1. Safety Information
Warning: To avoid danger of suffocation, keep this bag away from babies and children. Do not use this bag in cribs, beds, carriages, or play pens. This bag is not a toy.
Precautions
- Do not place the device near flammable materials.
- Ensure adequate ventilation during operation.
- Disconnect from power and store properly when not in use for extended periods.
Recycling Information
This appliance, its accessories, cords, and batteries are recyclable. Please dispose of them responsibly at designated collection points. Prioritize repair or donation of your device.
Packaging elements should be separated and placed in the sorting bin.
2. Product Overview
The TOMZN TOB7Z-63 DC MTS (Manual Transfer Switch) Dual Power Circuit Breaker is designed for DC rated voltage up to 1000V and rated current up to 63A. It provides overload and short circuit protection and is suitable for infrequent operation in DC applications such as communications and photovoltaic systems.
When the load in the circuit is too high, the device will automatically cut off the circuit to prevent damage.
Key Features
- Overload and Short Circuit Protection
- Wide Operating Handle for comfortable use
- Visualization Window with Red and Green Indicators for clear status
- Buckle Design for secure installation
- CE Certified for safety and quality
- Flame-retardant Shell for enhanced safety
- Interlocking chain accessories for free conversion on both sides
3. Specifications
| Attribute | Value |
|---|---|
| Model Number | TOB7Z-63 |
| Type | Mini Circuit breaker |
| Pole number | 2P+2P |
| Rated Current (In) | 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A |
| Rated Voltage (Ue) | 2P: 1000V, 4P: 1000V |
| Insulation Voltage (Ui) | 1000V |
| Rated Breaking Capacity (Ics=Icu) | 6000A |
| Rated Impulse Withstand Voltage (Uimp) | 6KV |
| Thermo-magnetic Release Characteristic | B:6In±20%, C:12In±20% |
| Mechanical Life | 20000 cycles |
| Contact Position Indicator | Yes |
| Protection Degree | IP20 |
| Reference Temperature for Thermal Element Setting | 30°C |
| Ambient Temperature (daily average ≤35°C) | -5°C to +40°C |
| Storage Temperature | -25°C to +70°C |
| Terminal Connection Type | Cable/U-type busbar/Pin-type busbar |
| Terminal Size Top/Bottom for Cable | 25mm² 18-3 |
| Tightening Torque | 3.0N·m 22 |
| Mounting | ON DIN rail FN 60715(35mm) by means of fast clip device |
| Connection | Top and bottom |
| EU LVD Voltage | High voltage: Above 50Vac or 75Vdc |
| Wireless Functionality | No |
| Includes Battery | No |
| High-concerned Chemical | None |
| Customization | Yes |
| Origin | Mainland China |
| Certification | CE |
Dimensions
Tripping Characteristics
4. Installation
Installation of this device should only be performed by a qualified electrical professional to ensure safety and proper functionality.
- After receiving the product, have an electrical professional perform the operation.
- Connect the equipment in accordance with the wiring diagram specifications provided.
- According to the instructions, adjust the equipment parameters as needed.
Wiring Diagram
Mounting
The device is designed for mounting on a 35mm DIN rail using a fast clip device.
5. Operating Instructions
The TOB7Z-63 is a manual transfer switch, meaning you manually switch between power sources.
Switch Operation
- Switch Up: Indicates the line is connected and active.
- Switch Down: Indicates the line is disconnected and in a closed state.
- Working Principle: The switch is designed to ensure that power is turned off from one source first, and then the power supply is switched to the other source. This prevents short circuit problems during transfer.
Visualization Window
The device features a visualization window with red and green indicators:
- Red Indicator: Indicates the line is connected.
- Green Indicator: Indicates the line is disconnected.
6. Maintenance
The TOMZN TOB7Z-63 circuit breaker requires minimal maintenance. Follow these guidelines to ensure its longevity and safe operation:
- Regular Inspection: Periodically check the device for any visible damage, loose connections, or signs of overheating.
- Cleaning: Keep the device clean and free from dust and debris. Use a dry, soft cloth for cleaning. Do not use liquids or abrasive cleaners.
- Ventilation: Ensure that the installation area has adequate ventilation to prevent overheating during operation.
- Storage: If the device is not in use for extended periods, disconnect it from the power source and store it in a dry, cool place, away from flammable materials.
- Professional Check: For any suspected malfunction or after a significant electrical event (e.g., a major overload or short circuit), have the device inspected by a qualified electrical professional.
7. Troubleshooting
The TOB7Z-63 is designed to automatically protect your circuit. If the device trips or fails to operate as expected, consider the following:
- Automatic Cut-off: If the device automatically cuts off the circuit, it indicates that the load in the circuit was too high (overload) or a short circuit occurred. Identify and resolve the cause of the overload or short circuit before attempting to reset the breaker.
- Failure to Transfer: If the switch does not transfer power between sources, ensure that the operating handle is moved firmly and completely to the desired position. Check for any physical obstructions.
- No Indication: If the red/green indicators are not functioning, check the power supply to the device and ensure all connections are secure.
Important: If you are unsure about any troubleshooting steps or suspect a serious electrical issue, always consult a qualified electrical professional.
8. User Tips
- This switch is ideal for managing power from two DC sources, such as two battery banks or two solar inverters. Remember to use a combiner to connect the outputs if necessary.
- When connecting, ensure you follow the wiring diagram precisely. Pay attention to whether connections should be straight through or diagonally as indicated on the switch itself.
- Many users find this product to be of excellent quality and easy to install.
9. Applicable Regulations and Standards
This product complies with the following regulations and standards:
- Low Voltage Directive (LVD) 2014/35/EU
- EN IEC 60947-1:2021
- EN IEC 60947-3:2021
- CE Certification
10. Warranty and Support
For any questions, technical support, or warranty claims, please contact the seller or manufacturer directly. Ensure you have your purchase details and product model number (TOB7Z-63) ready.
A detailed user manual in PDF format is also available for download: View User Manual (PDF)