The NAL Traffic Signal Termination Enclosure and Vented Top Cap have been specifically developed to enable all traffic signal terminations to be located behind a low level pole access door.  The Enclosure fits neatly within a standard 114mm Steel Traffic Signal Pole and will therefore function with any steel traffic signal of 114mm diameter or greater.

With the recent introduction of 114mm Traffic Signal Poles with low level access doors, the NAL enclosure now allows all terminations, normally installed at the top of the signal pole, to now be housed at ground level. The Enclosure has been manufactured in a 3 part modular unit, comprising of a back cover, middle termination chassis, and a clear front cover. This design allows cabling works to be done outside the pole if required. The system is supplied with termination and earth blocks per installed to one side of the Middle chassis as standard, however both sides can be populated and/or non standard assembly items can be carried out on request.

The Enclosure has been designed to IP65 which protects terminations against direct water ingress. The NAL Vented Top Cap has been developed to ensure there is constant air movement within the pole and therefore ensures the Enclosure remains free from condensation.  

This now allows all Traffic Signal installation and maintenance works to be carried out safely at ground level, therefore eliminating all risks associated with working at height. The system also ensures all terminations are kept free from moisture problems and ensures pedestrian safety in the event of an access door failure/removal.