XL-21 New Type Power Distribution Cabinet

Overview

TheXL-21 New TypePower Distribution Cabinetis a modernized low-voltage power distributionsolution designed for industrial, commercial, and infrastructure applications. This cabinet is engineered to offer high safety, reliability, and operational efficiency, making it an ideal choice for controlling and distributing power in various electrical systems.

The XL-21 powerdistribution cabinetmeets the requirements ofGB 7251.1andIEC 60439-1, ensuring compliance with international safety and performance standards. It is built withhigh-quality insulation materialsand features acompact, modular designthat enhances usability, durability, and protection against environmental factors.

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Product Features

• Standard Compliance:Fully meets theGB 7251.1andIEC 60439-1standards for low-voltage switchgear and controlgear.
• Advanced Circuit Protection:Equipped with amolded case circuit breaker (MCCB)that features ahigh breaking capacity, short flying arc design, and overload/short-circuit protection.
• Multiple Safety Functions:Integratedoverload, short-circuit, undervoltage, and phase failure protection, ensuring a stable power supply for critical equipment.
• Flexible Control Options:Supportslocal and remote control, making it suitable for automated power management systems.
• Robust Construction:The cabinet frame is made of high-strengthgalvanized steel, providing excellent corrosion resistance and mechanical strength.
• User-Friendly Design:Designed foreasy maintenance, with clear wiring layouts, removable panels, and well-organized cable management.

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Technical Parameters

Number	Name	Unit	Specification
1	Main Circuit Rated Voltage	V	AC:380
2	Auxiliary Circuit Rated Voltage	V	AC:220, 380
3	Rated Frequency	Hz	50
4	Rated Insulation Voltage	V	660
5	Rated Current	A	≤800A

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Ambient Conditions

• Temperature Range:-5°C to +40°C, with an average temperature within 24 hours not exceeding +35°C.
• Altitude:Not more than 2000m above sea level.
• Humidity Tolerance:Maximum50%relative humidity at +40°C, with allowances forhigher humidity at lower temperatures(e.g., 90% at +20°C).
• Environmental Protection:Must be installed in an areafree of severe vibration, shock, dust, or corrosive gases.
• Installation Inclination:No more than5°from vertical.

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Main Circuit Components

The XL-21 distribution cabinet supports various electrical components to ensure efficient power control and safety:

• Disconnecting Switches:QSA series, HR5 series.
• Disconnectors:QA and QP series.
• Fuses:RTO, NT00, etc.
• Circuit Breakers:DZ20, NM1, DZ47, NS, C45.
• Contactors:CJ20, B series, N series.
• Thermal Relays:JR20, JRS1, NR3 series.
• Transformers:LMZJ1-0.5, LMK1-0.66.

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Installation Guidelines

1. Pre-Installation Checks:
   • Ensure the packaging is intact and undamaged.
   • Inspect the product for defects and notify the supplier of any issues.
   • Store in a dry and well-ventilated environment before installation.
2. Installation Requirements:
   • Use abase channel steel structurefor mounting.
   • Secure the cabinet withbolts and connections.
   • Ensure the insulation resistance isnot less than 1MΩwhen using a 500V megohmmeter.
3. Commissioning Steps:
   • Verify that themain electrical components and auxiliary contactsare reliable.
   • Confirm that thewiring configuration matches the schematic diagrams.
   • Check that allprotective devicesare functioning correctly before putting the system into operation.

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Precautions for Use

• Circuit Breaker Maintenance:After multiple switching operations, thecontact surfacesof the circuit breaker may developcarbon deposits, increasing resistance. Regularcleaning and maintenanceare required.
• Overload Protection:Ensure that theoverload and short-circuit protectionmechanisms are correctly set up.
• Remote Control System:If connected to an automated power management system, periodiccalibration and software updatesare recommended.

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Ordering Information

To ensure you receive the correct XL-21 model for your application, please provide the following details when placing an order:

1. Model Number:Includingmain circuit scheme numberandauxiliary circuit scheme number.
2. Main Circuit Diagram:Specify thepower distribution plan and layout.
3. Component List:Indicate thetype of circuit breakers, contactors, and relaysrequired.
4. Color Selection:Default color islight camel gray, but custom options are available upon request.
5. Special Requirements:If anynon-standard configurationsare required, they must be specified during ordering.

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Application Scenarios

TheXL-21 New Type Power Distribution Cabinetis suitable for a wide range oflow-voltage power distribution systems, including:

• Industrial Facilities:Manufacturing plants, steel mills, and chemical processing industries.
• Commercial Buildings:Shopping malls, office towers, and large residential complexes.
• Infrastructure Projects:Airports, railway stations, and smart city grids.
• Renewable Energy Systems:Solar and wind power distribution networks.
• Data Centers & IT Hubs:Stable power supply forcritical computing infrastructure.

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TheXL-21 New Type Power Distribution Cabinetis a state-of-the-art solution forlow-voltage power management, designed toenhance efficiency, safety, and reliability. With itsmodular design, advanced circuit protection, and intelligent monitoring features, it is anideal choicefor variousindustrial, commercial, and infrastructure applications.

Fortechnical support, pricing, and customization options, pleasecontact us today.