The RMS-EX-WP series of explosion and weather proof manual pull stations are constructed of high-strength metal die-cast alloy and the finest workmanship available. The RMS-EX-WP series have a UL rating of class I, division I, group B (hydrogen) C&D, class II, division I, groups E, F, G, class III and an outdoor rating of NEMA type 4X. Electrically the RMS-EX-WP series manual pull station is unbeatable with 10 amp snap action switch offered in all possible contact arrangements.