T2D120A15M - Lockout HVAC Timer Series

Series: T2D
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The T2D Series provides protection against short cycling of compressors and other motors. At the end of each operation, a lockout delay prevents restarting the compressor or motor until the delay is completed. 24VAC models can be used with thermostats that include a cooling anticipator resistor. It can be connected in series with the load for delay-on-make operation.


Operation (Lockout with Random Start)
Connection #1: Upon application of input voltage, a random start time delay begins. At the end of this time delay, the output is energized.
Lockout Delay: Input voltage must be applied prior to and during timing. When the thermostat or initiate switch opens, the output de-energizes and the lockout time delay begins. At the end of the lockout delay, the output is energized allowing the load to immediately energize when the initiate switch or thermostat closes.
Connection #2: Upon application of input voltage and closure of initiate switch, the time delay begins. At the end of the time delay, the output is energized and remains energized until power is removed.
Reset: Removing power resets the output and the time delay.

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Product Literature

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

Property (Mouseover for details) Value
Input Voltage (V) 120or 230 V ac
Input Tolerance (%) ±20%
Input AC Line Frequency (Hz) 50/60
Output Load Rating (VA) 1 A steady state; 10 A inrush @ 60°C
Minimum Output Load Current (A) 40
Output Voltage Drop (V) ≅2.5 V @ 1 A
Time Delay Type Analog
Reset Time (ms) After timing: ≤16; During timing: ≤200
Lockout and Random Start Delays 5 m fixed
Initiate Time (ms) After timing: 16
Repeat Accuracy (%) ±1% or 20 ms whichever is greater
Thermostat Anticipator Resistor (Ohms) Anticipator resistor: ≥3000
Insulation Resistance ≥100
Dielectric Breakdown ≥2000V terminals to mounting surface
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 -20° to 60°C (-4° to 140°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)
To request product environmental information, please complete the Product Environmental Information Request Form.