TRDU24A1 - TRDU Series

Series: TRDU
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Littelfuse products are not designed for, and shall not be used for, any purpose (including, without limitation, automotive, military, aerospace, medical, life-saving, life-sustaining or nuclear facility applications, devices intended for surgical implant into the body, or any other application in which the failure or lack of desired operation of the product may result in personal injury, death, or property damage) other than those expressly set forth in applicable Littelfuse product documentation. Warranties granted by Littelfuse shall be deemed void for products used for any purpose not expressly set forth in applicable Littelfuse documentation. Littelfuse shall not be liable for any claims or damages arising out of products used in applications not expressly intended by Littelfuse as set forth in applicable Littelfuse documentation. The sale and use of Littelfuse products is subject to Littelfuse Terms and Conditions of Sale, unless otherwise agreed by Littelfuse. "Littelfuse" includes Littelfuse, Inc., and all of its affiliate entities.

The TRDU Series is a versatile universal time delay relay with 21 selectable single and dual functions. The dual functions replace up to three timers required to accomplish the same function. Both the function and the timing range are selectable with switches located on the face of the unit. Two LED’s indicate input voltage and output status. This device offers full 10A isolated relay output contacts in either SPDT or DPDT. The TRDU replaces hundreds of part numbers, thereby, reducing your stock inventory requirements.

21 Functions: Five switches are provided to set one of 10 single or 11 dual modes of operation. See datasheet for a complete list of singe and dual functions.
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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) 24 V ac/dc
Input Tolerance (%) -15% - 20%
Input AC Line Frequency (Hz) 50/60
Output Type Electromechanical relay
Output Form DPDT limited to 9 operating functions
Output Load Rating (VA) 10 A resistive @ 120/240 V ac and 28 V dc; 1/3 hp @ 120/240 V ac
Time Delay Type Microcontroller
Time Delay Range Single functions: 0.1 s - 1705 h in 8 ranges; Dual functions: 0.1 s - 3100 m each in 8 ranges
Time Delay Option Five switches are provided to set one of twenty-one single or dual functions
Reset Time (ms) ≤50
Adjustment Type Multiplier: 3 position DIP switches select 0.1-1-10 or 100 in s or m
Repeat Accuracy (%) ±0.1% or 20 ms whichever is greater
Setting Accuracy ±1% or 50 ms whichever is greater
Setpoint vs Ambient Temperature and Operating Voltage (%) ±1%
Indication Two LEDs indicate: 1) input voltage applied; 2) output relay status
Insulation Resistance ≥100
Polarity DC units are reverse polarity protected
Life Electrical: 1 x 10⁶; Mechanical: 1 x 10⁷
Power Consumption ≤3 W
Termination Type Octal 8-pin plug-in
Mounting Method Plug-in socket
Operating Temperature -20° to 65°C (-4° to 149°F)
Storage Temperature (F/C) -40° to 85°C (-40° to 185°F)
Dimensions 3.1 H x 2.39 W in. (78.7 x 60.7 mm)
Weight (lbs/g) 0 Kg
Dimensions 3.1 H x 2.39 W in. (78.7 x 60.7 mm)

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