H1DT-30

H1DT-30 – Product Description

• The H1DT-30 is an 11-pin ON-delay electronic timer from EAPL’s H1D series.

• Provides a precise delay period after power is applied before switching the output relay.

• Features a large front dial with red pointer for easy time adjustments.

• Compact, plug-in design with 11-pin base for quick installation and replacement.

• Equipped with LED indicators for power and operation status.

Key Specifications

• Function: ON-delay timer.

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

• Time Range: Adjustable from 0.1 seconds to 30 minutes depending on dial setting.

• 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 status (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 with secure locking design.

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

Applications

• Sequential starting of motors to avoid high inrush current.

• Pumps, fans, and compressors requiring delayed start.

• Lighting and heating systems with programmed delay operation.

• Transformer and DG set panels requiring relay delay functions.

• Control & Relay panels (C&R) and MCCs needing ON-delay logic.

• Industrial process machinery requiring accurate ON-delay operation.

Summary

• The H1DT-30 is a robust ON-delay timer offering wide supply voltage and precise time adjustment up to 30 minutes.

• Provides high accuracy, repeatability, and long electrical/mechanical life.

• Compact 11-pin plug-in design ensures easy integration into panels.

• Ideal for MCCs, automation systems, transformer/DG panels, and industrial control requiring reliable ON-delay timing.