518APH-12 Murphy Tattletale Magnetic Switch


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The Murphy Tattletale Magnetic Switch 12 Volts 518APH-12 (257100147) operates the alarm or shutdown device. Any contact open or Swichgage contact close in the circuit shunt trips the 518APH-12. Contacts are rated for 10 amps 12V. A 14 amp fuse. It features a weather-resistant case with screw terminals. NCH and NOH control circuit output contact and manual reset. For distributor ignition or diesel engine