1. Introduction
The OONO MD-D1410-1 is a versatile 16Amp 48V 2x12 position screw terminal block distribution module designed for efficient power and signal distribution in various electronic and electrical applications. This module supports multiple extension connections, making it suitable for complex wiring setups. It features high-quality, UL CE CQC certified terminal blocks and a durable FR-4 glass fiber PCB, ensuring reliable performance.

2. Specifications
Below are the detailed technical specifications for the OONO MD-D1410-1 terminal block distribution module:
| Feature | Detail |
|---|---|
| Model Number | MD-D1410-1 |
| Rated Current | 16 Amp (total input or output) |
| Maximum Voltage | 48V |
| Terminal Block Type | Screw Terminal |
| Terminal Pitch (A/B blocks) | 7.5mm / 0.295" |
| Terminal Pitch (A1~B12 blocks) | 5.0mm / 0.197" |
| Wire Range | 26AWG ~ 12AWG / 2.5mm² |
| Strip Length | 7mm |
| Screws | M3, steel, Cr3+ Zn plated |
| Pin Header and Cage | Brass |
| PCB Material | FR-4 glass fiber |
| Certifications | UL CE CQC certified terminal blocks |
| Customization | Yes |
| Origin | Mainland China |
3. Package Contents
The package for the OONO MD-D1410-1 module typically includes:
- 1x OONO 16Amp 48V 2x12 Position Terminal Block Distribution Module
- 2x Mounting Screws
- 2x Nylon Spacers

4. Installation and Wiring
The OONO terminal block module is designed for straightforward installation and wiring. Always ensure power is disconnected before making any connections.
4.1. Terminal Overview
- A / B Terminal Blocks: These are the main input/output terminals, typically used for connecting the primary power source or main signal lines. They have a pitch of 7.5mm.
- A1~B6 / A7~B12 Terminal Blocks: These are the distribution terminals, used for connecting individual loads or signal lines. They have a pitch of 5.0mm. The module supports 12 positions for each A and B line, totaling 24 distribution points.

4.2. Wiring Procedure
- Prepare Wires: Strip approximately 7mm of insulation from the ends of your wires. Ensure the wire gauge is within the supported range (26AWG ~ 12AWG).
- Connect Main Lines: Connect your main power or signal lines to the A and B terminal blocks. These are located at the ends of the module.
- Connect Distribution Lines: Connect your individual loads or signal lines to the A1-B12 terminal blocks. Each A terminal (A1, A2, etc.) is connected to the main A line, and each B terminal (B1, B2, etc.) is connected to the main B line.
- Secure Connections: Use a suitable screwdriver to tighten the M3 screws on each terminal block, ensuring a firm and secure connection. Do not overtighten.
- Mounting: Use the provided screws and nylon spacers to securely mount the module to a surface if required.
4.3. Connection Diagrams
Refer to the following diagrams for typical connection methods and the internal schematic of the module.


5. Operation
Once properly wired, the OONO terminal block module functions as a passive distribution point. It distributes the input voltage/signal from the main A and B terminals to the corresponding A1-B12 output terminals. Ensure that the total current drawn by all connected loads does not exceed the module's rated current of 16 Amp and that the voltage remains within the 48V maximum.
6. Dimensions
The physical dimensions of the OONO MD-D1410-1 module are provided in the diagram below. All measurements are in millimeters (mm).

- Overall Length: Approximately 97.0 mm
- Overall Width: Approximately 22.0 mm
- Overall Height: Approximately 17.6 mm
- Mounting Hole Diameter: 3.5 mm (2 PCS)
- Screw Type: M3
7. User Tips
While no specific user tips were available from customer reviews or Q&A, here are some general recommendations for optimal use:
- Verify Connections: Before applying power, double-check all wiring connections to ensure they are secure and correctly aligned with the schematic.
- Load Balancing: When distributing power, try to balance the load across the available terminals to prevent overloading any single connection point or the module itself.
- Environmental Considerations: Install the module in a dry, well-ventilated area, away from excessive heat, moisture, or corrosive substances.
- Wire Management: Use proper wire management techniques (e.g., cable ties) to keep wiring neat and prevent accidental disconnections or shorts.
8. Troubleshooting
If you encounter issues with the terminal block module, consider the following basic troubleshooting steps:
- No Power/Signal:
- Check the main power source or signal input to the A/B terminals.
- Verify all wire connections are tight and correctly seated.
- Ensure the connected load is functioning correctly.
- Intermittent Connection:
- Inspect wires for damage or fraying.
- Re-tighten all terminal screws.
- Overheating:
- Ensure the total current draw does not exceed 16 Amp.
- Check for any short circuits in the connected loads or wiring.
If problems persist, consult a qualified electrician or contact the manufacturer for support.
9. Maintenance
The OONO terminal block module requires minimal maintenance:
- Regular Inspection: Periodically inspect the module and its connections for any signs of wear, corrosion, or loose wires.
- Cleaning: If necessary, gently clean the module with a dry, soft cloth. Avoid using liquids or abrasive cleaners.
- Environmental Protection: Ensure the operating environment remains within suitable conditions (dry, moderate temperature) to prolong the module's lifespan.
10. Warranty and Support
For information regarding warranty coverage, technical support, or service, please refer to the seller's policies or contact the manufacturer directly. Keep your purchase receipt as proof of purchase.





