Alternator / Hour Meter Time Delay

  • The alternator relay provides a means of automatically alternating the operation of two separate air compressors.
  • Time delay allows two separate units to be started and stopped at the same time without creating a power surge.
DescriptionPart #
Automatic two compressor alternator relay 230 voltALT230
Automatic two compressor alternator relay 460 voltALT460
Hour meter (24 to 277 volt)HRM75
Hour meter for gas enginesHRM50
Time delay 18 to 240 volt 1-1023 secondsTD100
Low oil control only (no fittings or extra wires)6304
Float switch for low oil control only6304B