The WR4072 manual call points have been developed to provide a manual alarm interface to conventional fire alarm systems. They have been engineered to provide a high degree of protection against the elements. High quality switching components and materials combine to provide excellent reliability and safety. The call point is fitted with a 470 ohm internal resistor to facilitate usage on monitored systems. The call point is IP67 rated when correctly mounted and sealed within its surface mounting back box. The back box features two threaded cable entry holes to simplify installation. One of which is already fitted with a removable stopper. Functional testing of the call points is easily achieved through the use of a specialist test key (provided) which is simply pushed into the bottom of the unit to activate the switch.

• Safe and reliable • LPCB certified to BS5839 :part 2 : 1983 • IP67 rated • Terminals for up to 2.5mm2 conductors • Complementary range of accessories • Intrinsically safe option

mechanical Material Call point - Polycarbonate ABS plastic/polyphenylene oxide (NORYL SE100) Back box - 15% glass reinforced nylon 6 Flammability UL94-HB electrical Connection drawing for WR4072/GS-470