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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-A dual power supply distribution box
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Product Description
The XLF-A cabinet is designed for "zero-tolerance" power outage scenarios. It has a built-in PC-grade dual power automatic transfer switch (ATS) that can seamlessly switch between the main and backup power supplies within 50 ms, ensuring continuous power supply for critical loads such as fire pumps, elevators, monitoring systems, IDC, and hospital operating rooms.
1. Technical Parameters
• Rated operating voltage: AC 380 V (three-phase four-wire)
• Rated operating current: 400 A, 630 A, 800 A, 1000 A, 1600 A (five options available)
• Short-time withstand current: Icw = 50 kA / 1 s
• Automatic switching time: ≤ 50 ms (adjustable delay 0.1–30 s)
• Protection level: Indoor IP42 (optional IP54/Outdoor IP65)
• Mechanical life: ≥ 10,000 times; Electrical life: ≥ 6,000 times
2. Structure and Configuration
• Cabinet: 2 mm high-quality cold-rolled steel sheet, fully welded, epoxy powder coating, rust prevention grade ≥ 10 years; double front door ≥ 135°, viewing window for observing ATS status.
• Busbar: Full copper TN-S system, main busbar rated current ≥ 1.25 times the load current; busbar temperature rise ≤ 60 K.
• Unit Layout:
– Top: Incoming isolator switch + SPD secondary lightning protection module
– Middle: PC-grade ATS (with mechanical/electrical double interlock)
– Bottom: Outgoing molded case circuit breaker (adjustable trip) + smart meter + communication terminal
• Secondary control: DC 24 V fire linkage interface, RS-485 remote "four remote" (remote measurement/remote signaling/remote control/remote adjustment).
3. Operating Environment
Ambient temperature: -5 ℃ ~ +40 ℃ (24 h average ≤ 35 ℃); Altitude ≤ 2000 m; Relative humidity ≤ 50 % (+40 ℃); Seismic intensity ≤ 8 degrees; No violent vibration, no explosive gases.
4. Typical Dimensions (H×W×D)
2200 mm × 800 mm × 600 mm (standard type, supports non-standard customization)
5. Certifications and Standards
GB/T 7251.12, IEC 61439-1/6, GB/T 14048.11 (ATS specific standard), passed national mandatory 3C certification and type test (TTA).
6. Application Scenarios
• High-rise building fire pumps, sprinkler pumps, smoke exhaust fans
• Hospital operating rooms, ICU, data center UPS input cabinets
• Airports, subways, tunnels, industrial and mining enterprises primary load power supply
• Ships, shore power, communication base stations, and other places requiring uninterrupted power supply
7. Ordering Guide
Please provide: primary system diagram, main/backup power capacity, switching method (automatic self-restoration/mutual backup), cabinet color and installation method (floor-standing/wall-mounted). Optional functions are supported:
• 7″ touch screen real-time power display
• 4G/Ethernet remote monitoring
• Fire cut-off (separate excitation trip) interface
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