The Murphy 761APH-30-12 Tattletale is used for distributor ignition or diesel engines. Time delay lockout of Swichgage contacts on start-up only; customer wired for delayed or immediate trip on shutdown. Breaks and makes circuits when tripped. This 12 volt model has a 30 second time delay. The 761APH-30-12 Tattletale features a manual indicating reset type. The control circuit output contacts are NCH and NOH. In the latched position the NCH contact has a "hot" output. In the tripped position the NOH contact has a "hot" output. The latch type is energize to trip. Contacts are rated for 10 amps 24V. 14 amp fuse is included. Carries the CE mark.