This is a Murphy 12V Tattletale®. Instant-trip (no delay).
Allows for Swichgage and/or N.C. contacts to be wired closed loop (in series). Any contact open or Swichgage contact close in the circuit trips this tattletale. Contacts 10 amps 24V. 14 amp fuse.
Give us a call if you have any questions at 602-850-7399.