Intermatic T7801B 7-Day Dial With and Without Carryover

Intermatic T7801B 7-Day Dial With and Without Carryover

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Item# Intermatic T7801B

These time switches provide a different “ON/OFF” program each day of the week. They also provide for 4 pole single throw and 4 pole (2NO/2NC) switching. This series provides true 7-day load control with minimum ON and minimum OFF times of 3-1/2 hours. The “BC” models with carryover provide a carryover of 16 hours minimum to maintain accurate load control even during power failure. When power resumes, the carryover automatically rewinds itself. Only 1 hour is required to rewind the carryover for each 2 hours of outage.


  • Model: T7801B
  • Model Number Steel NEMA3R Case:-
  • Model with CarryOver: T7801BC
  • Switch: 2NO/2NC
  • Clock Motor Volts 60Hz: 125
  • Amps (per pole): 40
  • Case: Steel in gray finish 12-1/2" (31.7 cm) high, 8-1/4" (21.0 cm) wide, 4" (10.2 cm) deep. Indoor type with toggle action drawbolt and locking feature. Four mounting holes on back. Separate grounding terminal.
  • Knockouts: Combination 1/2"-3/4" nominal knockouts, two on back, one on each side and two on bottom. Also one 1" nominal on bottom center.
  • Optional Enclosures: See Time Switch Cases for optional enclosures
  • Special Voltages and Cycles: See Time Switch Motors for available motors. Contact factory for availability of time switch with 50 cycle or other voltages.
  • Switch Rating: Each Pole 40 amp resistive, 120-480 VAC; 40 amp tungsten, inductive or 1000 VA pilot duty, 120-277 VAC; 2 HP (24 FLA) 120 VAC; 5 HP (28 FLA) 240 VAC single phase; 7-1/2 HP (28 FLA) 208 VAC three phase; 10 HP (28 FLA) 240 VAC three phase.
  • Carryover: Minimum time - mechanical operation: 16 hours. Carryover accuracy +/-2%.

Note: All models (B or BC suffix) have separate clock motor terminals for switching circuits not on line voltage.


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