OMRON H3DK-F Multifunctional cyclic time relay (Twin Timer)

OMRON H3DK-F Cyclic Time Relay

The OMRON H3DK-F is a professional dual-mode timer (Twin Timer) designed for precise control of cyclic processes.

This unique model offers independent adjustment of the ON and OFF times, allowing for flexible equipment operation schedules.

H3DK series is a modern replacement for older series (e.g., H3DE), featuring improved insulation and a wider voltage range.

Key Features:

• Device Type: Multifunctional cyclic time relay (Twin Timer).

• Setting Range: Wide range from 0.1 sec to 1200 hours (divided into 10 time subranges).

• Supply Voltage: Universal 24...240 V AC/DC (allows use in any network without additional converters).

• Contact Configuration: 1 changeover contact (SPDT).

• Switching Capacity: 5 A at 250 V AC (resistive load).

• Mounting: For a standard DIN rail (module width 22.5 mm).

• Indication: LED status indicators (Power/Run).

Operating Modes:

The device supports two basic cycle start modes, which are selected using a switch on the front panel:

1. Flicker OFF Start: The cycle begins with a pause (OFF time), then the load is turned on (ON time).

2. Flicker ON Start: The cycle begins with the load being activated (ON time), then a pause (OFF time).

Technical Advantages:

• High Accuracy: Response error is no more than 1 pm of full scale.

• Electromagnetic Compatibility: Conforms to EN61812-1 standards, guaranteeing protection against interference in industrial networks.

• Safety: The terminal block design protects against accidental contact with live parts. • Reliability: Designed for operation in harsh temperature conditions (-20 to +55°C).

Applications:

• Automation of ventilation and air conditioning systems.

• Control of industrial pumps and compressors.

• Periodic filter cleaning and system purging.

• Automatic irrigation and feeding systems in agriculture.

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