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Solid State

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The TH3AC are Anti-Short-Cycle timers with solid state output for compressor protection. An optional “Delay On Make” function is offered for sequencing or prevention of contactor chatter. Simple 3 terminal connection and encapsulated 2" x 2" package. Anti-short-cycle timers prevent premature cycling of compressors in refrigeration, air conditioning and heat pumps, there by reducing nuisance tripping of fuse or circuit breaker.


TGC Delay on Make  Relay Timer 10-30 Amps

Timing Mode

When power is applied (i.e. thermostat closes), the load energizes. Removal of power begins the “lockout” and the time delay begins (i.e. locking out the compressor). The load is energized after the time delay expires.

Delay On Make option delays the initial load output for up to 5 minutes.

Cube Relay, 10-30 Amps, Timer with Relay Output


  • 1 Amp current load
  • 10 Amps single AC cycle surge handling
  • 3 Operating voltages 24/120/230 VAC
  • Factory-fixed or potentiometer adjustable
  • Totally encapsulated for protection from harsh environments
  • Optional Delay On Make
  • 24 VAC unit has anticipator resistor bypass
  • Single screw mounting through center hole
  • Industry-standard three-terminal (0.25") quick connects
  • 100% Operational testing before shipping
  • RoHS compliance available
Basic Wiring and Dimensions
Solid State DC Voltage
  • Input Voltage VAC
24 (±20%) 50/60Hz 
VAC: 120/230, 50/60Hz
  • Anticipator Resistor  
(24VAC only) 200 Ohms minimum
  • Time Delay 
Up to 10 minutes
  • Lockout Time 
Factory-fixed or variable with knob on timer
  • Tolerance 
+35% -15% of nominal time
  • Initiate Time 
16 milliseconds
  • Life Expectancy 
No predictable failure if used within operating parameters
  • Protection 
Transient Protection: 18 joules
Dielectric Strength: 1800 RMS 60Hz
  • Temperature Ranges 
Storage: -40°C to +85°C
Operating: -25°C to +65°C
Humidity: 95% relative
  • Physical Data 
Surface mount with single #8 or #10 screw
  • Connection & Termination 
0.25" quick connects
Data Sheet:

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