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Monitor door pairs with one safety switch and two actuators

Mechan Controls Ltdvisit website

 

Monitor door pairs with one safety switch and two actuatorsMechan Controls is promoting its HED safety switch that monitors two adjacent doors with a single switch and a coded magnetic actuator on each door. This saves on installation time, cabling, parts count and purchase costs - one HED switch costs around half the price of two separate switches. The non-contact actuators can approach the switch from most angles, with the switching distance being 7mm. Safety-related specifications are PL e, Category 4 and SIL 3.

Each HED switch has two normally-open safety contacts. When either door (or gate, guard or cover) is opened, a normally-open contact is opened and the corresponding normally-closed auxiliary contact is closed. Both doors must be closed to enable the two N/O contacts to close and the N/C indication contact to close. LED status indicators on the switch body aid fault diagnosis. There is a choice of three cable entry points: left, right or centre.

Plastic or stainless housings

HED switches feature agent-resistant plastic or 316 stainless steel enclosures encapsulated with epoxy resin for a protection level of IP67 and IP69K. The solid-state design makes the HED tolerant of shock and vibration.

Mechan's HE-Series safety switches have been fully tested and approved by TUV and cULus. If you are looking for a reliable, cost-effective way top safeguard two doors, follow the link to find out more about Mechan's HED safety switch. Alternatively, telephone +44 (0)1695 722264 (please mention MachineBuilding.net). You can also follow Mechan on its official Linkedin company page.

 
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