H4DT-60

H4DT-60 – Product Description

• The H4DT-60 is an 11-pin ON-delay electronic timer from EAPL’s H4D series.

• Provides a precise ON-delay function, energizing the output relay after the preset time once power is applied.

• Designed with a large transparent dial and red pointer for easy and accurate time adjustments.

• Compact plug-in construction with 11-pin base, ensuring simple installation and replacement.

• Includes LED indicators for power and relay status for clear monitoring.

Key Specifications

• Function: ON-delay timer.

• Supply Voltage: Universal range 24 V to 240 V AC and 24 V to 220 V DC.

• Time Range: Adjustable from 0.1 seconds to 60 minutes, set via the front dial.

• Output: 2 Change-over (C/O) relay contacts, rated 5 A at 250 VAC / 28 VDC resistive load.

• Power Consumption: Approx. 5 VA (AC) or 1 W (DC).

• Accuracy:

  • Setting accuracy: ±10% of full scale.

  • Repeat accuracy: ±1%.

• Indicators: LED indicators for power ON and relay operation (UP/RUN).

• Environmental Ratings:

  • Operating temperature: –10 °C to +55 °C.

  • Storage temperature: –25 °C to +80 °C.

  • Humidity: Up to 85–95% RH at 40 °C.

• Service Life:

  • Mechanical: ≥1 million operations (no load).

  • Electrical: ≥100,000 operations at rated load.

• Insulation Resistance: >100 MΩ at 500 V DC.

• Dielectric Strength: Withstands up to 2.5 kV AC between input/output, 1.5 kV AC between relay contacts and control.

• Mounting: Plug-in 11-pin base.

• Dimensions: Approx. 48 mm × 48 mm × 105 mm.

Applications

• Sequential motor starting to reduce inrush current.

• Delayed startup for pumps, fans, and compressors.

• Lighting and heating systems requiring ON-delay functions.

• Transformer and DG set control panels with timed switching.

• MCC and Control & Relay (C&R) panels for ON-delay logic.

• Industrial automation and process machinery requiring ON-delay timing up to 60 minutes.

Summary

• The H4DT-60 is a dependable ON-delay timer with a wide universal supply voltage and timing range up to 60 minutes.

• Features high accuracy, repeatability, and long operational life.

• User-friendly dial operation and LED indicators simplify use and monitoring.

• Compact plug-in design makes it ideal for MCCs, automation, transformer/DG panels, and process industries.