VaneAims FXBZ7-63PV DC Solar Mini Circuit Breaker User Manual

1. Introduction

The VaneAims FXBZ7-63PV Series DC Solar Circuit Breaker is designed for systems with a rated current of 63A or less. It provides essential overload and short-circuit protection in DC distribution systems and electrical equipment. This product is widely applicable in photovoltaic DC circuits, including mining, ships, UPS systems, high-power electric motorcycles, modified vehicles, lithium-ion racing cars, RVs, solar energy systems, supercapacitors, wind energy, and electric vehicles.

VaneAims FXBZ7-63PV DC Circuit Breaker in 1P, 2P, 3P, and 4P configurations — Figure 1: VaneAims FXBZ7-63PV DC Circuit Breaker (various pole configurations)

2. Safety Information

WARNING: Disconnect the power supply before wiring.

This product is a professional electrical component. Installation and maintenance must be carried out by qualified electrical personnel to ensure safety and proper function.

Do not disassemble the circuit breaker without permission.

3. Product Features

Fire-retardant & Impact-resistant Housing: The shell is made of high-performance flame-retardant material, offering excellent impact resistance and ensuring stable operation in harsh environments.
Enhanced Safety for Photovoltaic Applications: Specifically designed for photovoltaic systems, with different current specifications providing comprehensive protection for various system configurations.
Ergonomic Safety Handle: Features a classic original design with an ergonomic structure for comfortable operation and clear ON/OFF status indication.
Visible Status Window: Equipped with a transparent indicator window to visually confirm the circuit breaker's working status (ON/OFF) at a glance.
Standard DIN Rail Mounting: Compatible with standard 35mm DIN rails for quick and easy installation in distribution cabinets.
High Breaking Capacity: With a rated ultimate short-circuit breaking capacity (Icu) of 6000A, it effectively cuts off fault currents and protects equipment safety.

Diagram showing key features: Visual Indicator Window, Fire Resistant, Precision Crafted, Ergo-Wide Crack-Resistant Handle, Buckle — Figure 2: Key features of the FXBZ7-63PV Circuit Breaker

Product advantages: For PV Energy, Circuit Protection, Fire Retardant, Superior Quality — Figure 3: Product advantages for PV systems

4. Technical Specifications

Item	Details
Product Name	DC Solar Circuit Breaker
Brand	VaneAims
Model	FXBZ7-63PV
Pole Number	1P / 2P / 3P / 4P
Rated Current	6A / 10A / 16A / 20A / 32A / 40A / 63A
Rated Voltage	1P: DC 300V; 2P: DC 600V; 3P: DC 900V; 4P: DC 1200V
Rated Impulse Withstand Voltage (Uimp)	6kV
Rated Ultimate Short-Circuit Breaking Capacity (Icu)	6000A (Icu=Ics)
Execution Standards	GB/T14048.2, IEC60947-2
Installation Method	DIN rail mounting (compatible with standard 35mm DIN rail)
Usage Frequency	50Hz
Breaking Type	Type A

System Compatibility

Pole Number	Rated DC Voltage	Applicable System
1P	DC 300V	Single-phase systems below 3KW
2P	DC 600V	Single-phase 3-5KW systems
3P	DC 900V	Three-phase systems below 5KW
4P	DC 1200V	Three-phase 3-25KW systems

5. Product Dimensions

Pole Number	Width (mm)	Height (mm)	Depth (mm)
1P	18	88	71.5
2P	36	88	71.5
3P	54	88	71.5
4P	72	88	71.5

Diagram showing side, 4P, 1P, 2P, and 3P dimensions of the circuit breaker — Figure 4: Product Dimension Diagram

6. Installation

Mounting: Install the circuit breaker onto a standard 35mm DIN rail. Ensure the installation is firm and secure.
Wiring: Connect the wires correctly according to the polarity marks on the device. Refer to the wiring diagram below.
Terminal Connection: The circuit breaker features high-conductivity copper terminals with an anti-loosening design for reliable wire connection and low contact resistance.

Detailed design showing terminals, DIN-rail mounting, and visible window — Figure 5: Detailed design highlighting terminals and DIN-rail mounting

Exhibition of workmanship showing insulation spacer — Figure 6: Insulation spacer for enhanced safety

7. Wiring Diagram

This product is non-polar, meaning there is no distinction between positive and negative for incoming and outgoing wires. Both top-in and bottom-out wiring are acceptable. Connect the positive wire to the '+' terminal and the negative wire to the '-' terminal, ensuring the load is correctly placed in the circuit.

Wiring diagrams for 1P, 2P, 3P, and 4P circuit breakers, showing positive and negative wire connections and load placement — Figure 7: Wiring Diagrams for 1P, 2P, 3P, and 4P configurations

8. Operation

Turning ON: Push the handle up to turn ON the circuit.
Turning OFF: Pull the handle down to turn OFF the circuit.
Status Indication: The visible window will display the corresponding ON/OFF status.

Product real shots showing various angles of the circuit breaker — Figure 8: Product real shots, including view of the visible window

9. Maintenance

Regularly check the terminal connections to prevent loosening and overheating.
Do not disassemble the circuit breaker without proper authorization.
Ensure the environment around the circuit breaker is clean and free from obstructions to allow for proper heat dissipation.

10. Troubleshooting

If the circuit breaker trips frequently or fails to operate correctly, consider the following:

Overload: Check if the connected load exceeds the rated current of the circuit breaker. Reduce the load if necessary.
Short-Circuit: Inspect the wiring for any short-circuits. Correct any faulty connections.
Loose Connections: Verify that all terminal connections are tight and secure.
Environmental Factors: Ensure the operating environment is within the specified temperature and humidity ranges.

If issues persist after checking these points, consult a qualified electrician or contact customer support.

11. User Tips

Always ensure the circuit breaker's rated current and voltage match the requirements of your photovoltaic system.
For optimal performance and safety, consider professional installation.
Keep the visible status window clean for easy monitoring of the ON/OFF status.

12. Frequently Asked Questions

Q: Are you a trading company or manufacturer?: A: We are a factory.
Q: How long is your delivery time?: A: It is according to quantity. Generally, we arrange the lead time within 10 days.
Q: Do you provide samples? Is it free or extra?: A: Yes, we can supply the sample if we have ready parts in stock, but the customers have to pay the sample cost and the courier cost.
Q: What is your terms of payment?: A: TT, PAYPAL, WESTERN UNION, LC
Q: If you make poor quality goods, will you refund our fund?: A: As a matter of fact, we won't take a chance to do poor quality products. Meanwhile, we manufacture goods quality products to meet your satisfaction.
Q: What drawing format you need for production?: A: 2D, 3D both available. 2D like PDF, CAD, JPG etc. 3D like STP, IGS, STL, SAT, PRT, IPT etc.
Q: Can you produce according to the samples?: A: Yes, we can produce by your samples or technical drawings. We can build the molds and fixtures.
Q: How to contact sales person?: A: Please send us inquiry or e-mail directly. Or you can talk with us online by Alibaba, wechat, skype, whatsapp, QQ etc.

13. Warranty and Support

For detailed warranty information and customer support, please refer to the official product documentation or contact VaneAims directly. A user manual in PDF format is available for download:

View User Manual (PDF)