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About UsHunan Chengyuan Electrical CO.,LTD stock code 872783 was founded in 1999, is a photovoltaic new energygeneration, energy storage, charging integrated system solutions
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XLF-B dual power supply distribution box
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Product Description
XLF-B Dual Power Distribution Box
I. Product Positioning
XLF-B is a compact dual power distribution box upgraded from XLF-A. It has a built-in PC-level automatic transfer switch (ATS) that can switch between mains and backup power within 50 ms, providing the last line of power protection for loads that cannot be interrupted.
II. Core Technical Parameters
| Item | Value |
| Rated Operating Voltage | AC 380 V (three-phase four-wire) |
| Rated Operating Current | 100 A / 160 A / 250 A / 400 A (four options available) |
| Rated Frequency | 50 Hz |
| Short-time withstand current | Icw = 15 kA / 1 s |
| Automatic Switching Time | ≤ 50 ms (adjustable delay 0–30 s) |
| Mechanical Life | ≥ 10,000 times |
| Electrical Life | ≥ 6,000 times |
| Protection Level | Indoor IP42 |
III. Structure and Configuration
• Cabinet: 1.5 mm cold-rolled steel plate bending and welding, electrostatic epoxy spraying, single front door opening ≥ 120°, with viewing window, allowing for direct observation of the ATS position and indicator lights.
• Internal: PC-level ATS + miniature circuit breaker/plastic-cased outgoing circuit + SPD secondary lightning protection + secondary terminal block; all components are installed on a removable 20 mm modular mounting board for easy maintenance.
• Dimensions (H×W×D): 1700 × (600~800) × (350~500) mm, can be wall-mounted or floor-standing.
• Wiring: Top/bottom wiring is available, zero and ground busbars are integrated, and ground resistance ≤ 4 Ω.
• Optional functions: Fire linkage DC 24 V interface, RS-485 remote "four remote" control, 7″ touch screen power monitoring.
IV. Applicable Scenarios
High-rise buildings, post and telecommunications, industrial and mining enterprises, shipping, hospital operating rooms, data centers, subway stations, and other important occasions requiring uninterrupted power supply.
V. Ordering Instructions
Please provide: primary system diagram, main switch current, switching method (automatic self-restoration / mutual backup), installation method (wall-mounted / floor-standing), and color requirements. OEM branding and custom sizes are supported.
Key word: Photovoltaic | Semiconductor | Silicon Carbide | Sapphire | Magnetic Materials | Silicon Wafer Cutting Service
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Room 504, Building 8, Xincheng Science and Technology Park, 588 Yuelu West Avenue, Changsha High tech Development Zone, Hunan Province, China