Pertronic Industries’ range of weatherproof manual call points (MCP) have been upgraded following an intensive programme of research and development.
The project’s main goal was to provide superior protection against moisture. Pertronic engineers developed a multi-stage manufacturing process optimised for the Pertronic Manual Call Point, using advanced encapsulation materials.
All of the call point’s internal electronics, including the push-button switch, are enclosed inside a solid waterproof capsule. The isolator bypass link in the addressable manual call point has been deleted to eliminate possible water ingress.
Circular Snap-Glaze windows have been replaced with standard rectangular windows identical to those on non-weatherproof MCPs to simplify field replacements.
Instead of screw terminals, the new MCPs have pre-stripped wire tails firmly embedded in the waterproof encapsulation. Pertronic Industries strongly recommends that each wire tail is crimp-spliced to the field wiring, and the crimp-splice covered with adhesive-lined heat-shrink tubing. This stops moisture getting into the splice, from where it could wick in toward the electronics.
Engineering tests at Pertronic’s R & D laboratory confirm the new MCPs meet IP65 environmental protection, compared with IP54 for the old MCPs.
Pertronic Weatherproof MCPs come in three styles: