H3Y-2 Digital Time Relay
An overview of the H3Y-2 digital time relay, detailing its features, specifications, component quality, wiring, operating modes, and dimensions.
Key Features
- ✔️ Product Name: Time Relay (8 pins/2 open and 2 closed)
- ✔️ Voltage Options: DC 12V, DC 24V, AC 220V (optional)
- ✔️ Time Range: 0.1 seconds to 99 hours
- ✔️ Time Error: 1%
- ✔️ Power Consumption: Max. 1.5VA
- ✔️ Environmental Temperature: -25℃ to 75℃
- ✔️ Permissible Voltage Range: 90-110% of rated voltage
- ✔️ Multiple delay modes
- ✔️ High-definition dual digital display
- ✔️ Power on delay functionality
- ✔️ Improved debugging mode for intuitive operation (New style)
The H3Y-2 is a small, adjustable digital time relay featuring a dual LED display that clearly shows time settings and operational status. It is designed for reliable performance with various voltage inputs.
Specifications
| Parameter | Value |
|---|---|
| Product Name | Time Relay (8 pins/2 open and 2 closed) |
| Voltage Input | DC 12V, DC 24V, AC 220V (optional) |
| Time Range | 0.1s - 99h |
| Time Error | 1% |
| Power Consumption | Max. 1.5VA |
| Environmental Temperature | -25℃ ~ 75℃ |
| Permissible Voltage Range | 90-110% of rated voltage |
High-Quality Components
The H3Y-2 relay is constructed using high-quality materials and components for durability and stable performance:
- Large digital display: Provides quick and accurate readings at a glance.
- Firm welding: Utilizes surface spot welding for good connection performance and enhanced conductivity.
- Silver alloy contacts: Offer good performance and antioxidant properties for stable operation.
- Highly Conductive Contacts: Features high-quality contact feet that are rust-proof and durable, ensuring safe operation.
- High-quality single chip: A single-chip core design ensures the stability of the internal circuitry.
- Copper core coil: Employs a suitable standard electromagnetic coil for reliable suction.
- Flame retardant base: Made from upgraded and thickened flame-retardant raw materials for safety.
Wiring Diagrams
The H3Y-2 relay supports various wiring configurations for control power supply and power input. Terminal identification is crucial for correct installation.
Control Power Supply Wiring (Example for N1 or T1/T2)
This diagram illustrates the connection of the control power supply. Key terminals include:
- Normally Closed: Terminals 1 and 8.
- Normally Open: Terminals 5 (Normally Open 1) and 4 (Normally Open 2).
- Common: Terminals 12 (Common 1) and 9 (Common 2).
- Control Power Input: Positive connected to Terminal 13, Negative connected to Terminal 14.
Power Input Wiring
This diagram shows the power input connections. The relay can be connected together for power input.
- Power Input: Positive connected to Terminal 13, Negative connected to Terminal 14.
- Output Load: Connections are made via the common terminals (12, 9) and normally open/closed terminals (1, 4, 5, 8) depending on the mode.
Note: Specific terminal functions may vary slightly based on the exact model variant (e.g., H3Y-2 vs. H3Y-4) and the intended application. Always refer to the specific model's markings.
Operating Modes and Settings
The H3Y-2 offers flexible operation with multiple modes and adjustable time bases. The dual display and two buttons (S1, S2) facilitate easy setting.
Operating Modes:
- Y: Power-on delay (Energised delay)
- C: Delay release
- X: Cycle delay
- LC: Cycle delay time setting (allows setting the number of cycles, up to 99 times)
Operating Time Base Table:
The time base determines the unit and range of the time setting:
- 0.1S: 0.1s - 9.9s
- 0.1M: 0.1m - 9.9m
- 0.1H: 0.1h - 9.9h
- S: 1s - 99s
- M: 1m - 99m
- H: 1h - 99h
Setting Procedures:
- Mode Setting: Long press the left button [Button S1] for 3 seconds. The current mode will blink. Cycle through available modes by continuing to press [Button S1]. Release the button when the desired mode is displayed. The setting is saved automatically after 5 seconds of inactivity (no blinking).
- Time Base Setting: Long press the right button [Button S2] for 3 seconds. The current time base will flash. Cycle through available time bases by continuing to press [Button S2]. Release the button when the desired time base is displayed. The setting is saved automatically after 5 seconds of inactivity.
- Digital Setting: The time value is set using the buttons. Typically, one button controls the tens digit (or higher digits) and the other controls the single digit. The new style offers a more intuitive digital setting.
Model Comparison: Older vs. New Style
The H3Y-2 has evolved, with newer models offering enhanced usability:
- Older Models: Often featured a single display and simpler button controls (+/-). Supported Power on delay, Delay release, Cycle delay, and Single cycle delay.
- New Style Models: Feature a high-definition dual-display panel for more intuitive operation. They support Power on delay, Delay release, Cycle delay, and Cyclic delay time setting (up to 99 times). The button press debugging mode is also improved for better user experience.
Physical Dimensions
The H3Y-2 time relay, when mounted on its base, has the following approximate dimensions:
- Width: 22mm / 0.87 inches
- Depth: 75mm / 2.95 inches
- Height: 90mm / 3.54 inches
These dimensions are typical for a standard 8-pin relay socket installation.
