TB388 Wall mounting daily program Analog Time Controls

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TB388 Wall mounting daily program Analog Time Controls

The TB388 analog time switch is a affordable cost alternative for applications that require more than 20 A and wide voltage 110-230 VAC. Unit can be mounted in the indoor or outdoor enclosure.


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■ Analogue time switch Applications
■ 24-Hour or 7-day applications Billboard or Showcase lighting
■ Finger-safe terminals Air-condition or Commercial Refrigeration
■ 1 channel Pumps/Motor/Geyser/Fan Control
■ Switching status display Hydroponic Systems
■ Quartz controlled Wastewater Treatment Systems
■ Shortest switching time:15 minutes Generator Exercising
■ 96 switching segments Boilers / Heater Control
■ With power reserve (Nickel metal hydride battery replacement ) Pool & Spa
■ Clock hands for time display
■ Simple summer/winter time correction

Technical data

Type TB388
Operating voltage  110-230VAC
Frequency  50-60 Hz
Number of channels 1
Width  5 modules
Installation type Wall / DIN-rail / enclosure
Type of connection Screw terminals
Drive Quartz-controlled stepper motor
Program  Daily program
Power reserve  300 hours
Max. switching capacity at 250 V AC, cos φ = 1 20 A
Max. switching capacity at 250 V AC, cos φ = 0.6 12 A
Incandescent/halogen lamp load 2300W
Motor load(cos∅=0.7) AC110.750W   AC220V.1500W
Fluorescent lamp load (conventional) parallel-corrected 1300VA 70uF
Shortest switching time  15 min
Programmable every  15 min
Time accuracy at 25 °C  ≤ ± 2 s/day(Quartz)
Switch type SPDT
Contact type  Not potential-free
Number of switching segments 96
Power consumption 3 VA
Test approvals CE
Housing and insulation material High-temperature resistant, self-extinguishing thermoplastic
Type of protection IP 20
Protection class II in accordance with EN 60730-1
Ambient temperature –10 °C … +50 °C