Engineered for high breaking capacities, solar PV combiner boxes, and severe ambient conditions.
Peru's industrial ecosystem is entering a transformative growth cycle, driven by intense investments in copper/lithium mining extractions (across regions like Ancash, Arequipa, Moquegua, and Cajamarca) and a nationwide shift toward utility-scale renewable energy generation. The technical demands placed on low-voltage distribution switchgear and Molded Case Circuit Breakers (MCCBs) in Peru are uniquely rigorous compared to low-altitude coastal industrial markets.
Over 60% of Peru's mining operations operate in altitude ranges exceeding 3,000 meters above sea level. The rarefied air severely impairs traditional dielectric insulation strength and thermal dissipation efficiency. The OFBLT Series is structurally redesigned with expanded arcing distances and modified thermal-magnetic tripping parameters to ensure zero catastrophic failures under severe altitude derating conditions.
Southern Peru possesses some of the highest solar irradiance levels in the world. Modern 1000V DC and 1500V DC solar PV installations demand circuit protection components capable of handling continuous direct current arc suppression. OFBLT DC Molded Case Circuit Breakers incorporate permanent magnet arc-extinguishing channels tailored specifically for solar combiner boxes and central inverters.
With mega-projects such as the Port of Chancay hub and Lima Metropolitan infrastructure expansions, switchboards face high ambient humidity, saline atmospheric corrosion, and intense harmonic fluctuations. The OFBLT enclosure materials utilize anti-corrosive, flame-retardant BMC/DMC housing materials meeting UL94-V0 flammability standards.
The OFBLT Series represents Wenzhou OFA Electrical Technology’s pinnacle engineering standard for industrial circuit breaker architecture. Unlike entry-level residential breakers, the OFBLT family combines advanced arc-quenching geometry, reinforced silver-alloy contact bridges, and precision dual-metal thermal trip units.
| Series Parameter | OFBLT-250HU / BLTM3DC | OFBLT-320A Series | OFBLT-800H Series | OFP / OFDL / OFKL Series |
|---|---|---|---|---|
| Target Application | Solar PV / DC Distribution | Industrial Distribution / Motors | Heavy Mining / Main Feeders | Sub-distribution / DIN-Rail Panels |
| Rated Operational Voltage (Ue) | 500V - 1500V DC | 400V / 690V AC | 1000V DC / 690V AC | 230V / 400V AC |
| Rated Current Range (In) | 63A - 250A | 100A - 320A | 400A - 800A | 1A - 125A |
| Ultimate Breaking Capacity (Icu) | 35kA @ 1000V DC | 50kA @ 400V AC | 65kA - 100kA | 6kA - 10kA |
| Trip Unit Technology | Thermal-Magnetic / Electronic | Adjustable Thermal-Magnetic | Microprocessor-Based Electronic | Fixed Thermal-Magnetic Curve C/D |
| High Altitude Compensation | Derating factor applied above 2000m | Factory custom calibration option | Special altitude-chamber verified | Standard IEC ambient calibration |
Direct current lacks a natural zero-crossing point, making DC arcs drastically harder to extinguish than AC arcs. OFBLT DC series breakers feature extended internal arc chutes engineered with multi-segment copper-plated grid plates and targeted magnetic blow-out coils. As the contacts separate, the magnetic field forces the arc rapidly into the chute, cooling and breaking the electrical path within milliseconds.
For heavy industrial infrastructure in Peru, electrical noise and wide temperature swings necessitate robust protection options. OFBLT units offer interchangeable trip mechanisms: proven bimetallic elements for precise overload timing, alongside micro-processor electronic trip units providing selective LSI protection (Long-time, Short-time, Instantaneous) for critical selective coordination selective schemes.
Headquartered in Yueqing, Wenzhou—the world-renowned capital of electrical equipment manufacturing—Wenzhou OFA Electrical Technology Co., Ltd. leverages over a decade of deep R&D and lean manufacturing capabilities. Our digital-twin-enabled smart factory bridges top-tier component engineering with high-volume cost efficiency.
Every OFBLT bimetallic thermal strip is calibrated on fully automated laser-guided testing rigs, eliminating human error and ensuring tight compliance with IEC instantaneous trip curves.
We strictly enforce a 100% full-inspection Standard Operating Procedure (SOP). Every single breaker undergoes dielectric withstand testing, contact resistance measuring, and mechanical endurance verification before export shipment.
By eliminating intermediary trading markups and managing in-house stamping, molding, and assembly, OFA delivers premium industrial quality at highly competitive FOB/CIF terms for Peruvian importers.
The OFBLT Series is engineered not merely as a standalone device, but as an integrated solution within multi-tier power distribution systems.
Tailored for copper mine processing plants, underground conveyor lines, and heavy crushing equipment. High short-circuit withstand withstand capability (Icw) prevents nuisance trips while safeguarding high-power motor drivers against destructive phase-faults.
Seamlessly integrated into string combiner boxes and inverter DC disconnect cabinets across solar projects in Tacna, Moquegua, and Arequipa. Resistant to extreme UV, thermal cycling, and high transient overvoltages.
Designed for logistics hubs, manufacturing complexes, and marine terminal switchboards. Provides total selective coordination with upstream Air Circuit Breakers (ACB) and downstream Miniature Circuit Breakers (MCB).
Procuring electrical components for major Peruvian engineering procurement and construction (EPC) projects requires absolute adherence to regulatory standards established by national energy oversight bodies such as Osinergmin and national technical norms (NTP - Normas Técnicas Peruanas).
The OFBLT MCCB series fully complies with International Electrotechnical Commission (IEC) standard 60947-2 for industrial circuit breakers and IEC 60898-1 for building distribution switchgear. Test reports from accredited third-party labs (CE, CB, TUV certified) are provided with all shipping documentation to ensure smooth customs clearance and utility authorization in Peru.
Thanks to the China-Peru Free Trade Agreement (FTA) and optimized direct maritime corridors connecting Shanghai/Ningbo ports to Callao and Chancay, Peruvian clients benefit from preferential tariff rates, simplified Certificate of Origin (Form F) processing, and significantly compressed transit lead times.
Explore our full array of Molded Case Circuit Breakers (MCCB), Miniature Circuit Breakers (MCB), Air Circuit Breakers (ACB), RCCBs, and RCBOs.
Wenzhou OFA Electrical Technology Co., Ltd. is a premier professional supplier of distribution switchgear and control equipment in China. Founded in 2013, the company is rooted in Yueqing, Wenzhou — the Capital of Electrical Appliances in China. Owning independent brands such as "OFA", our product portfolio spans low-voltage power distribution, industrial automation control, high-altitude mining equipment protection, and renewable energy switchgear solutions.
Rooted in Yueqing for over a decade, OFA has consistently delivered stable performance components at direct factory price advantages. Operating with complete financial transparency, OFA has been officially rated as Tax Credit Grade A for seven consecutive years, earning long-term procurement trust from global system integrators and distributors.
Our engineering team operates advanced in-house testing laboratories equipped to perform full-process type tests, including mechanical life testing (up to 20,000 operations), temperature rise verification, dielectric impulse withstand testing, and continuous trip calibration checks.
When selecting circuit breaker suppliers for high-stakes projects in Peru, evaluating initial equipment purchase cost alone can lead to hidden project expenses. A comprehensive Total Cost of Ownership (TCO) evaluation framework ensures project profitability and operational longevity.
Provide exact ambient environmental profiles (altitude, relative humidity, harmonic content) to OFA engineers. We calculate optimal derating parameters to specify exact breaker frames without costly over-engineering.
For Peruvian panel builders and electrical distributors, OFA offers comprehensive private labeling, customized dial scale prints, custom enclosure colors, and localized packaging in Spanish.
Maintain continuous operation with modular internal accessories (shunt trips, auxiliary switches, alarm contacts, motor operators). OFA provides complete technical documentation and wiring schematics for seamless panel integration.
Direct technical answers for electrical engineers, panel builders, and procurement officers.
At high altitudes (above 2,000m ASL), atmospheric density decreases significantly. Thin air reduces both the cooling dissipation efficiency of electrical contacts and the dielectric strength of air gaps. Consequently, breakers operating in high-altitude Peruvian mines must either be derated in continuous operating current (In) and operating voltage (Ue) or built with extended creepage distances like our specialized OFBLT high-altitude configurations.
Alternating Current (AC) naturally passes through zero voltage 100 or 120 times per second, aiding arc extinction. Direct Current (DC) maintains constant voltage and current, generating persistent high-energy arcs during fault interruption. OFBLT DC breakers utilize permanent internal magnets to physically stretch and blow the arc into heavy-duty quenching chutes, ensuring rapid fault clearance up to 1500V DC.
Yes. OFBLT series products are designed and tested according to IEC 60947-2 international standards, which serve as the technical backbone for Peru’s National Electrical Code (Código Nacional de Electricidad - CNE) and NTP norms. Complete type-test certificates (CE, CB, TUV) are provided for seamless compliance filing.
We provide full-spectrum OEM/ODM solutions: customized current rating markings, laser-engraved client logos, specialized auxiliary wiring options, Spanish language technical data sheets, and custom outer packaging designed for rugged sea transport to Callao or Chancay ports.
Standard order production runs between 15 to 25 days depending on volume and customization needs. Direct vessel routes from Ningbo/Shanghai to Callao or Chancay port take approximately 24 to 32 days. Expedited air shipping is available for critical project spares.
Partner with Wenzhou OFA Electrical Technology Co., Ltd. for factory-direct pricing, certified reliability, and tailored engineering support across the OFBLT Series lineup.
Send Inquiry Now
OFA Electrical