Littelfuse TDR Series - Relay-Output, Recycling Time Delay Relay

TDR Series - Relay-Output, Recycling Time Delay Relay

from Littelfuse / SSAC and Anderson-Bolds

Littelfuse Timers, TDRs and Monitors

 

 

 

For a Quote, Please click HERE!

The Littelfuse 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 deenergizes, 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 of the ON time the load de-energizes and the red LED turns OFF. The cycle repeats until input voltage is removed.
Reset: Removing input voltage resets the output and the sequence to the OFF time.

Features & Benefits:

ON & OFF time delay settings:   Independent adjustment allows for greater flexibility 

3 Time Ranges Available (0.1s to 2.8h):  Makes it versatile for use in many applications 

Microcontroller based:  Repeat Accuracy + / - 0.1% or 20 ms, whichever is greater; Setting Accuracy + / - 2% or 50 ms, whichever is greater

DIP switch adjustment:  Provides first time setting accuracy

Isolated output contacts:  Allows control of loads for AC or DC voltages 

LED indication (select models):  Provides visual indication of relay status 

Littelfuse Recycle Timer Series TDR

 

 

  

 

 

 

 

 

Specification:

Time Delay

Type  Digital integrated circuitry

Range:   0.1–102.3 s in 0.1 s increments 1–1023 s in 1 s increments 10–10,230 s in 10 s increments 

Repeat Accuracy:  ±0.1 % 

Setting Accuracy:  ±2 %  

Reset Time:  ≤ 150 ms 

Time Delay vs. Temperature & Voltage:  ±5 % 

Indicator:  LED glows during timing; relay is de-energized 

Input 

Voltage:  12, 24, or 110 V dc; 24, 120, or 230 V ac 

Tolerance:  12 V dc & 24 Vdc/ac-15 %–20 %110 V ac/dc to 230 V ac-20 %–10 % 

Ac Line Frequency:   50/60 Hz 

Power Consumption:   ≤ 3.25W 

Output 

Type:   Electromechanical relay 

Form:   DPDT 

Rating: 10 A resistive @ 120/240 V ac; 1/3 hp @ 120/240 V ac

Life 

Mechanical - 1 x107; Electrical - 1 x 106 

Protection 

Polarity:  Dc units are reverse polarity protected

Isolation Voltage:  ≥ 1500 V RMS input to output 

Mechanical:

Mounting:  Plug-in socket 

Dimensions:  H 44.45 mm (1.75”); W 60.33 mm (2.38”); D (with socket) 104.78 mm (4.13”)  

Termination:  Octal 8-pin plug-in 

Environmental:

Operating/Storage Temperature-20 °C to 65 °C / -30 °C to 85 °C

Weight:  ≅ 4 oz (113 g)

Littelfuse detail of Dip switches. Timers can have a mix of ranges

 

 

 

 

 

 

 

 

Littelfuse Series TDR Model Numbers 

TDR1A22   12VDC    

ON time first    1-1023 in 1s increments, Off Time: 1-1023 in 1s increments

 

TDR2A23   24VAC   

ON time first    1-1023 in 1s increments, Off Time: 10-10230 in 10s increments

 

TDR4A11   120VAC    

ON time first    0.1-1023 in 0.1s increments, Off Time: 0.1-1023 in 0.1s increments

 

TDR4A12   120VAC    

ON time first    0.1-1023 in 0.1s increments, Off Time: 1-1023 in 1s increments

 

TDR4A13   120VAC    

ON time first    0.1-1023 in 0.1s increments, Off Time: 10-10230 in 10s increments

 

TDR4A22   120VAC    

ON time first    1-1023 in 1s increments, Off Time: 1-1023 in 1s increments

 

TDR4A23   120VAC    

ON time first    1-1023 in 1s increments, Off Time: 10-10230 in 10s increments

 

TDR4A33   120VAC    

ON time first    10-10230 in 10s increments, Off Time: 10-10230 in 10s increments

 

TDR4B22   120VAC    

OFF time first    1-1023 in 1s increments, On Time: 1-1023 in 1s increments

 

TDR4B23   120VAC    

OFF time first    1-1023 in 1s increments, On Time: 10-10230 in 10s increments

 

TDR6A22   230VAC    

ON time first    1-1023 in 1s increments, Off Time: 1-1023 in 1s increments

Accessories:

NDS-8 Octal 8-pin Socket

8-pin 35mm DIN rail or surface mount. Rated at 10A @ 300VAC. Surface mounted with two #6 (M 3.5 x 0.6) screws or snaps onto a 35 mm DIN rail. Uses PSC8 hold-down clips.

 

PSC8 Hold-down Clips  

Securely mounts plug-in controls in any position. Provides protection against vibration. Use with NDS-8 Octal Socket. Sold in pairs.  

 

BZ1 Front Panel Mount Kit 

Provides an easy method of through-the-panel mounting of 8- or 11-pin plug-in timers, flashers, and other controls.

 

C103PM (AL) DIN Rail  

35 mm aluminum DIN rail available in a 36 in. (91.4 cm) length.

For a Quote, Please click HERE!

Anderson-Bolds

216-360-9800

www.anderson-bolds.com

Littelfuse TDR...SSAC TDR...Littelfuse TDR