FXBS1-63PV Series DC Miniature Circuit Breakers

High-performance DC protection, designed specifically for photovoltaic and energy storage systems.

The FXBS1-63PV series of DC miniature circuit breakers are specifically developed for new energy DC power distribution systems and are suitable for DC line protection up to 1500V. These products can be used in photovoltaic power generation systems, energy storage systems, wind power generation systems, communication power supplies, industrial DC control systems, and DC distribution cabinets, providing reliable overload protection, short-circuit protection, and line isolation functions.

This series of products adopts a compact modular structure, supports standard DIN rail installation, and has advantages such as high breaking capacity, excellent arc extinguishing performance, convenient installation, and stable operation, which can meet the requirements of new energy projects for safety, reliability and space utilization.

Key selling points

Real DC application parameters, rejecting false labeling.

The FXBS1-63PV series is available in different pole numbers to match different DC voltage levels: 1P for DC500V, 2P for DC1000V, and 3P for DC1500V . Product parameters are clearly labeled, ensuring accurate and reliable selection and helping customers choose the appropriate specification based on their actual system voltage.

Suitable for photovoltaic and energy storage systems

The product is designed for new energy DC scenarios and can be widely used in photovoltaic combiner boxes, energy storage cabinets, inverter front and back end protection, DC distribution boxes and industrial DC control circuits.

High breaking capacity, more reliable protection

With a rated short-circuit breaking capacity of up to 6kA, it can quickly cut off fault current under abnormal operating conditions, reduce system risks, and improve power distribution safety.

Compact modular structure

With a single pole width of 18mm, it supports multiple specifications of 1P / 2P / 3P, saving installation space and making it suitable for high-density new energy power distribution equipment.

Standard guide rail installation, easy maintenance

It adopts the TH35-7.5 standard DIN rail installation method, which is quick to install and convenient to maintain, and is suitable for various equipment environments such as distribution boxes, junction boxes, and control cabinets.

Stable lifespan performance

The mechanical life can reach 20,000 cycles, and the electrical life can reach 1,000 cycles, meeting the requirements for long-term operation.

• Features

Supports DC500V / DC1000V / DC1500V DC systems

Rated current covers 10A, 16A, 20A, 25A, 32A, 40A, 50A, and 63A.

It has overload protection and short circuit protection functions.

Definite splitting capacity 6kA

Thermomagnetic tripping structure, C-type tripping characteristics

Short arc, suitable for DC system safety protection

Modular design, small installation space

Standard DIN rail mounting for easy maintenance and replacement.

Suitable for photovoltaic, energy storage, wind power, communication power supply and industrial DC power distribution systems

• Application areas

Photovoltaic power generation system

It is suitable for the protection of photovoltaic modules, combiner boxes, inverter front-ends and DC power distribution lines, and improves the operational safety of photovoltaic systems.

Energy storage system

It can be used in energy storage battery systems, PCS front and back ends, DC distribution cabinets, etc., to provide stable DC line protection for energy storage systems.

Wind power generation system

It is suitable for DC control and power distribution systems配套 with wind power, providing reliable protection for the operation of new energy equipment.

Communication power supply system

It is suitable for scenarios such as communication base stations, power cabinets, and DC power supply systems, ensuring the safe operation of lines.

Industrial DC control system

It can be used in automated equipment, industrial control cabinets, DC power supply systems, and DC power distribution scenarios in rail transit.

Operating ambient temperature: -30℃ to +70℃

24-hour average temperature: not exceeding +35℃

Altitude: ≤2500m

Relative humidity: ≤95%

Pollution level: Level 2

Installation category: Category II or Category III

Installation location: Avoid environments with significant impact, vibration, and strong corrosion.

Selection Recommendations

When selecting a model, please confirm the specifications based on the actual system voltage, current, number of poles, wiring method, and installation environment. For technical support, please contact sales or engineering personnel for selection solutions.

The product meets the standards.

• 
  
• GB/T 14048.1 Low-voltage switchgear and controlgear - Part 1: General
  
  
• GB/T 14048.2 Low-voltage switchgear and controlgear - Part 2: Circuit breakers
  
  
• IEC 60947-1 Low-voltage switchgear and controlgear – General rules
  
  
• IEC 60947-2 Low-voltage switchgear and controlgear – Circuit-breakers
  
  

Certification and Quality Statement

Product pages can display certification marks such as CE, RoHS, and CCC/3C. It is recommended that the official website provide certificate numbers, test reports, or downloadable documents along with the certification marks to ensure customer verification and enhance brand trust.