Import Circuit Breakers — Buy in Bulk from Supplier in China
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Circuit breakers
These are high-voltage SF6 circuit breakers rated for 40.5 kV, designed for outdoor use in power transmission and distribution networks. The LW-252 model uses sulfur hexafluoride gas as the arc-quenching and insulating medium, housed in a porcelain post structure. This configuration is standard for substations and industrial switchyards requiring reliable interruption of high fault currents.
The porcelain body provides superior mechanical strength and dielectric performance under extreme weather, including heavy rain, ice, and dust. SF6 gas offers high dielectric strength and efficient arc extinction, reducing maintenance needs compared to oil or air-blast designs. The breaker is rated for 2500A continuous current and complies with IEC 62271-100 for high-voltage AC systems. It is not intended for indoor or low-voltage applications.
Primary buyers include utility companies, EPC contractors, and industrial plant operators managing medium to high voltage networks. The breaker is typically installed in outdoor switchgear assemblies. Trade terms include FOB Shanghai or CIF destination port. Lead time is approximately 8 to 12 weeks due to custom manufacturing and testing requirements. MOQ is generally one unit for this model, but bulk orders are common for grid projects.
| Rated voltage | 40.5 kV |
| Rated current | 2500A |
| Insulation medium | Sulfur hexafluoride (SF6) |
| Construction type | Porcelain post, outdoor |
| Model designation | LW-252 |
| Breaking capacity | 31.5 kA (typical for 40.5 kV SF6 breakers) |
| Standard compliance | IEC 62271-100 (standard for high-voltage AC circuit breakers) |
| Operating temperature | -40°C to +40°C (typical range for outdoor HV breakers) |
| Mechanical life | 5,000 operations (typical for HV SF6 breakers) |
| Gas pressure rating | 0.5 MPa (typical SF6 fill pressure for 40.5 kV class) |
Chint Electric Co., Ltd is headquartered in Shanghai's Songjiang District, a major center for power equipment manufacturing. The supplier is classified as imported with harbor trust tier, indicating documented export activity. The listing does not disclose factory size, workforce, or revenue. Chint is a known brand in the global power industry, though the listing does not claim certifications beyond ISO and CE.
The company manufactures a broad range of electrical equipment, including medium and high-voltage switchgear. This listing refers to a specific high-voltage SF6 breaker model, not a general product line. No details are provided on in-house testing facilities, R&D capacity, or OEM partnerships. Buyers should treat this as a product listing from a supplier of a known brand, not a direct manufacturer claim.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | Contact Supplier |
| Response Rate | New Supplier |
Sourcing Circuit breakers from Chint Electric Co., Ltd - China Import Guide
Verify the exact model number (LW-252), rated voltage, and breaking capacity against your system requirements. Request a copy of the type test certificate issued by an accredited lab. Do not rely on CE or ISO claims alone; confirm that the breaker has been tested per IEC 62271-100 for high-voltage interruption performance under real fault conditions.
Lead time is typically 8 to 12 weeks due to custom manufacturing and gas filling procedures. Common trade terms are FOB Shanghai or CIF. Payment is usually 40% advance, 60% against BL copy. Confirm Incoterms responsibility for export customs and import duties. SF6 gas transport requires special documentation under the Kyoto Protocol and may affect shipping options.
Upon delivery, inspect the porcelain housing for cracks, verify SF6 pressure with a calibrated gauge, and check for gas leaks using a sniffer. Ensure all terminal connections are labeled and torque specifications are provided. Request a commissioning checklist and test protocol from the supplier. Retain all documentation for regulatory compliance and future maintenance.
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30 suppliersBuy & Import Circuit Breakers — Wholesale Supply from China
Securing a reliable supply chain for Circuit Breakers is critical for maintaining your business operations. Chint Electric Co., Ltd, a verified supplier located in China, provides high-quality Circuit Breakers ready for international export. By connecting directly with this supplier, buyers can bypass intermediaries, negotiate custom wholesale pricing, and arrange bulk shipments. This product is a key offering within the Products industry, catering to distributors, wholesalers, and importers worldwide.
Request Wholesale Pricing & Bulk Trade Terms
Navigating the complexities of global sourcing is easier when you have direct access to the right manufacturers and exporters. When importing Circuit Breakers from China, buyers can discuss shipping logistics, packaging requirements, and preferred payment terms directly with Chint Electric Co., Ltd. This seamless communication is powered by EximNext, a premier online B2B marketplace that connects ambitious buyers with verified global sellers across every major industry.
About Chint Electric Co., Ltd — Verified Supplier in China
We understand that verifying supplier credentials is a top priority for importers. Chint Electric Co., Ltd is part of our extensive network of vetted international exporters. Browse more products in the Related category or discover new suppliers across the Products sector. Expand your sourcing capabilities through our trusted B2B marketplace — the import export marketplace built for serious international trade.
International Shipping & Import Guidelines for Circuit Breakers
When importing Circuit Breakers from China, buyers should consider shipping terms (FOB, CIF, EXW), customs documentation requirements, and payment security. Contact the supplier to discuss the best logistics options for your destination country.
Frequently Asked Questions About Circuit Breakers
How can I get the wholesale price for Circuit Breakers?
Click the "Request Quotation" button to contact Chint Electric Co., Ltd directly. The supplier will provide a custom quote based on your required bulk quantity and shipping destination.
Can I buy Circuit Breakers in bulk from China?
Yes, Chint Electric Co., Ltd provides Circuit Breakers for bulk export from China. You can negotiate the MOQ, packaging details, and shipping terms directly with the supplier.
What shipping terms are available for this product?
Shipping terms such as FOB, CIF, or EXW can be negotiated directly with Chint Electric Co., Ltd. Contact the supplier to discuss the best logistics options for importing Circuit Breakers to your country.
How do I request a sample of Circuit Breakers?
Send a direct message to Chint Electric Co., Ltd through our platform to request a product sample before committing to a large wholesale order.
Is it safe to source products from this supplier?
Chint Electric Co., Ltd is a registered and verified supplier on EximNext. We recommend using our secure messaging system and standard international payment methods (L/C, T/T, Escrow).
What specifications should I ask for when importing Circuit Breakers?
Request a detailed product data sheet including grade, purity, dimensions, material composition, and applicable industry standards from Chint Electric Co., Ltd.
Does Chint Electric Co., Ltd offer custom packaging or private labeling?
Many suppliers on EximNext, including Chint Electric Co., Ltd, offer custom packaging and private label options for bulk wholesale orders.
What payment methods are accepted for international orders?
Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), Documents against Payment (D/P), and Escrow services.
Can I find more Products suppliers on EximNext?
Yes, EximNext hosts a wide network of verified Related manufacturers, exporters, and wholesalers across 200+ countries.
How do I contact Chint Electric Co., Ltd for a bulk trade inquiry?
Click "Request Quotation" or "Contact Supplier" on this page. Include your required quantity, destination country, and preferred shipping terms. All communications are managed securely through our online B2B marketplace.
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