TB388 series Daily Analogue Time Switch

TB388 analog time switch is a affordable cost alternative for applications that require more than 20A and wide voltage 110-230 VAC.

  • 1 channel
  • 96 switching segments
  • Simple summer/winter time correction
  • Finger-safe terminals
  • Quartz controlled
  • Switching status display
  • Clock hands for time display
  • With power reserve (Nickel metal hydride battery replacement)

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Daily Program

ON/OFF Program

15 Mins

Minimum Interval

Product Selection

BoxTB388: no box; TB388B: iron box; TB388S: plastic box
Switching capacity20A

Maximum Recommended Load (10,000 operations)

Filament / Halogen lampMotor load(cos∅=0.7)Fluorescent lamp load (conventional) parallel-corrected
2300 WAC110.750W AC220V.1500W1300VA 70uF

Technical Data

Time accuracy at 25 °C≤± 2 Sek./day (quartz)
Power reserve300 hours
Type of contactNot potential-free
Type of protectionTB388: IP 20; TB388B/TB388S: IP 40
Class of protectionII according to EN 60 730-1
Housing and insulation materialHigh-temperature resistant, self-extinguishing thermoplastic
Test approvalCE
Power consumption3 VA

Download Documents

TB388 analog daily time switch

File size : 263.48 KB


TB388B analog daily time switch

File size : 322.46 KB


TB388S analog daily time switch

File size : 265.07 KB


TB388 manual 1

File size : 423.34 KB


TB388 manual 2

File size : 321.05 KB


TB388B manual 1

File size : 242.68 KB


TB388B manual 2

File size : 260.06 KB


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