Low-Voltage Power Distribution Cabinet
The low-voltage distribution cabinet is core electrical equipment specially designed for power distribution and automatic control of heating systems. Adopting a standardized modular structure, it integrates circuit breakers, contactors, thermal relays, intelligent power meters and PLC control units into one integrated protective enclosure. It provides centralized power distribution, multi-layer safety protection, real-time monitoring and automatic control for heating system loads including water pumps, fans and electric heating equipment. With scientific circuit design and coordinated protection logic, it ensures safe, stable and continuous operation of all heating equipment.
Compared with decentralized power distribution solutions, this cabinet features higher space utilization, safer operation and intelligent management. It supports manual/automatic mode switching, real-time parameter monitoring and remote communication control. Fully adapted to boiler rooms, heating substations and pump stations, it delivers a safe, efficient and expandable one-stop power distribution solution for all heating systems.
Key Features
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High-Safety & Reliable Structure: The cabinet frame is made of high-quality cold-rolled steel or aluminum-zinc coated sheet with independent assembled framework, featuring high structural strength and reliable continuous grounding. All internal electrical components comply with IEC and GB standards, equipped with comprehensive protection against short circuit, overload and electric leakage to guarantee long-term safe system operation.
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Intelligent Monitoring & Data Management: Optional smart power meters and communication modules enable real-time monitoring of voltage, current, power and energy consumption. It supports fault alarm triggering, historical data recording and remote data transmission, facilitating energy efficiency analysis and early risk warning for heating system operation.
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Flexible Configuration & Expandability: Modular design allows customized circuit quantity, current capacity and functional combinations including variable frequency control, soft start and dual power transfer switches. Sufficient reserved internal space supports later equipment expansion and system renovation without major modification.
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Easy Installation & Low Maintenance Cost: Adopts front and rear double-door design with neatly arranged components, standardized wiring and clear identification labels. Independent pluggable functional units enable fast inspection and component replacement, greatly reducing equipment maintenance downtime and labor costs.
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Energy-Saving & Space-Saving Layout: Optimized internal wiring effectively reduces line power loss. The compact integrated structure saves installation space, perfectly adapting to space-limited heating equipment rooms and indoor power distribution scenarios.
Technical Specifications
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Rated Voltage: AC 400V / 230V
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Rated Current: ≤6300A (segmented customized design available)
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Rated Short-Time Withstand Current (Icw): 15kA ~ 100kA (optional)
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Protection Grade: IP30 ~ IP54; standard indoor IP30, dustproof and waterproof IP54 optional
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Busbar Specification: Copper or aluminum busbars, matched with rated current
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Installation Type: Fixed type or draw-out drawer type (optional)
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Operating Ambient Temperature: -5℃ ~ +40℃ (custom design for special harsh environments)
Application Industries
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Central Heating Source Plants: Provides stable power distribution and automatic control for boiler auxiliary equipment, circulation pumps and makeup water pumps to ensure steady operation of heat source systems.
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Regional Heating & Heat Exchange Stations: Supplies power and intelligent control for heat exchange units, water pumps and valve actuators, realizing balanced heat regulation and stable operation of municipal heating networks.
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Building Heating Power Distribution Rooms: Suitable for heating system power distribution of commercial complexes, hospitals, schools and other public buildings, supporting independent multi-zone heating control.
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Clean Energy Heating Projects: Perfectly matches air source heat pumps, ground source heat pumps and other electric heating units for complete power distribution and system integration.
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Industrial Heating & Tracing Systems: Delivers safe and reliable power distribution and automatic control for process heat tracing equipment in factories and warehouses.