New Original Omron H3DT-L1 Omron H3DT Series DIN Rail Timer Relay
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New Original Omron H3DT-L1 H3DT Series DIN Rail Timer Relay
1. Product Overview
The Omron H3DT-L1 is a brand-new genuine DIN rail-mounted electronic timer relay belonging to the mature H3DT product family, specially engineered for low-space industrial control cabinet timing applications. This slim modular timer adopts standard 35 mm top-hat DIN rail mounting structure, focusing on star-delta motor startup delay logic as its core application scenario, and it also supports general industrial sequential timing control for automated machinery, conveyor systems, lighting control panels and auxiliary PLC peripheral timing logic.
Built with a high-stability internal crystal timing circuit, the H3DT-L1 delivers consistent, repeatable delay performance under fluctuating industrial voltage and temperature environments. It integrates a single-pole double-throw (SPDT) relay contact output with complete surge suppression circuits to protect peripheral contactor coils and low-voltage control components. The front panel is equipped with an adjustment knob and dedicated status LED indicators, enabling intuitive parameter configuration and real-time working state monitoring without dismounting the unit from the DIN rail. All units follow Omron’s strict original manufacturing standards and meet global industrial electrical safety certifications for domestic and export automation equipment.
2. Main Functions
- Star-delta motor soft start dedicated delay: Optimized timing curve for three-phase motor star-delta conversion to reduce startup current impact.
- Multi-range adjustable time delay: Continuous time calibration covering short to medium timing intervals via front rotary knob.
- Standard snap-on DIN rail installation: Tool-free quick mounting and removal inside electrical cabinets to shorten wiring and maintenance time.
- SPDT relay contact output: Simultaneously drives two independent opposite logic circuits (normally open / normally closed).
- Wide universal power supply compatibility: Compatible with multiple AC and DC input voltages to unify spare part inventory for equipment manufacturers.
- Real-time LED status indication: Separate lights for power supply status and timing operation progress for fast on-site fault diagnosis.
- Built-in surge absorption protection: Eliminates reverse electromotive force generated by contactor coil cut-off to avoid internal circuit damage.
- High anti-interference capability: Internal filtering circuit resists electromagnetic interference from inverters, servo drives and high-power motors.
- Maintenance-friendly front adjustment: Time parameters can be modified directly on the front panel without detaching the timer from rail terminals.
- Compact slim housing design: Minimal width saves valuable internal cabinet space for dense modular component arrangement.
3. Technical Characteristics
| Technical Parameter | Detailed Specification |
|---|---|
| Model Name | H3DT-L1 (H3DT Series DIN Rail Timer Relay) |
| Mounting Standard | 35 mm industry standard top-hat DIN rail |
| Core Timing Mode | Star-delta startup delay (primary); general power-on delay (secondary) |
| Adjustable Timing Range | 0.5 s ~ 60 s continuous adjustable |
| Supported Supply Voltages | AC 24 V, AC 100~240 V, DC 12 V, DC 24 V |
| Rated Power Consumption | Max 2.6 VA (AC input); Max 1.3 W (DC input) |
| Contact Structure | 1 Form C (SPDT: 1NO + 1NC) |
| Rated Contact Load | 5 A 250 VAC resistive load; 3 A 30 VDC resistive load |
| Timing Accuracy | ±1.5% of full scale at reference temperature 25 °C |
| Insulation Resistance | ≥ 1000 MΩ (measured under 500 VDC) |
| Dielectric Withstand Voltage | 2000 VAC between power circuit and contact circuit, 1 minute duration |
| Mechanical Service Life | 10,000,000 switching cycles |
| Electrical Service Life (5 A resistive load) | 100,000 switching cycles |
| Operating Ambient Temperature | -20 °C ~ +55 °C |
| Storage Temperature Range | -40 °C ~ +70 °C |
| Vibration Resistance | 10–55 Hz, 0.75 mm amplitude, 2 hours test on X/Y/Z three axes |
| Shock Resistance | 100 m/s² impact, 10 shocks per six directions |
| Global Safety Certifications | UL, CSA, VDE, CE compliance for industrial low-voltage control |
4. Product Dimensions and Weight
4.1 Overall External Dimensions Table
| Dimension Item | Exact Measurement |
|---|---|
| Module Total Width | 17.5 mm |
| Overall Height | 90 mm |
| Cabinet Insertion Depth | 60 mm |
| Terminal Uniform Pitch | 5 mm |
| Front Panel Adjustment Area Width | 12 mm |
4.2 Weight Specifications
- Net weight of single bare H3DT-L1 unit: 43 g
- Gross weight with original individual plastic packaging: 49 g
5. Core Technical Advantages
- Star-delta dedicated optimization: Pre-calibrated timing logic specifically for three-phase motor soft start, no extra secondary parameter modification required.
- Ultra-slim 17.5 mm narrow body: Supports dense multi-timer layout inside compact control cabinets, compared with wider traditional timing relays.
- Wide dual AC/DC power input versions: One model fits most mainstream industrial power supply standards worldwide.
- All-in-one protective circuit: Integrated surge absorption and EMI filtering, removing the need for external auxiliary protection components.
- Visible dual LED indicators: Operators can instantly judge power failure, standby status and timing running state during equipment debugging.
- Dustproof enclosed front casing: Blocks metal dust, oil mist and workshop particulate matter from polluting internal timing circuit boards.
- Low constant power consumption: Generates less continuous heat for 24-hour non-stop production line operation.
- Unified terminal layout with other H3DT series: Consistent wiring rules simplify technician operation and part replacement.
6. Ten Omron Similar-Function DIN Rail Timer Relay Products
All listed models are original Omron DIN rail mount timing relays with matching core functions: cabinet timing delay control, relay contact output, modular rail installation for industrial automation equipment
- Omron H3DT-A
Basic power-on delay model of H3DT series, single fixed timing logic, identical 17.5 mm slim housing size as H3DT-L1.
- Omron H3DT-B
Signal trigger delay timer, designed for sensor signal activated timing control with SPDT contact output.
- Omron H3DT-C
Cyclic flashing interval timer, for intermittent control of warning lights, conveyor intermittent operation.
- Omron H3DT-D
Power-off delay timer, retains timing function after main power cut for motor braking control scenarios.
- Omron H3DT-F
Multi-mode universal H3DT timer, integrates power-on, signal, flashing and power-off delay modes in one unit.
- Omron H3DK-M1
Classic multi-function DIN rail timer relay, wider 22.5 mm width, expanded multi-section timing range selection.
- Omron H3DK-G
Special star-delta motor startup timer, longer maximum adjustable timing range for large-power three-phase motors.
- Omron H3DK-S1
High-precision short millisecond-level delay timer, for high-speed automated assembly machine signal timing control.
- Omron H3YN-2
Ultra-narrow miniature DIN rail timer, only 12.5 mm width for extremely compact cabinet layout spaces.
- Omron H5CX-A
Digital display DIN rail timer relay with digital screen, numerical precise time setting instead of mechanical adjustment knobs.
WHO WE ARE
Sobre nosotros
Located in Kunshan, China, Atifts Technology Co., Ltd. is a well-known enterprise specializing in electronic components distribution. We specialize in the sales of global brands of industrial automation components, with a wealth of experience in foreign product agents, and many of the world's leading manufacturers such as Keens, Schneider, SMC, ABB, Siemens, and other world-renowned manufacturers to establish a long-term and stable relations of cooperation.
Atifts Technology Co., Ltd. @ 2024
Over the years, we have always adhered to the "pioneering, pragmatic, standardized, innovative" management philosophy, and constantly promote the close integration of products and market demand. We firmly believe that only by constantly exploring new market areas, doing a good job in every detail, standardizing business processes, and continuously innovating products and services can we ensure that our products are more adaptable to market changes and meet the diversified needs of our customers.
Since the founding of the company, we have always adhered to the core concept of "survival by quality", and are committed to providing customers with high-quality electronic components. At the same time, we take specialized R & D manufacturing as the goal, market-oriented development strategy to ensure that our products are always in the forefront of the industry.
With excellent product quality, professional technical service and good market reputation, Kunshan Autofits Technology Co.,Ltd. has won the trust and support of our customers. We look forward to working with more partners hand in hand, to achieve long-term win-win relationship, and jointly promote the prosperity of the electronic components industry.
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We are located next to Shanghai, the largest city in China, and Kunshan, the first economic county in China. With convenient transportation and developed logistics, it provides a good geographical advantage for our electronic components sales business.
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We are committed to providing many types and brands of electronic components, including but not limited to Sensors, Switches & Relays, Connectors, Circuit Protectio, Power Supplier & Cable, etc. We have established relationships with many well-known electronic component manufacturers. We have established long-term and stable relationships with many well-known electronic component manufacturers to ensure that the products we sell are of reliable quality and reasonable price.
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