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XL-21 Low Voltage Dustproof Power Box

The XL-21 Low Voltage Dustproof Power Box is designed for low-voltage power distribution systems, particularly in wind and solar power generation scenarios. It serves as a centralized control and distribution unit for electrical loads, offering reliable protection, monitoring, and control for downstream circuits. Enclosed in a durable, dustproof casing, the XL-21 is suitable for indoor and semi-outdoor installations, contributing to the efficient operation of clean energy projects.

Product Advantages
Reliable Protection Capabilities
Equipped with circuit breakers and overload protection devices that help safeguard electrical systems from short circuits and overcurrents.Ensures controlled and stable operation of equipment under varied working conditions.

Environmental Adaptability
Dustproof design allows operation in environments with airborne particles, commonly found in outdoor solar and wind farms.Helps reduce maintenance frequency by minimizing the ingress of dust and other contaminants.

Space Efficiency
Compact cabinet structure allows for flexible installation in limited-space environments.The vertical panel layout makes efficient use of space while maintaining ease of operation.

Ease of Operation and Maintenance
Clearly labeled switches and intuitive layout simplify usage and reduce training time for operators.Modular design allows for straightforward inspection and replacement of components.

System Compatibility
Supports integration with a variety of power generation, storage, and distribution systems.Compatible with centralized and distributed control systems for real-time monitoring and coordination.

Product Features
Dustproof Enclosure Design
Made from high-quality steel plates with protective coatings to enhance corrosion resistance.Features sealed joints and filtered ventilation to limit dust entry and maintain internal cleanliness.

Standardized Electrical Configuration
Internal wiring and component layout follow industry standards for low-voltage distribution panels.Includes terminals for incoming and outgoing lines, protection devices, and monitoring meters.

Product Applications
Solar Power Stations
Used in photovoltaic plants to manage power distribution from inverter outputs to the main AC grid interface.Helps ensure controlled power flow and safety for personnel and equipment.

Wind Power Stations
Provides localized power distribution control near wind turbine towers or substations.Supports effective management of auxiliary equipment such as pitch control systems and lighting.

Energy Storage Systems
Facilitates integration of battery management and control devices within hybrid energy systems.Helps distribute and protect power flow between storage units and external loads.

Industrial and Utility Installations
Suitable for equipment rooms, control buildings, and transformer stations in renewable energy projects.Can be used to power operational systems such as monitoring, communication, and automation equipment.

X/①L/②(F)/③ - 21/④口/⑤

①	Box type
②	Power
③	Dustproof type
④	Design serial number
⑤	Main circuit scheme number

Serial	Name	Unit	Parameter
1	Rated voltage of main circuit	V	AC：380
2	Rated voltage of auxiliary circuit	V	AC：220，380
3	Rated frequency	HZ	50
4	Rated insulation voltage	V	660
5	Rated current	A	≤800A

A	B	C	D	H
800（600） optional	500（400） optional	650(450)	450(350)	1800（1600） optional

Outline and Installation Dimension Drawing of New XL-21 Power Distribution Cabinet

	For isolating switches: QA and QP series models can be selected;
	For fuses: models such as RTO and NT00 can be selected;
	For circuit breakers: models can be selected such as DZ20, NM1, DZ47, NS, C45, etc;
	Contactor: Model options include CJ20, B series, N series, etc;
	For thermal relays: models can be selected from JR20, JRS1, NR3 series, etc;
	Transformer: Models such as LMZJ1-0.5 and LMK1-0.66 can be selected;