TAC1223 - TAC Series

Series: TAC
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The TAC1 Series was designed to delay the operation of a compressor relay. It eliminates the possibility of relay chatter due to half-wave failure of the output. It connects in series with the load relay coil and provides a delay-on-make time delay each time input voltage is applied. It can be used for random start, anti-short cycling, sequencing, and many other applications. It is an excellent choice for all air conditioning and refrigeration equipment.


Operation (Delay-on-Make)
Upon application of input voltage, the time delay begins. The output is de-energized before and during the time delay. At the end of the time delay, the output energizes and remains energized until input voltage is removed.
Reset: Removing input voltage resets the time delay and output.

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Product Literature

For Technical Questions

Call +1 800-832-3873 or email us at relays@littelfuse.com 

Property (Mouseover for details) Value
Input Voltage (V) 24 V ac
Input Tolerance (%) ±20%
Input AC Line Frequency (Hz) 50/60
Output Type Solid state
Output Form NO - open during timing
Output Load Rating (VA) 0.5 A steady state; 10 A inrush @ 60°C
Output Voltage Drop (V) ≅2.5 V @ 0.5 A
Time Delay Type Analog
Time Delay Range 2 - 180 s externally adjustable
Time Delay Tolerance (%) ≤20%
Recycle Time (ms) After timing: ≤20; During timing: 0.1% of time delay or 75 whichever is greater
Repeat Accuracy (%) ±2%
Setpoint vs Ambient Temperature and Operating Voltage (%) ≤±10%
Undervoltage Trip Voltage 2 - 180 s externally adjustable
Insulation Resistance ≥100
Dielectric Breakdown ≥2000V terminals to mounting surface
Circuitry Encapsulated
Termination Type 0.25 in. (6.35 mm) male quick connect terminals
Mounting Method Surface mount with 1 #10 (M5 x 0.8) screw
Operating Temperature -40° to 80°C (-40° to 176°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Humidity 95% relative : non-condensing
Dimensions 2 H x 2 W in. (50.8 x 50.8 mm)
Weight (lbs/g) 0 Kg
Dimensions 2 H x 2 W in. (50.8 x 50.8 mm)

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