Rigorously tested low-voltage distribution devices engineered to fulfill Directive (EU) 2015/863 environmental parameters.
Navigating environmental material safety standards in electrical apparatus, switchgear enclosures, and industrial protection modules.
The global transition toward eco-friendly power infrastructure requires electrical equipment suppliers to comply with stringent environmental mandates. EU Directive 2015/863, commonly known as RoHS 3, added four specific plasticizers (phthalates) to the existing list of six restricted hazardous substances. For original equipment manufacturers (OEMs), panel builders, and project procurement managers, sourcing RoHS 3 compliant circuit breakers, molded case switches (MCCBs), miniature circuit breakers (MCBs), and residual current devices (RCCBs/RCBOs) is no longer optional—it is a critical legal and regulatory prerequisite for market entry in the EU, UK, North America, and aligned global territories.
RoHS 3 compliance mandates that electrical component materials contain strict threshold concentrations measured in parts per million (ppm) or percentages by weight in homogeneous materials:
| Restricted Substance Category | RoHS 3 Chemical Substance | Maximum Permissible Limit | Electrical Component Application Risk Zone |
|---|---|---|---|
| Heavy Metals | Lead (Pb), Mercury (Hg), Cadmium (Cd), Hexavalent Chromium (Cr VI) | Cd: < 0.01% (100 ppm) Pb, Hg, Cr VI: < 0.1% (1000 ppm) |
Solder joints, contact metallurgy, anti-corrosion platings, structural brass components. |
| Flame Retardants | Polybrominated Biphenyls (PBB), Polybrominated Diphenyl Ethers (PBDE) | < 0.1% (1000 ppm) | Thermosetting BMC/SMC casing, PA66 arc chute housing, terminal insulator covers. |
| Phthalates (RoHS 3 Added) | DEHP, BBP, DBP, DIBP (Plasticizers) | < 0.1% (1000 ppm) each | Flexible wire insulation, terminal shrouds, rubber seals, PVC cable grommets, internal gaskets. |
Unlike standard consumer electronics, industrial low-voltage switchgear experiences continuous thermal stress, high-current arc extinction, and mechanical fatigue. RoHS 3 compliance in circuit breakers requires replacing toxic phthalate plasticizers with high-temperature polymeric elastomeric substitutes without sacrificing dielectric strength, flame retardancy (UL94 V-0 standard), or mechanical longevity (up to 20,000 operations).
A trusted professional manufacturer from China's Capital of Electrical Appliances, driving continuous progress in power distribution and control technology.
Founded in 2013, Wenzhou OFA Electrical Technology Co., Ltd. is rooted in Yueqing, Wenzhou—the heart of China's electrical industry and its largest low-voltage equipment cluster. Operating under proprietary brands such as "OFA", our production ecosystem spans distribution switchgear, control gear, molded case circuit breakers, miniature breakers, intelligent air circuit breakers, and green solar energy components.
We adhere to honest, law-abiding operations and have earned the prestigious distinction of being rated as Tax Credit Grade A for seven consecutive years. Our plant is ISO9001 certified, and our products hold comprehensive CE, UL, CCC, and IEC international test certifications.
Our engineering SOP incorporates a non-negotiable 100% full-inspection process, verifying mechanical life, temperature rise limits, dielectric insulation performance, and automated XRF toxic substance screening prior to factory release.
Unrivaled manufacturing velocity, material integration, and economic advantages from the global epicenter of low-voltage electrical engineering.
Located in Yueqing, Wenzhou, OFA leverages a localized supply chain within a 50-kilometer radius. Raw materials, precision copper stampings, silver alloy contacts, and halogen-free engineering polymers are procured with zero transport lag, drastically shortening delivery lead times.
By introducing digital assembly lines, automated trip unit calibration stations, and laser-assisted marking systems, OFA stabilizes output quality, minimizes human error, and delivers superior cost-performance ratios without compromising safety standards.
Every incoming batch of raw plastics, solder, and contact plating undergoes X-ray Fluorescence (XRF) screening and Gas Chromatography-Mass Spectrometry (GC-MS) verification, ensuring strict adherence to EU 2015/863 limits before manufacturing begins.
Engineered for extreme operating environments—from utility-scale renewable installations to mission-critical infrastructure.
High-voltage DC Molded Case Circuit Breakers (OFID 2P series up to 1500V DC) provide reliable overcurrent and short-circuit protection for commercial solar combiners and utility-scale BESS architectures.
Residual Current Circuit Breakers with Overcurrent protection (RCBO & RCCB Type A / Type B) ensure human life safety against smooth DC residual leakage currents in fast-charging EV installations.
Intelligent Air Circuit Breakers (OFW1 Series) deliver seamless selectively coordinated trip curves, dual-bus switching capability, and IoT communication capabilities for uptime-sensitive data centers.
Compact Miniature Circuit Breakers (OFAFT & OFNC 1P/2P/3P/4P) safeguard automated motor controllers, PLC panels, and robotics manufacturing lines under severe vibrations.
High-breaking capacity MCCBs (OFA-M1 & OFM1 630A series) manage primary distribution switchboards for commercial towers, hospital wings, and shopping complexes.
Isolator Switches (OFIS-125A & OFIS-BH) integrate isolating convenience with MCB protection, enabling decentralized isolation for distributed rooftop power networks.
Comprehensive low-voltage components for distribution, protection, control, and system isolation.
From technical parameter alignment to rapid mass delivery—transparent engineering collaboration designed for global distributors and EPC contractors.
Submit your target voltage, rated current (In), breaking capacity (Icu/Ics), trip curves (B, C, D), and housing dimension requirements. Our engineering desk provides instant feasibility analysis.
We provide initial sample units accompanied by comprehensive RoHS 3 XRF/GC-MS laboratory test certificates, CE declarations of conformity, and mechanical life test reports.
Upon sample sign-off, production commences on our automated lines. In-line sensor checkpoints audit thermal tripping mechanisms and contact resistance with zero deviation.
Products undergo moisture-proof, export-grade packaging with custom branding labels. Export clearance document bundles (CoC, Form E, Packing List) are issued automatically.
Exhibiting innovation and connecting with power infrastructure leaders across global trade fairs.
Feedback from system integrators, plant engineers, and facilities directors relying on OFA solutions.
Comprehensive engineering clarity on RoHS 3 standards, circuit protection selection, and procurement logistics.
High-performance DC breakers, high-breaking capacity MCBs, RCBOs, and isolator switches.
OFA Electrical
