A low-voltage switchgear (LV switchgear) is a complete set of power distribution equipment used in low-voltage power systems (0.4kV-1kV) to receive, distribute electrical energy, and provide control, protection, monitoring and measurement for terminal power circuits. It is a core component of terminal power supply systems, playing a key role in ensuring the safe and stable operation of various electrical equipment.
As an integrated terminal power control device, low-voltage switchgear undertakes three core functions in the power system:
1.Power distribution: Receive medium-voltage electricity converted by transformers, convert and distribute it to various terminal loads (such as household appliances, industrial equipment, commercial lighting systems);
2.Safety protection: Cut off faulty current quickly when short circuit, overload, leakage, overvoltage or undervoltage faults occur, to protect terminal equipment and personal safety;
3.Control and monitoring: Realize on/off control of terminal power circuits, and monitor key parameters such as current, voltage and power consumption in real time to ensure the stable and energy-saving operation of the power system.
According to the structure and use scenarios, low-voltage switchgear can be divided into withdrawable, fixed, modular, incoming and outgoing line types, which are widely used in various fields such as residential, industrial and commercial, and are indispensable key equipment for modern terminal power supply systems.
| Configuration Feature | Fixed Type (General Protection) | Withdrawable Type (General Protection) | Modular Type (General Protection) | Withdrawable Type (Leakage Protection) |
| Structure Principle | Fixed installation of components, no movable parts | Withdrawable module structure, interchangeable modules | Independent modular combination, flexible expansion | Withdrawable module structure, added leakage protection device |
| Rated Current Range | 100A-1600A | 1250A-4000A | 2500A-6300A | 1250A-3200A |
| Protection Level | IP40 | IP40 | IP54 | IP40 |
| Maintenance Cost | Very Low | Low | Medium | Medium |
| Initial Cost | Low | Medium | High | Medium-High |
| Applicable Environment | Dry indoor | Indoor/outdoor | Indoor/outdoor, complex environments | Humid/outdoor, high safety requirements |
Buying Suggestion:
1.Determine the voltage level and rated current based on the project’s terminal power demand (0.4kV for general terminal projects, 0.69kV/1kV for high-power terminal projects);
2.Select the structure type according to the maintenance frequency and expansion needs (fixed type for low maintenance frequency, withdrawable type for high maintenance frequency, modular type for large capacity and expansion needs);
3.Choose the protection type according to the environmental conditions and safety requirements (general protection for ordinary environments, leakage protection for humid environments and high safety requirements);
4.Consider local standards and certification requirements (e.g., IEC for European markets, IEEE for North American markets);
5.Consult our engineers for free project-specific recommendations, including customized solutions for special scenarios such as humid areas and high altitude.
MOQ is 1 set for standard models; no MOQ limit for custom models, but large orders enjoy more favorable prices.
Yes, we can provide 1 sample for testing. The sample fee is refundable when you place a bulk order.
We accept T/T, L/C, Western Union and PayPal. For orders over $50,000, 30% deposit and 70% balance before shipment are acceptable.
The warranty period is 12-24 months from the date of delivery, covering quality defects of components and cabinet body.
