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Zero Sequence Filter Third Harmonic Control
Negotiable
1 Piece
Product profile
Customization
AvailableType
Power QualityRated Voltage
208V-800VModel NO.
shapfTransport Package
PlywoodSpecification
0.4kvTrademark
SanheOrigin
ChinaHS Code
8537209000Production Capacity
10000PCS\YearKey features
High Efficiency Filtering: Filters over 90% of 3rd harmonic current on neutral and phase lines.
Wide Capacity Range: Available from 20A to 600A with parallel combination options.
Advanced Control Technology: Uses DSP/FPGA/CPLD chips for real-time zero-sequence harmonic extraction.
Enhanced Safety Protection: Includes bypass switch for quick short-circuiting to ensure continuous operation.
Comprehensive Monitoring: Equipped with residual neutral current monitoring system for full oversight.
Flexible Installation: Supports drawer, wall-mounted, vertical, and floor-standing configurations.
Low Heat Dissipation: Overall efficiency up to 98% with heat loss under 2%.
Rapid Response Time: Response time is less than 2 milliseconds for immediate compensation.
Company profile

CertifiedBusiness Type: Manufacturer/Factory & Trading CompanyExport Year: 2002-09-01Nearest Port: shanghaiAverage Response Time: ≤4.26hTerms of Payment: LC, T/T, Western Union, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, FCA, EXW
AI-Powered supplier vetting
SummarySanhe Power Tech (Shenzhen) Co., Ltd. is a China-based limited company and factory established in 2002, with 76 employees and operations in Shenzhen, Guangdong. It specializes in power-quality and new-energy products, including harmonic filters, capacitor banks, SVG/STATCOM, APF, power-factor correction, switchgear, soft starters, and solar-storage charging systems. The supplier reports ISO9001:2008, ISO14001:2004, and OHSAS18001:2007 certifications, seven R&D engineers, 31–40 quality-control staff, five production lines, and a 5,000 m² manufacturing plant. Stated production includes vacuum contactors, SVG/APF systems, capacitor-bank cabinets, battery storage, and RMUs. It began exporting in 2002 and identifies Africa, Southeast Asia/Mideast, and domestic markets. The provided information supports production, certification, and technical-specialization strengths, but does not establish after-sales performance, financial credibility, customization capability, or customer case history.
Supplier typeThe supplier is identified as a limited company and factory, with a combined business type, based in Shenzhen, Guangdong, China. Its stated industry is manufacturing, indicating a direct manufacturing-oriented supplier rather than only a trading intermediary.
CertificationsThe supplier reports ISO9001:2008, ISO14001:2004, and OHSAS18001:2007 management-system certificates. These explicitly cover quality, environmental, and occupational-health-and-safety management, although the provided information does not include certificate validity dates or verification details.
R&D capabilityThe supplier describes itself as a national high-tech enterprise focused on power-quality products, R&D, technology solutions, production, and service. It reports seven R&D engineers and a product range covering SVG/STATCOM, APF, harmonic treatment, voltage control, power-factor correction, and distributed new-energy solutions, providing explicit evidence of technical development capability.
Production capacityThe supplier reports five production lines, a 5,000 m² manufacturing plant, 31–40 quality-control staff, and stated annual outputs for vacuum contactors, SVG/APF, capacitor-bank cabinets, battery storage, and RMUs. These data support established multi-product manufacturing capacity, although no independent capacity validation or delivery-performance data is provided.
Product Q&A
Q:What is the filtering efficiency of the device?
A:
The device can filter out more than 90% of the 3rd harmonic current on both the neutral line and phase line.
Q:What is the rated voltage range?
A:
The rated voltage ranges from 208V to 800V, with a specific operating range of 400V (-40% to +20%).
Q:Can multiple units be connected in parallel?
A:
Yes, multiple products of the same specification can be combined in parallel to form a larger capacity without limits.
Q:What installation types are available?
A:
The device supports drawer type, wall-mounted, vertical, and floor-standing installation methods.
Q:How does the device protect against overcurrent?
A:
It features a bypass switch that allows quick short-circuiting of the filter to ensure load equipment continues to operate reliably.
Send Inquiry
*To:
Sanhe Power Tech (Shenzhen) Co., Ltd.
Sanhe Power Tech (Shenzhen) Co., Ltd.*Content:
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