Schmersal AZ300 mechatronic safety switch

The design of the external cam on the Schmersal AZ300 mechatronic safety switch, in the shape of a Maltese cross, allows the AZ300 to accept the actuator from any of three sides, providing mounting flexibility for either left- or right-hinged doors, or sliding guards.

The AZ300 also has integrated an RFID sensor to detect the actuator and indicate a closed guard. This non-contact operating principle limits wear on components, tolerates misalignment and offers the option of individual coding. The basic version of the sensor responds to any AZ300 target actuator; the ‘I1’ version only accepts the coded ID number of the specific target actuator which is configured during the first start-up; and the ‘I2’ version allows the teach-in process to be repeated, allowing replacement of a lost or damaged actuator.

With continuous internal function tests and monitoring of the safety outputs, the AZ300 can be wired in series without detriment to the safety levels. Diagnostic LEDs on the sensor indicate various errors, misalignment and door open/closed signalling. For more advanced indication, the AZ300 is also available with serial diagnostics.

The AZ300 also offers adjustable latching, which provides a holding force of 25 N or 50 N. Lockout/tagout can be achieved by placing padlocks through the key of the actuator, preventing the guard from closing.

The AZ300 meets the requirements of Cat 4, Performance Level e or Safety Integrity Level 3; and because of its protection class IP69K, it is also suitable for use in hygiene-sensitive areas.