Direct Factory Supply for Costa Rican Industrial, Commercial, and Residential Low-Voltage Applications
Architecting Resilient Power Distribution Systems for a Decarbonized and High-Tech Economy
Costa Rica stands out as Central America’s premier technological and sustainable industrial hub. Driven by the National Decarbonization Plan 2018–2050 and supported by grid authorities such as the Instituto Costarricense de Electricidad (ICE), the country generates over 99% of its electricity from renewable resources—primarily hydroelectric, geothermal, wind, and rapidly scaling solar installations. However, this heavy reliance on distributed renewable generation introduces severe power quality challenges, including transient voltage surges, harmonic distortions, and frequency fluctuations.
Furthermore, Costa Rica's booming Free Trade Zones (FTZ / Zona Franca)—notably in Alajuela, Heredia, and Cartago—house world-class medical device manufacturers, electronics sub-assembly plants, and corporate data centers. For these mission-critical facilities, even a micro-interruption or an uncoordinated tripping event can lead to substantial financial loss. Wenzhou OFA Electrical Technology Co., Ltd. supplies the OFIS-DS Series Miniature Circuit Breaker (MCB) to address these precise challenges, bringing advanced thermal-magnetic tripping stability and robust arc-quenching mechanics to Costa Rica’s unique 120V/240V/480V distribution architecture.
Designed for ambient operating environments up to 55°C and high relative humidity (up to 95%) typical of Guanacaste and coastal Limón regions, featuring anti-corrosive silver-alloy contact tips and reinforced polycarbonate housings.
Offers certified ultimate short-circuit breaking capacity up to 10kA (IEC/EN 60898-1 & IEC 60947-2), preventing electrical fires and terminal degradation during intense fault conditions in heavy manufacturing circuits.
Combines precision bimetallic elements for inverse time-delay overload protection with an optimized electromagnetic coil for instantaneous short-circuit trip actuation.
Rigorous Manufacturing Standards meeting IEC/EN International Norms and Central American Electrical Codes
The OFIS-DS Series represents over a decade of continuous research and development at OFA Electrical’s Yueqing manufacturing center. Built around a modular 18mm per pole width footprint, each pole incorporates 12 arc-extinguisher runner plates engineered to split and cool high-energy electric arcs within 3 to 5 milliseconds during short circuits. This rapid arc extinction drastically reduces the let-through energy ($I^2t$), safeguarding delicate downstream electronic equipment, industrial PLCs, and medical assembly lines.
| Electrical Parameter | OFIS-DS Specification Standard | Costa Rica Application Compatibility |
|---|---|---|
| Number of Poles (P) | 1P, 2P, 3P, 4P | Single-phase 120V, Split-phase 120/240V, Three-phase 208V/480V |
| Rated Current ($I_n$) | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A | Full coverage from light LED control to 63A distribution panels |
| Tripping Characteristics | B Curve (3-5 $I_n$), C Curve (5-10 $I_n$), D Curve (10-14 $I_n$) | Residential/IT (B), General Commercial (C), Heavy Motor/Inductive (D) |
| Rated Voltage ($U_e$) | 230V / 400V AC (50/60 Hz) | Fully adaptable to 60Hz Central American utility grids |
| Breaking Capacity ($I_{cn}$) | 6,000A (6kA) / 10,000A (10kA) | Meets high fault current levels near step-down transformers |
| Insulation Voltage ($U_i$) | 500V AC | Enhanced dielectric strength for severe transient surge protection |
| Impulse Withstand Voltage ($U_{imp}$) | 4 kV | High tolerance against atmospheric lightning strikes and switching surges |
| Mechanical / Electrical Endurance | 20,000 operations / 10,000 operations | Long-life operation reducing operational downtime and maintenance cost |
| Protection Degree & Housing | IP20 (IP40 in enclosure), Flame Retardant UL94-V0 | Self-extinguishing material prevents electrical panel fire propagation |
In humid tropical environments such as San José, Heredia, and Puntarenas, ambient temperature derating is critical. Standard breakers derate rapidly above 30°C. The OFIS-DS series utilizes specially calibrated bimetallic strips and silver-graphite contacts, maintaining full rated capacity up to 40°C with minimal thermal compensation needed, ensuring zero nuisance tripping during peak thermal hours.
Empowering Global Distributors & Costa Rican Import Partners with Superior Value and Scale
Wenzhou OFA Electrical Technology Co., Ltd., located in Yueqing, Wenzhou—the world's largest low-voltage electrical apparatus cluster—combines complete industrial chain integrations with direct factory pricing. By procuring OFIS-DS Series circuit breakers directly from OFA Electrical, Costa Rican electrical wholesalers, hardware chains, and system integrators bypass multiple layers of European or North American brand markups while retaining strict adherence to international safety standards like CE, CB, and IEC.
Our facility features automated assembly lines, high-precision thermal calibration benches, and 100% full-process end-of-line electrical testing. Furthermore, OFA has been awarded Tax Credit Grade A for seven consecutive years, demonstrating transparent governance, robust financial standing, and dependable contract execution for high-volume overseas shipments.
Custom laser-printed branding, customized thermal-magnetic tripping curves, specialized voltage ratings, and regional packaging tailored for Central American retail and wholesale distribution.
Optimized export logistics directly from Ningbo or Shanghai ports to Puerto Caldera (Pacific) or Puerto Limón (Caribbean), supporting ocean FCL/LCL and rapid air freight for emergency project replenishment.
Every single unit undergoes rigorous 100% tripping test verification, insulation resistance testing, and contact resistance measurement before final export packaging.
A Trusted Professional Supplier in the Field of Power Distribution and Control
Founded in 2013, Wenzhou OFA Electrical Technology Co., Ltd. is rooted in Yueqing, Wenzhou — the Capital of Electrical Appliances in China. Owning independent brands such as "OFA", our product portfolio spans power, energy, industrial automation, construction, and equipment manufacturing. Rooted in Yueqing for over a decade, we provide partners with distribution switchgear, control equipment, and supporting electrical components that feature stable performance and significant cost advantages.
We adhere strictly to honest, transparent operations, backed by our ISO9001 quality management system certification. Our customer base covers power grid infrastructure, commercial construction, industrial manufacturing, and renewable energy sectors worldwide across more than 100 countries.
Delving deep into R&D for switchgear components, equipped with full-process type testing and factory inspection devices for mechanical life, temperature rise, and dielectric verification.
Automated assembly lines and digital inspection stations ensure every step from raw parts to finished circuit breakers is under strict control, minimizing out-of-factory defect rates.
By balancing standardization with custom OEM/ODM flexibility, we precisely match client project specifications while shortening time-to-market and lowering procurement cost.
Tailored Solutions Across Critical Industrial, Commercial, and Renewable Projects
High-precision C-curve OFIS-DS circuit breakers guarantee zero false trips, preserving strict climate controls and sterile automation lines in Alajuela's medical tech sector.
Paired with DC Isolators and RCBOs in Guanacaste solar installations, protecting string inverters and energy storage batteries against overcurrent and earth leakage faults.
Compact DIN-rail breaker installations ensuring discrete, ultra-safe distribution panels for luxury rainforest eco-lodges in La Fortuna and Monteverde.
Explore Extended Low-Voltage Solutions: MCCB, MCB, RCCB, RCBO, and Isolator Switches
Everything You Need to Know About Procurement, Technical Standards, and Central American Delivery
Connect directly with our engineering team in Yueqing, Wenzhou for wholesale pricing, custom technical datasheets, and direct factory support for your Costa Rican projects.
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