TRDU120A1 - TRDU Series

Series: TRDU Questions? Contact Littelfuse Support
Littelfuse Multifunction Relays
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.
Property (Mouseover for details) Value
Input Voltage (V) 120VAC
Input Tolerance (%) -20% - 10%
Input AC Line Frequency (Hz) 50/60Hz
Output Type Electromechanical relay
Output Form DPDT limited to 9 operating functions
Output Load Rating (VA) 10A resistive @ 120/240VAC and 28VDC; 1/3hp @ 120/240VAC
Time Delay Type Microcontroller
Time Delay Range Single functions: 0.1s-1 705h in 8 ranges; Dual functions: 0.1s-3 100m each in 8 ranges
Time Delay Option Five switches are provided to set one of twenty-one single or dual functions
Reset Time (ms) ≤50ms
Initiate Time (ms) 75ms
Adjustment Type Multiplier: 3 position DIP switches select 0.1 1 10 or 100 in s or m
Repeat Accuracy (%) ±0.1% or 20ms whichever is greater
Setting Accuracy ±1% or 50ms 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 MΩ
Isolation Voltage (V) ≥1500V RMS input to output
Life Mechanical - 1 x 107; Electrical - 1 x 106
Power Consumption ≤3W
Termination Type Octal 8-pin
Mounting Method Plug-in socket
Operating Temperature -20° to 65°C (-4°F to 149°F)
Storage Temperature (F/C) -40° to 85°C (-40°F to 185°F)
Dimensions 3.10 x 2.39 x 1.78 in. (78.7 x 60.7 x 45.2mm)
Weight (lbs/g) ≅5.8oz (164g)
Sample capable No