YULIAN

TF4A

power supply voltage 100 – 240 VAC 50/60 HzVoltage variation rate ±10% of the power supply voltageConsume electricity 3.2 VADisplay method White 7-segment LEDFont size Text height (8.5 mm), text width (5.0 mm)Timing Actions Power On StartRecovery time Below 500 msAction time error ▪ Power on: ± 0.01% ± 0.05 seconds

▪ Reset start: ± 0.01% ± 0.03 secondsenter ▪ External switch input mode selection (voltage input/no voltage input)

▪RESET, INHIBIT Input Structure

▪ Input voltage: HIGH level (5 V – 30 VDC), LOW level (0 V – 2 VDC), input resistance (approx. 4.7 kΩ)

▪ No voltage input: Interrupt voltage (below 1 kΩ) during circuit break, residual voltage during circuit break (below 2 VDC)Minimum input signal time Less than 20 ms (RESET, INHIBIT input)Control output ▪Limited-time offer: 1 c (SPDT)

▪SPDT: NC (250 VAC 2 A), NO (250 VAC 5 A), resistive loadRelay lifespan Electrical (over 50,000 cycles), Mechanical (over 10 million cycles)External connection method 8-pin insertion typeInsulation resistance 100 MΩ and above (500 VDC megawatt standard)Withstand voltage 2,000 VAC 60 Hz 1 minute (conductive terminals and exposed unfilled metal)Interference resistance Square wave interference generated by the noise simulator is ±2,000 V (pulse width 1 µs).shock ▪ Durability: 10 – 55 Hz (period 1 minute), complex amplitude 0.75 mm, 2 hours in each of the X, Y, and Z directions.

▪ Malfunction: 10 – 55 Hz (period 1 minute), complex amplitude 0.5 mm, 10 minutes in each of the X, Y, and Z directions.Use ambient temperature and humidity -10 ~ 55 ℃, 35 ~ 85 % RHStorage temperature -20 ~ 65 ℃weight 92g

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Description

Enhanced visibility: High-brightness white LEDs, text size height (8.5mm), width (5.0mm)
– White indicator lights for easy confirmation of input/output status (reset input/input disabled/prompt/output display)
– Front acrylic application improves durability and design
– Short profile saves space (rear depth 63.7mm when panel installed)
– Easy-to-use DIP switches
– Input method (voltage input/no voltage input), increment/decrement mode selection, decimal point setting, and time range setting can be selected via a side depth switch
– Power supply voltage: 100 – 240 Va.c. 50/60 Hz
– 8-pin connector for easy installation/maintenance
– Front and rear terminal block protective covers (sold separately)

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Engineering Excellence

Professional engineering support with 17 years of experience in automation and electrical components.

Precision Manufacturing

Stable and reliable production of PLCs, I/O modules, relays, terminals, and switches.

Quality Assurance

Quality-first processes ensuring consistent performance and customer trust.

R&D Innovation

Continuous improvement to support automation, new energy, and electrical industries.

Our Certificates

Shenzhen Yulian Technology Co., Ltd. operates with a strong commitment to quality, safety, and environmental responsibility. Supported by modern production facilities and a professional engineering team, we follow standardized management systems to ensure product consistency, reliability, and customer satisfaction.

From manufacturing to final inspection, every process is carefully controlled to meet international standards and long-term performance requirements for automation and electrical components.

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From standard automation products to customized electrical components – we deliver stable performance, consistent quality, and global-grade reliability for industrial and new energy applications.