SSAC-SYMCOM TDR4A23 Time Delay Relay
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SSAC-SYMCOM TDR4A23 Time Delay Relay
SSAC-SYMCOM TDR4A23 Time Delay Relay
Part #:TDR4A23
SKU #: 2161900
Key Features
Part #:TDR4A23
SKU #: 2161900
Brand: Littelfuse
Contact Form: DPDT
Dimensions: 3.2 in L x 2.39 in W x 1.78 in H
Display Type: LED
Horsepower: 1/3, 1/3 hp
Number of Pins: 8
- -20% to 10% input tolerance
- Electromechanical relay output
- 10 A resistive at 120/240 VAC/30 VDC/1/3 hp at 230 VAC output load rating
- Microcontroller circuitry time delay
- 1 to 1023 sec in 1s increments ON time/1 to 1023 sec in 1s increments off time time delay
- 500 ms recycle time
- 150 ms reset time
- +/- 0.1% or 20 ms whichever is greater repeat accuracy
- +/- 2% or 50 ms whichever is greater setting accuracy
- +/- 2% set point vs ambient temperature and operating voltage
- Input green LED on when input voltage is applied, relay red, LED ON when output relay energizes indication
- 100 MOhm insulation resistance
- 1500 Vrms input to output isolation voltage
- 2 VA power consumption
- Octal 8-pin plug-in termination
- Plug-in socket mounting
- -22 to 185 deg F storage temperature
SSAC-SYMCOM TDR4A23 Time Delay Relay
Littelfuse Time Delay Relay, Series: TDR, 120 VAC, 1/3 hp, 8 Pins, DPDT, 50 ms, LED, -4 to 140 deg F, Plug-In/Socket Mount, 3.2 in L x 2.39 in W x 1.78 in H
Additional Description: LTFS-TDR4A23 SOLID STATE ON/OFF TIME
Catalog Description: The TDR Series of time-delay relays are comprised of digital circuitry and an isolated, 10A relay output. The ON and OFF delays are selected by means of two, ten position binary switches, which allow the setting of the desired delay to be precise every time. Operation (Recycling - ON Time First): Upon application of input voltage, the green LED glows, the output relay is energized, the red LED glows, and the T1 ON time begins. At the end of the ON time, the output de-energizes, the red LED turns OFF and the T2, OFF time begins. At the end of the OFF time, the output relay energizes and the cycle repeats as long as input voltage is applied. Reset: Removing input voltage resets the output and time delays, and returns the sequence to the first delay. Operation (Recycling - OFF Time First): Upon application of input voltage, the green LED glows, the T1 OFF time begins, the load is OFF. At the end of the OFF time, the T2 ON time begins, the load energizes, and the red LED glows. At the end