieve category 3 or category 4 compliance when paired with the IDEC HR1S safety module. The HS7A series has the ability to connect up to 36 units together with category 3 been achieved when connecting two or more interlock switches to a single input. Alternatively, category 4 can be achieved by connecting a single non-contact interlock switch to a single input.View Product