Product Description:
The H3DKZ-G is a DIN rail-mounted star-delta (wye-delta) timer from the Omron H3DKZ series, 22.5 mm slim width, designed for three-phase motor start-up through a star connection followed by transfer to delta. It is a direct replacement candidate for existing H3DKZ-G installations and older panels.
Key features:
- Dedicated star-delta motor starting sequence
- Star output SPDT and delta output SPDT relay contacts
- Star time t1: 1-12 s (x1) or 10-120 s (x10)
- Transfer time t2: 0.05 / 0.1 / 0.25 / 0.5 s selectable
- 24-240 VAC/DC supply; 240-440 VAC version (GE) available
- Separate star and delta operation indicators
- 35 mm DIN rail mounting, 22.5 mm slim profile
Contact rating: standard version 5 A @ 250 VAC resistive, 5 A @ 24 VDC resistive; GE 240-440 VAC version Ith 2 A, AC-15 1.5 A @ 120 VAC, 1 A @ 240 VAC, 0.3 A @ 440 VAC. Operating temperature -20 to +55 C, protection IP30 (terminal block IP20).
Typical applications: star-delta motor starters, pump/fan/compressor start-up, conveyor and hoist motor control, switchgear and machine tool panels, replacement of aging H3DKZ-G timers in field service and maintenance.
Technical Parameters:
| Contact material |
Ag-alloy + Gold Plating |
| Degree of protection |
IP30 (terminal Block IP20) |
| Product family |
Omron H3DK / H3DKZ Series Solid-state (electronic) Timer, DIN Rail-mounted, 22.5 Mm Width |
| Terminal type |
Screw Terminals; Solid Wire Up To 2.5 Mm2; Ferrule With Insulative Sleeve; Tighten To 0.49 N.m (max 0.98 N.m) |
| Ambient humidity |
25% To 85% RH |
| Storage temperature |
-40 To +70 C (no Icing) |
| Timing accuracy |
+/-1% Of FS Max. (setting Error +/-10% FS +/-0.05 S) |
| Mounting |
35 Mm DIN Rail (EN 60715); 22.5 Mm Slim Width |
| Operating temperature |
-20 To +50 C (no Icing) |
| Features |
4-Mode Multifunction Timer Relay, Twin Flicker Timer Relay |
Applications:
Motor Control
This category includes techniques such as star-delta (also known as wye-delta) reduced-voltage motor starting, which helps to mitigate the initial inrush current when motors start. It also encompasses the management of delay timings for starting pumps, fans, compressors, and conveyors, ensuring smooth operation. Additionally, motor interlock mechanisms and run-on timing are utilized to enhance safety and efficiency during motor operation.
Sequence & Process Control
Sequence and process control covers the use of ON-delay and OFF-delay switching in various machine sequences to optimize workflow. This also involves generating interval pulses and single-shot output signals, as well as establishing signal-triggered ON/OFF delay loops. Such controls are commonly applied in regulating heating systems, lighting setups, and auxiliary circuit sequencing for reliable automation.
Signaling & Alarm
Signaling and alarm systems incorporate flashing warning lights and the cyclical operation of signal towers to alert operators. They include buzzer and alarm operations that work intermittently to avoid continuous noise pollution. Moreover, pulsed or intermittent outputs are employed to activate indicators and sirens effectively for enhanced safety communication.
Building, HVAC & Utilities
In building management and HVAC systems, delay controls are implemented for ventilation, air-conditioning, and lighting to improve energy efficiency and comfort. Valve and pump cycling plays a crucial role in water treatment and irrigation systems, helping maintain proper functions. Timing controls are also vital in the operation of elevators, escalators, and various auxiliary equipment within these domains.
OEM Machinery & Panels
Original Equipment Manufacturer (OEM) machinery and control panels serve industries such as packaging, textiles, printing, and machine tools. These panels provide general-purpose automation and can replace traditional relay-based systems. They are also essential in retrofitting and maintaining existing H3DK and H3DKZ installations to extend machinery lifecycle and enhance performance.
Packing and Shipping:
Product Packaging and Shipping for Variable Frequency Converter
The Variable Frequency Converter is carefully packaged to ensure it arrives safely and in perfect working condition. Each unit is securely placed in anti-static foam padding, then enclosed in a sturdy, corrugated cardboard box designed to withstand rough handling during transit.
Additional protective materials, such as bubble wrap or molded inserts, may be used depending on the model size and weight to prevent movement inside the box. The packaging is clearly labeled with handling instructions and product information for easy identification.
For shipping, we offer multiple options including standard ground, expedited air freight, and international shipping services. All shipments are tracked and insured to provide secure delivery and peace of mind.
Upon receiving the Variable Frequency Converter, please inspect the packaging and product for any signs of damage. In case of any issues, contact our customer service immediately for assistance.
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