TH3AC Timers

TGC Delay on Make  Relay Timer 10-30 Amps

Timing Mode | Anti-Short-Cycle

Category | Solid State Timer

Series | TH3AC

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.

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
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