TF4A Digital timer
- Improved Visibility : High brightness white LED applied. 8.5mm height, 5.0mm width of Letters Size.
- Easy input/output status check by white lamp
(reset input/prohibition input/Time value indication/output indication)
- Improved durability and design by applying acrylic window on the front part.
- Space efficient from short body. (63.7mm depth of the rear part in condition of panel attachment)
- Easy-to-set thumbwheel switch applied.
- Input method selection(voltage input/no-voltage input) and add-subtract mode selection with deep switch on the side part Decimal position and time range setting available.
- Power supply voltage : 110 – 240V a.c 50/60 Hz
- 8-pin plug for easy installation/maintenance
- Protection cover for the front part, and for terminal block on the rear part. (optional)

The order from the left is the order in which the information is displayed at the bottom. If you cancel the check, the information will be excluded, and if you check, it will be printed out.

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▍Specification

Power voltage

100 - 240 V a.c. 50/60 Hz

Voltage fluctuation rate

Power voltage ±10 %

Power consumption

3.2 VA

Display

White 7 segments LED

Character size

Character height (8.5 mm), Character width (5.0 mm)

Timer operation

Power On Start

Return time

500 ms max.

Timer operation error

• Power start : ± 0.01 % ± 0.05 seconds or less • Reset start : ± 0.01 % ± 0.03 seconds or less

Input

• Input method selection by external switch (Voltage input / No voltage input)

• RESET, INHIBIT Composed of input

• Voltage input : HIGH level (5 V - 30 V d.c.), LOW level (0 V - 2 V d.c.), Input resistance (Approx. 4.7 kΩ)

• No voltage input : Impedance in case of short circuit (1 kΩ below),

Residual voltage in case of short circuit (2 V d.c. below)

Min. Input signal time

20 ms or less (RESET, INHIBIT input)

Control output

• Time limit 1c (SPDT) • SPDT : NC (250 V a.c. 2 A), NO (250 V a.c. 5 A), Resistance load

Relay life time

Electrical (more than 50,000 times), Mechanical (more than 10 million times)

External connection

method

8-pin socket

Insulation resistance

100 MΩ or more (500 V d.c. Mega standard)

Dielectric strength

2,000 V a.c. 60 Hz 1 minute (Between the conductive part terminal and the case)

Noise immunity

Square wave noise by noise simulator ± 2,000 V (Pulse width 1 us)

Vibration

• Durability : 10 - 55 Hz (1 minute cycle), Double amplitude 0.75 mm, X · Y · Z 2 hours each direction

• Malfunction : 10 - 55 Hz (1 minute cycle), Double amplitude 0.5 mm, X · Y · Z 10 minutes each direction

Ambient temperature

&humidity

-10 ~ 55 ℃, 35 ~ 85 % R.H.

Storage temperature

-20 ~ 65 ℃

Weight

Approx. 92 g

▍Suffix code

Model

Code

Content

TF4A-

Digital Timer, 48(W) X 48(H) mm

Power supply voltage

A

100 - 240 V a.c. 50/60 Hz

▍Dimension & panel cutout

[Unit : ㎜]

■ Dimension

Dimension

■ Panel cutout

Panel cutout

■ Front Protective Cover • Order code : W-SAFETY COVER 48

Front Protective Cover

■ Bracket assembling · disassembling

Bracket assembling˙disassembling