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  • TT-104B.jpg

Program Timer


The TT-104B is a program timer that comes with 4 outputs and controls 4 different broadcasts. With use of an optional rack-mounting bracket, it can be mounted in an EIA Standard equipment (occupying 1 unit size).

  • 4 independent output channels
  • Weekly program capacity is 30 steps per channel, and each step can be programmed in 1-minute units.
  • A channel assignment switch turns B, C and D outputs into A output.
  • Programming can be performed easily and precisely through individual key operation and display.
  • Setting the pause mode allows no program output to be delivered.
  • Output is a no-voltage make contact that connects for 5 seconds at the programmed time.
  • Built-in buzzer audibly warns the user of key operation error.
  • Monthly error is ±5 seconds at 25℃ (77℉) of ambient temperature.
  • Clock and stored programs can be maintained for approximately 100 hours in the event of power outage.
Power Source
110 - 120 V AC, 50/60 Hz
Power Consumption
3 W
Displayed Contents
Day of the week, hour and minute
Programmable Item
Day of the week, hour, minute, output channel
Number of Channels
4 channels (A,B,C,D)
Output System
No-voltage (DRY) make contact (5-second pulse make output)
Output Capacity
24 V DC, 0.5 A
Output Terminal
M4 screw terminal, distance between barriers: 9 mm (0.35)
Program Capacity
30 steps per channel
Clock Accuracy
±5 seconds per month (25 ℃ (77 ℉)
Power Outage Protection Period
100 hours
Operating Temperature
0 °C to +50 °C (32 °F to 122 °F)
Panel: Aluminum, black, 30 % gloss, paint
Case: Pre-coated steel plate, black
420 (W) x 47.5 (H) x 246.5 (D) mm (16.54" x 1.87" x 9.7")
2.5 kg (5.51 lb)
Optional Accessories
Rack-mounting bracket: MB-15B

Please download Datasheet to access full specifications.

Optional Accessory

The program timer shall include four independent outputs with thirty programmable steps per output. Each output shall be rated at 0.5 A (@ 24 VDC) and provide five second dry contact closure during activation. The schedule shall include a weekly program with pause mode for vacations/ holidays. Programmable parameters shall include day of the week, hour, minute and output channel. The unit shall maintain +/-5 second per month clock accuracy with 100 hour backup battery if power fails. Power requirements shall be 110 V to 120 V AC 50/60 Hz with power consumption of 3 W. The unit shall be capable of operation within a temperature range from 32°F to 122°F (0°C to 50°C). Dimensions (W x H x D) shall be 1.8” x 16.5” x 9.0” (44.5 x 420 x 228 mm) and weight shall be 5.5 Ibs. (2.5 kg).

The program timer shall be the TOA model TT-104B.
The rack-mount kit shall be TOA model MB-15B.

  • TT-104B.jpg

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