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Interlocking devices without guard locking

Interlocks without guard locking are safety devices used in the context of industrial automation and designed to stop the dangerous functions of a machine as soon as the guard is opened.

Immediate access to protected areas

Unlike systems with guard locking, these interlocks are used when it is necessary to guarantee effective protection for machinery without inertia.

These devices act exclusively on the control circuit of the machine. When the guard is opened, they send a stop signal that disconnects power to dangerous elements.

Application of interlocks without guard locking

Interlocks without guard locking are installed when the time required for the machine to stop is less than the time required for a person to reach the danger area. This time is calculated according to the principle set out in standard EN ISO 13855.
The use of interlocks without guard locking is set out in standard EN ISO 14119, which defines the design and installation requirements to avoid circumvention of the system.

Types of interlocks without guard locking

Products
Interlocks with separate actuator
Products
Contactless RFID interlocks with separate actuator
Products
Magnetic contactless interlocks with separate actuator
Products
Safety hinges
Products
Hinge-actuated interlocks

Advantages of Pizzato interlocks without guard locking

01

High levels of reliability and safety in accordance with standards EN ISO 14119 and EN ISO 13855

02

Actuators permanently fixed to the frame of the guard with one-way safety screws

03

High protection degree up to IP67 and IP69K, ideal even for applications with exposure to dusts and high-pressure water jets

04

International approvals from leading certification bodies: IMQ, UL, TÜV, CE, CCC and ECOLAB

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