High-performance molded case circuit breakers optimized for severe environmental conditions, renewable integration, and heavy industrial distribution across South America.
Colombia’s industrial landscape is undergoing an unprecedented modernization process. From the expanding solar corridors in La Guajira to the high-density manufacturing clusters in the Sabana de Bogotá, Medellín (Antioquia), and Cali (Valle del Cauca), grid reliability is paramount. Furthermore, Colombia’s unique topography—ranging from humid coastal ports like Barranquilla and Buenaventura to mountain installations exceeding 2,600 meters above sea level—places extraordinary stress on electrical distribution equipment.
Wenzhou OFA Electrical Technology Co., Ltd. supplies the flagship OFBLT Series Molded Case Circuit Breakers (MCCB) specifically designed to mitigate electrical fault risks under harsh operational conditions. Compliant with international standard IEC/EN 60947-2 and aligned with Colombia's RETIE (Reglamento Técnico de Instalaciones Eléctricas) safety directives, our equipment ensures seamless overcurrent, short-circuit, and isolation protection across AC and DC architectures.
Every OFBLT series MCCB undergoes 100% full-process factory verification, including thermal-magnetic calibration, dielectric withstand testing at high altitude, and mechanical endurance cycling. By integrating thermosetting BMC (Bulk Molding Compound) enclosures and silver-alloy contact bridges, OFA delivers ultimate breaking capacity and flame-retardant security.
Tailored low-voltage protection solutions built for Colombia’s complex geography, heavy industries, and rapid renewable energy expansion.
Colombia’s northern coast presents intense solar irradiation paired with high ambient temperatures and saline corrosion. The OFBLT 1500V DC series circuit breakers provide essential protection for centralized string inverters and DC combiner boxes, preventing reverse-current faults and catastrophic thermal runaway.
Operating electrical equipment above 2,000 meters altitude reduces air density and thermal dissipation capabilities. OFBLT MCCBs feature engineered derating compensation matrices, allowing reliable arc quenching in gold, emerald, and coal extraction sites across mountainous terrain.
Heavy machinery and automated assembly lines require unyielding short-circuit interruption. With ultimate breaking capacity (Icu) up to 100kA at 415V AC, the OFBLT series safeguards motor control centers (MCC), transformer secondaries, and commercial main switchboards.
Comprehensive engineering parametric data for system integrators, EPC contractors, and panel builders in Colombia.
| Model Series | Rated Current (In) | Poles (P) | Rated Voltage (Ue) | Breaking Capacity (Icu) | Trip Unit Technology | Primary Target Sector |
|---|---|---|---|---|---|---|
| OFBLT-125 | 16A - 125A | 3P / 4P | AC 400V/415V | 35kA / 50kA | Thermal-Magnetic Fixed | Commercial Distribution & Small Motors |
| OFBLT-250HU | 100A - 250A | 2P / 3P / 4P | DC 1000V / 1500V | 65kA | Specialized DC Magnetic Arc Chute | Solar PV Inverters & Battery Storage (BESS) |
| OFBLT-400H | 250A - 400A | 3P / 4P | AC 400V/690V | 70kA / 85kA | Electronic / Microprocessor Smart Trip | Industrial Substation & Heavy Manufacturing |
| OFBLT-800H | 400A - 800A | 2P (DC) / 3P / 4P | AC 415V / DC 1200V | 85kA / 100kA | Adjustable Thermal + Instantaneous | Mining Switchgear & Utility Feeders |
Deploying modular, robust circuit protection architecture engineered to satisfy RETIE standard NTC 2050 (Colombian National Electrical Code).
Direct Current (DC) circuits lack natural zero-crossing points, making arc extinction exceptionally difficult. The OFBLT DC Series employs permanent magnetic blowouts coupled with multi-grid arcing chambers to split and extinguish high-voltage DC arcs in milliseconds. This system prevents catastrophic failure in string combiners, central inverters, and battery container enclosures across high-altitude and high-heat Colombian solar parks.
Continuous vibration, dust ingress, and frequent voltage fluctuations are common in Colombian mining operations in Boyacá and Antioquia. OFBLT circuit breakers feature reinforced structural ribs, high-dielectric BMC housings, and silver-tin-oxide contacts that resist welding under transient short-circuit currents up to 100kA.
How OFA is advancing electrical safety through intelligent IoT connectivity, eco-friendly materials, and solid-state protection technologies.
Integration of RS485 Modbus and Modbus-TCP communications directly into OFBLT electronic trip units. Enables real-time current telemetry, thermal predictive analysis, and remote tripping for smart grid automation in Colombia’s municipal networks.
Transitioning 100% of breaker casing materials to fully recyclable, zero-halogen thermosetting polymers. Reduces toxic gas emissions during electrical flashovers, aligning with global ESG standards and Colombian environmental regulations.
Development of microsecond-response hybrid solid-state circuit breaker modules for ultra-critical installations like data centers in Bogotá and financial telecommunication hubs requiring microsecond fault clearing.
Founded in 2013 in Yueqing, Wenzhou—the world-renowned capital of low-voltage electrical manufacturing in China—Wenzhou OFA Electrical Technology Co., Ltd. has grown into an international leader in distribution switchgear and control components.
With independent brand registration for "OFA", our state-of-the-art facilities combine automated assembly lines, digital inspection stations, and rigorous laboratory testing procedures. Rated as Tax Credit Grade A for seven consecutive years, we maintain a steadfast reputation for integrity, quality consistency, and rapid order delivery.
We provide global partners—including engineering EPCs, distributors, and OEMs in Colombia—with tailored ODM/OEM capabilities, ensuring full compliance with ISO9001, CE, and IEC standards.
Expert answers regarding OFBLT breaker selection, RETIE compliance in Colombia, and procurement logistics.
Explore our comprehensive lineup of MCBs, MCCBs, RCCBs, and RCBO units available for deployment in Colombia.
Contact our engineering consultants today to receive technical datasheets, CAD models, RETIE compliance verification, and factory-direct pricing for the OFBLT Series.
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