High-Performance Extension Sockets & Power Stations
Manufactured in our Jiangmen 30,000+ m² production facility. Tested for continuous high-load duty cycles, heavy-amperage switching, and transient spike suppression.
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Configure OEM ModelThe Next Frontier in Extension Double Socket Engineering
The global electrical secondary distribution market has transitioned beyond fundamental cord extensions. Contemporary international standards demand high-frequency transient attenuation, thermal decoupling of silicon semiconductors, and advanced fire-retardant structural polymers.
GaN III Direct Bus Integration
Traditional transformer-driven low-voltage modules dissipate significant heat within small enclosures. Next-generation double sockets incorporate Gallium Nitride (GaN III) ICs directly adjacent to AC terminal strips, providing up to 65W/100W USB-C Power Delivery at 94.2% electrical efficiency with zero thermal degradation to copper contact springs.
Micro-Gap Double-Pole Disconnection
To satisfy stringent GCC, SASO, and BS 1363-2 industrial safety clauses, professional dual gang assemblies deploy true double-pole (DP) switching mechanisms. Both Live and Neutral copper traces are isolated simultaneously with minimum 3.0mm contact air clearances, extinguishing secondary inductive back-EMF arcing under heavy reactive loads.
Multiphase MOV Transient Protection
Heikki incorporates thermally fused 14D/20D Metal Oxide Varistors paired with ceramic Gas Discharge Tubes (GDT). Clamping occurs in sub-nanosecond intervals (<1ns) across Line-Neutral, Line-Earth, and Neutral-Earth conductors, absorbing transient energy surges up to 1,800 Joules without releasing flaming particulates.
China Factory 4.0: Pearl River Delta Supply Chain Dominance
Procurement failure is often rooted in fractured multi-tiered subcontracting. Operating in Jiangmen, Guangdong since 1995, Jiangmen Heikki Technology Co., Ltd. consolidates raw copper extrusion, automated precision stamping, high-tonnage polymer injection, and computer-vision QC under one cohesive management system.
Single-Piece Stamped Phosphor Bronze Conductors
Unlike cheap manufacturers who rely on riveted brass strips prone to galvanic oxidation and hot spots, Heikki engineers utilize high-purity Phosphor Bronze (QSn6.5-0.1 / CuSn6). The internal busbar is progressively stamped as a unified structural bridge, guaranteeing less than 5mΩ contact resistance and exceptional spring fatigue life over 10,000 cycles.
V-0 Flame-Retardant Engineered Polycarbonate
Housing assemblies are injection-molded utilizing primary virgin Polycarbonate (PC) and ABS/PC polymer alloys rated to UL94 V-0 flammability criteria. The structural shell passes standard glow-wire flammability testing (IEC 60695-2-11) at 750°C for non-conductive enclosures and 850°C for parts supporting current-carrying joints.
Automated Vision & Electrical Dielectric Testing
100% of finished extension double sockets undergo continuous in-line screening. Our fully automated testing cells verify high-voltage dielectric breakdown (3,750V AC isolation barrier), earth conductor bonding impedance (<0.05Ω at 25A current injection), and automated shutter mechanical interlocking force before export palletization.
Engineering Comparison: Heikki Precision OEM vs. Generic Power Strips
Critical data points that differentiate industrial-grade OEM double extension sockets from commodity power strips sold through unverified trade intermediaries.
| Performance Parameter | Heikki Precision OEM / ODM Standards | Generic Commodity Manufacturer | Compliance Reference |
|---|---|---|---|
| Internal Busbar Conductor | Unified Stamped Phosphor Bronze (QSn6.5-0.1, 0.6mm thickness) | Fragmented Riveted Brass / Recycled Iron-Copper alloy | IEC 60884-1 / BS 1363-2 |
| Switching Mechanism | Silver Alloy (AgCdO / AgSnO2) Contacts, 16A rated Double-Pole | Single-Pole Pure Copper or Plated Steel, arcing-prone | BS EN 61058-1 |
| Polymer Flammability | Virgin PC Resin, UL94 V-0 Rated, 750°C/850°C Glow-Wire Certified | Recycled ABS, No Self-Extinguishing Agent (UL94 HB) | IEC 60695-2-11 |
| Child Safety Shutters | Two-Stage Earth-Pin Driven Dynamic Cam Interlock (Safety Mark) | Fragile Single-Sided Plastic Blocker or Omitted entirely | SS 145 / SASO 2815 |
| Flexible Cord Integrity | 100% Electrolytic Pure Annealed Copper, Class 5 Flexible H05VV-F | Copper-Clad Aluminum (CCA) or undersized cross-section | EN 50525-2-11 / UL 62 |
| Surge Suppression Network | Thermally Fused Multiphase 14D/20D MOV + GDT (Up to 1,800 Joules) | Unprotected or Raw 07D MOV without thermal disconnect | IEC 61643-11 |
Engineered Applications Across Global Infrastructures
Our extension double sockets are purpose-built to survive heavy industrial cycling, high-density IT data environments, and luxury residential hospitality developments.
Enterprise & Workstation Clusters
Modern commercial offices demand clean desk power delivery with integrated rapid charging. Our double sockets feature low-profile right-angle plugs, cable management troughs, and direct USB-C PD controllers that cleanly charge corporate ultrabooks and peripherals while eliminating heavy external wall warts.
UL 1363 & BS 1363 CertifiedIndustrial Automation & Workshop Hubs
Harsh light-industrial environments require heavy mechanical abuse resistance. Heikki supplies ruggedized rubberized overmolded housings, oil-resistant cables, and integrated hydraulic magnetic circuit breakers that trip instantly upon sustained inductive motor overloads without thermal nuisance tripping.
16A/250V Continuous RatingHospitality & Multi-Standard Architecture
International transit hubs and luxury hotel installations benefit from our multi-plug universal extension series. Supporting UK 3-pin, EU Schuko, US NEMA, and Australian configurations with master child-safe shutters, Heikki double sockets provide fail-safe power compatibility for global travelers.
SASO / G-Mark / TISI VerifiedFrequently Asked Questions by Global Procurement Executives
Technical, regulatory, and supply chain insights curated from real-world B2B buyer inquiries across Europe, North America, Southeast Asia, and the Middle East.
A certified extension double socket is designed to replicate the structural integrity, contact pressure, and thermal dissipation metrics of fixed architectural twin wall outlets. Unlike multi-gang hobbyist power strips, Heikki double sockets utilize heavy-gauge continuous busbars, independent double-pole switching mechanisms, and reinforced wall-mounting anchor channels rated for permanent or semi-permanent commercial installation.
Our UK and Gulf-standard extensions incorporate certified BS 1362 ceramic cartridge fuses within the plug top, mechanical child shutters that require simultaneous insertion of the earth pin to unblock phase apertures, and fully certified flame-retardant housing materials. Our models hold formal test certificates from accredited test bodies such as Intertek and TÜV Rheinland for SASO, G-Mark, and UKCA compliance.
We exclusively utilize precision cold-rolled Phosphor Bronze (QSn6.5-0.1) containing 6.0% to 7.0% Tin and 0.1% to 0.25% Phosphorus. This alloy delivers exceptional tensile strength (>590 MPa) and superior elasticity retention compared to commercial brass (H62/H65), preventing spring relaxation, loose grip, and subsequent arcing even after more than 10,000 cycles.
Yes. With an in-house tooling workshop equipped with high-precision CNC machining centers, wire-cutting EDM, and 40+ injection molding machines, Heikki provides turnkey ODM development. We can deliver customized industrial ID designs, bespoke cord strain-relief profiles, branded silk-screen or laser engraving, and custom master carton packaging with typical tool fabrication cycles completed within 35 to 45 days.
We offer multi-stage Class III surge protection configurations ranging from 300 Joules for light domestic duty up to 1,800 Joules for telecom and server environments. Our high-tier circuits utilize a hybrid MOV-GDT-Thermal Cutoff array that suppresses rapid voltage transients while automatically disconnecting the varistor element if internal thermal runaway occurs.
All cables are constructed strictly adhering to cross-sectional area regulations (e.g., 3x1.25mm² or 3x1.5mm² for 13A-16A applications up to 10 meters; 3x2.5mm² for heavy industrial setups). We perform standard temperature rise testing under 1.1x rated current, ensuring terminal block temperature increases remain well below the 45K limit defined by international safety standards.
Standard OEM production runs require an MOQ of 1,000 to 2,000 units per specification depending on custom colorway and packaging specifications. Repeat mass production orders are typically fulfilled within 25 to 30 days from Jiangmen Port or Shenzhen/Guangzhou consolidation hubs.
Our company operates fully under ISO 9001:2015 (Quality Management), ISO 14001:2015 (Environmental Management), and ISO 45001:2018 (Occupational Health & Safety). We are officially designated as a High and New-Technology Enterprise (HNTE) and a "Specialized, Refined, Unique and Innovative" enterprise by the Guangdong provincial government.
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