TRU1 - Knob Adjustable Universal Time Delay Relay Series

Series: TRU
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The TRU Series is a multifunction, knob adjustable, Universal Time Delay Relay. It includes six of the most popular timing functions selected by a slide switch. The time delay is knob adjustable and the time delay range is switch selectable. The repeat accuracy is + 0.1%. Both function and time range can be selected on the top face of the unit. In addition to multifunctioning and multiple time ranges, the TRU Series features universal input voltage; 19 to 264VAC and 19 to 30VDC and full 10A output relay. The TRU Series can directly replace up to 1000 competitive time delay relay models.


Operation
A six position slide switch selects delay-on-make, interval, single shot, recycling (ON time first, Equal Recycle Delays), delay-on-break, and retriggerable single shot. 8-pin DPDT base wiring is limited to delay-on-make, interval, and recycling functions. All six functions are available in the 8-pin SPDT and 11-pin DPDT versions.

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

Property (Mouseover for details) Value
Input Voltage (V) 19 or 264 V ac; 19 or 30 V dc
Input AC Line Frequency (Hz) 50/60
Output Type Electromechanical relay
Output Form Isolated DPDT with 3 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 Digital
Time Delay Range 0.1 s - 1000 m in 6 ranges: 0.1 - 10 – 1 - 100 or 10 - 1000 s; 0.1 - 10 – 1 - 100 or 1000 m
Reset Time (ms) ≤300
Adjustment Type Multiplier: 4 position DIP switch selects x0.1-x1-x10 or x100 and s or m; Time setting: onboard knob adjustment with 1 - 100 reference dial
Repeat Accuracy (%) ±0.1% or 20 ms whichever is greater
Setpoint vs Ambient Temperature and Operating Voltage (%) ±2%
Indication Two LEDs indicate: 1) input voltage applied; 2) output relay status
Isolation voltage ≥1500 Vrms input to output
Polarity DC units are reverse polarity protected
Life Electrical: 1 x 10⁶; Mechanical: 1 x 10⁷
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 3.44 H x 2.39 W in. (87.3 x 60.7 mm)
Weight (lbs/g) 0 Kg
Dimensions 3.44 H x 2.39 W in. (87.3 x 60.7 mm)
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