Download document () of 20
Send email
Download
You have exceeded the download limit
A Safety Interlock Switch is able to reliably monitor and protect protective guards, doors and covers. Keys or coded actuators make the devices especially tamper-proof. Compliance with various standards makes the devices ideal for integration into machine development processes in line with international machinery safety requirements.
Non-Contact interlock switches were specifically developed for monitoring protective covers such as doors, flaps and covers. The potential-free contacts are controlled by multiple magnets in the actuator, which makes the devices especially tamper-proof.
The assembly comprises a sensor component and a separate magnet actuator component. The sensor is typically mounted to a stationary portion of a structure and the magnet to a movable portion. When the sensor and the actuator are within operating range, the NC contacts will be closed and the NO contacts will be open.
For Key Interlock and Safety Limit Switches, two different principles of operation ensure the mechanical securing action: magnetic-force interlocking (open-circuit principle) and spring-force interlocking (closed-circuit principle).
Key Interlock switches are designed with two parts— the sensor and the actuator. The sensor is typically mounted on the stationary portion of a structure and the actuator is mounted on the movable portion. The sensor is designed to work with the correct actuator (key) to reduce tampering and increase safety.
Actuation of the interlock switch occurs only when the corresponding key is inserted into the key slot. The key is usually mounted on a door or machine guard in such a way that when the door or the guard is closed, the key fits into the slot actuating the switch. The special key design makes the safety interlock switch extremely difficult to defeat. When inserted into the slot, the key performs three separate mechanical functions.
Not sure if Eaton sensor and limit switch solutions are right for you? You can request samples of Eaton sensors FREE OF CHARGE to test them with your machine applications. We will make our Eaton experts available to assist with product selection and provide technical guidance so that you choose the right sensor for your needs.
Take into consideration the following variable when selecting a safety interlock switch
Select the appropriate output configuration for the application based on the number of circuits needed
