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The CKJ11-3000 is a low-voltage vacuum contactor designed for high-current switching in renewable energy and heavy industrial applications. It features a rated current capacity of 3000A, making it the highest-capacity vacuum contactor in its class according to the supplier's testing data. The unit operates at AC-1 and AC-3 load categories, with a rated insulation voltage of 1140V and a rated working voltage of 690V. It has been subjected to electric performance, ambient, and shock-vibration tests as per IEC 60947-4-1 standards.
The contactor uses a vacuum interrupter chamber with silver-tungsten alloy contacts, typical for industrial vacuum contactors requiring high arc resistance and long service life. Its coil voltage options include 24V DC, 110V AC, and 220V AC, compatible with standard control circuits. The housing is constructed from flame-retardant polycarbonate, meeting UL94 V-0 requirements. No certifications are claimed beyond internal test validation, and no third-party certification marks are referenced in the source material.
This contactor is primarily used in solar inverters, wind turbine pitch systems, large smelting furnaces, and railway traction equipment where frequent switching under high inrush current is required. Buyers typically source it for integration into custom control panels or as a replacement in legacy systems. Packaging is standard industrial carton with foam inserts. Trade terms are FOB Shanghai, with lead time and MOQ to be confirmed directly with the supplier. No minimum order quantity is stated in the listing.
| Rated Current | 3000A |
| Rated Insulation Voltage | 1140V AC |
| Rated Working Voltage | 690V AC |
| Load Category | AC-1, AC-3 |
| Contact Material | Silver-tungsten alloy |
| Housing Material | Flame-retardant polycarbonate (UL94 V-0) |
| Coil Voltage Options | 24V DC, 110V AC, 220V AC |
| Typical Operating Temperature Range | -25°C to +55°C (standard for industrial vacuum contactors) |
| Typical Mechanical Life | 1 million operations (standard for medium-duty vacuum contactors) |
| Typical Electrical Life | 100,000 operations at rated current (typical for AC-3 duty) |
Kunshan Guoli Electronic Technology Co. Ltd. is based in Kunshan, Jiangsu Province, China, with a registered address at St 28 Xihu Road. The company is registered as a manufacturer of electronic control components, and the listing shows it developed the CKJ11-3000 vacuum contactor independently. There is no public information on years in operation, employee count, or revenue. The supplier has no verified response rate or response time recorded, and no certifications are claimed beyond internal prototype testing.
The company's profile does not list any export history, client names, or third-party quality audits. It is classified as a harbor-tier supplier, indicating basic platform verification only. The product description suggests engineering capability in vacuum interrupter design, but no evidence of ISO, CE, or CB certification is provided. Buyers should treat this as a direct-from-factory source with no third-party quality assurance claims documented in the listing.
| Business Type | Supplier |
| Year Established | Recently Joined |
| Employees | Contact Supplier |
| Annual Revenue | Contact Supplier |
| Main Products | View Products Tab |
| Major Markets | Global |
| Response Time | <4h |
| Response Rate | New Supplier |
Before ordering, verify the contactor's coil voltage compatibility with your control system, confirm the contact material composition, and request documentation of internal test results for shock, vibration, and ambient conditions. Since no third-party certifications are claimed, ensure your quality assurance team reviews the supplier's test data or performs incoming inspection for insulation resistance and contact resistance under load. Do not assume CE or IEC compliance without explicit evidence.
Lead time and MOQ are not stated in the listing and must be confirmed directly. The supplier is based in Kunshan, near Shanghai Port, so FOB Shanghai is the likely incoterm. Packaging is standard industrial carton with foam, but buyers should specify if export-grade moisture protection or wooden crate reinforcement is required. Payment terms are not disclosed; common options include 30% advance with 70% against B/L copy, but this must be negotiated.
For quality verification, request a sample for contact resistance measurement using a micro-ohmmeter and perform a dielectric withstand test at 1500V AC for one minute. Inspect the vacuum interrupter for visible cracks or discoloration. Confirm the presence of any auxiliary contacts and their ratings. Ask for a batch traceability code and a test report for each shipment. Document all findings before release for shipment.
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When sourcing Ckj11 Series Ckj11-3000 for your business, securing the right balance of quality and cost is essential. Kunshan Guoli Electronic Technology Co. Ltd., a verified supplier based in China, offers this product for international export. By purchasing directly from the manufacturer or authorized exporter, buyers can negotiate favorable FOB prices starting at $100/Bags and manage bulk orders with a minimum order quantity (MOQ) of 1 Bags. This product is a staple in the Electric Components sector with strong demand from importing countries worldwide.
Importing Ckj11 Series Ckj11-3000 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Kunshan Guoli Electronic Technology Co. Ltd. offers flexible shipping options such as Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Common payment methods for international B2B transactions include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P). All transactions and RFQs are facilitated through EximNext, a leading import export marketplace designed to make cross-border trade secure and efficient.
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Importing Ckj11 Series Ckj11-3000 requires careful attention to shipping logistics, customs compliance, and secure payment terms. Common shipping options include Full Container Load (FCL) or Less than Container Load (LCL) via sea freight. Buyers should verify import duties in their destination country. Common payment methods include Letter of Credit (L/C), Telegraphic Transfer (T/T), and Documents against Payment (D/P).
The current listed wholesale price for Ckj11 Series Ckj11-3000 from Kunshan Guoli Electronic Technology Co. Ltd. is $100/Bags on FOB terms from China. Prices may vary depending on order volume, packaging, and destination. For the most accurate bulk quote, send a direct RFQ to Kunshan Guoli Electronic Technology Co. Ltd. through EximNext.
The supplier, Kunshan Guoli Electronic Technology Co. Ltd., has set a Minimum Order Quantity (MOQ) of 1 Bags for Ckj11 Series Ckj11-3000. For sample requests or smaller trial orders, contact the supplier directly through our platform's inquiry system.
The HS Code classification for Ckj11 Series Ckj11-3000 depends on the specific grade and form. Contact Kunshan Guoli Electronic Technology Co. Ltd. through EximNext for the exact HS Code and customs documentation required for your destination country.
To import Ckj11 Series Ckj11-3000 from China, negotiate shipping terms (FOB, CIF, or EXW) directly with Kunshan Guoli Electronic Technology Co. Ltd.. Ensure you have the necessary import licenses for Electric Components products in your destination country.
Yes, Kunshan Guoli Electronic Technology Co. Ltd. is a verified supplier on EximNext. You can view their complete company profile, business registration details, certifications, and export history before placing a bulk order.
For a complete technical data sheet or Certificate of Analysis (COA), send an inquiry directly to Kunshan Guoli Electronic Technology Co. Ltd. through EximNext.
Kunshan Guoli Electronic Technology Co. Ltd. offers Ckj11 Series Ckj11-3000 with standard export packaging. Custom packaging, private labeling, and OEM/ODM options may also be available for large wholesale orders.
Ckj11 Series Ckj11-3000 is actively imported by buyers worldwide. Request a destination-specific CIF or CFR quote from Kunshan Guoli Electronic Technology Co. Ltd. through our platform.
Kunshan Guoli Electronic Technology Co. Ltd. maintains international quality certifications. These ensure that the Ckj11 Series Ckj11-3000 meets international quality, safety, and regulatory standards required for cross-border trade.
Click "Request Quotation" on this product page, specify your required quantity, preferred shipping terms, and destination country. Kunshan Guoli Electronic Technology Co. Ltd. will respond with a detailed wholesale quote including FOB pricing, lead time, and payment options.
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