Explore our flagship Molded Case Circuit Breakers (MCCB) and protection devices rigorously tested for high-altitude mining applications and desert solar PV installations throughout Chile.
Chile stands as South America's industrial vanguard, driven by its world-leading copper extraction sector in regions like Antofagasta, burgeoning lithium mining operations across the Salar de Atacama, and an aggressive energy transition toward renewable energy. The national grid system, governed by the National Electrical Coordinator (Coordinador Eléctrico Nacional - CEN) and regulated by the Superintendencia de Electricidad y Combustibles (SEC), requires ultra-reliable low-voltage distribution components capable of withstanding extreme environmental operational stresses.
The DCM1 Series Molded Case Circuit Breaker (MCCB) engineered by Wenzhou OFA Electrical Technology Co., Ltd. has established itself as an indispensable protective cornerstone for switchboard builders, electrical EPC contractors, and industrial procurement buyers operating in Chile. Designed to handle rated currents ranging from 16A up to 1250A with breaking capacities ($I_{cu}$) exceeding standard industrial requirements, the DCM1 series provides precision over-current, short-circuit, and under-voltage protection for complex distribution networks.
Mining facilities in the Andes often operate above 3,000 to 4,500 meters altitude where thin air lowers dielectric insulation properties and heat dissipation. The DCM1 Series features reinforced arc chambers and recalibrated thermal trips designed specifically to maintain rated performance under high-altitude derating parameters.
Chile's northern desert presents intense UV radiation, wide diurnal ambient temperature fluctuations (-10°C to +45°C), and high solar thermal load. DCM1 breakers utilize anti-aging thermosetting enclosures rated V-0 flame retardant to prevent thermal deformation and dielectric breakdown.
Industrial port hubs in Valparaíso, San Antonio, and Mejillones demand protection against marine salinity (C4/C5 atmospheric corrosion). DCM1 components feature nickel-plated copper current paths, stainless hardware, and robust mechanical structures resilient to Chile's frequent seismic activity.
Our DCM1 Series MCCB combines modern arc extinguishing geometry, silver-alloy contact bridges, and precise trip mechanisms designed in accordance with IEC/EN 60947-2 and fully compliant with Chilean SEC electrical protocols.
| Technical Parameter | DCM1-63 / 125 Frame | DCM1-250 Frame | DCM1-400 / 630 Frame | DCM1-800 / 1250 Frame |
|---|---|---|---|---|
| Rated Current ($I_n$) | 16A, 25A, 32A, 40A, 50A, 63A, 80A, 100A, 125A | 125A, 160A, 180A, 200A, 225A, 250A | 250A, 315A, 350A, 400A, 500A, 630A | 630A, 700A, 800A, 1000A, 1250A |
| Number of Poles | 1P, 2P, 3P, 4P | 3P, 4P | 3P, 4P | 3P, 4P |
| Rated Insulation Voltage ($U_i$) | 800V AC | 800V AC | 1000V AC | 1000V AC |
| Rated Operational Voltage ($U_e$) | 400V / 690V AC | 400V / 690V AC | 400V / 690V AC | 400V / 690V AC |
| Ultimate Short-Circuit Breaking ($I_{cu}$) | 25kA - 50kA | 35kA - 65kA | 50kA - 85kA | 65kA - 100kA |
| Service Short-Circuit Breaking ($I_{cs}$) | 100% $I_{cu}$ or 75% $I_{cu}$ | 100% $I_{cu}$ or 75% $I_{cu}$ | 75% $I_{cu}$ | 75% $I_{cu}$ |
| Trip Unit Technology | Thermal-Magnetic Fixed | Thermal-Magnetic Adjustable | Electronic / Microprocessor | Intelligent Electronic Trip Unit |
| Compliance Certifications | CE, IEC 60947-2, ISO9001, SEC Chile Compatible | CE, IEC 60947-2, ISO9001, SEC Chile Compatible | CE, IEC 60947-2, ISO9001, SEC Chile Compatible | CE, IEC 60947-2, ISO9001, SEC Chile Compatible |
Founded in 2013, Wenzhou OFA Electrical Technology Co., Ltd. is one of the professional suppliers of distribution switchgear and control equipment in China. Rooted in Yueqing, Wenzhou — the Capital of Electrical Appliances in China — we operate under independent brands such as "OFA" and serve international clients across power energy, industrial automation, commercial construction, and equipment manufacturing.
We have introduced automated assembly lines and digital inspection stations, ensuring every step from individual molded components to finished circuit breakers undergoes strict in-process control. Our technical team equipped with full-process type testing and factory inspection devices enables rigorous verification of mechanical life, temperature rise, contact resistance, and insulation performance under extreme loads.
By leveraging the China-Chile Free Trade Agreement (FTA), Chilean importers benefit from preferential tariff rates (Certificate of Origin Form F). OFA provides custom labeling, OEM/ODM configurations, expedited maritime freight to Valparaíso or San Antonio, and full compliance documentation tailored for Chilean SEC verification.
From heavy crushing mills to flotation plants in Northern Chile (Calama, Antofagasta), DCM1 MCCBs act as main incoming and branch feeder breakers. They prevent catastrophic plant shutdowns caused by transient voltage spikes and severe motor startup current surges.
Integrated directly into combiner boxes and inverter distribution step-up stations across the Atacama region, our DC-rated breakers (OF1-250/PV) and DCM1 AC breakers guarantee reliable isolation during microgrid balance-of-plant operation.
In urban hubs like Santiago Metropolitan Area and Concepción, DCM1 MCCBs protect panelboards in hospital complexes, data centers, and modern high-rise office towers, seamlessly interfacing with building management system (BMS) auxiliary contacts.
Whether you require standard off-the-shelf breakers or fully customized OEM/ODM switchgear solutions for Chilean government bids and private mining projects, we follow a transparent engineering workflow:
Core Needs: Proven, stable solutions, rapid implementation, clear ROI, and easy maintenance for retrofits, building panels, and distributed PV grid ties.
Core Needs: High-reliability design with redundancy, seamless integration with existing SCADA/DCS systems, full lifecycle technical collaboration.
OFA's full product catalog engineered for industrial, commercial, solar, and residential applications:
MCCB primary function is to make, carry, and break currents under normal circuit conditions, and to make, carry for a specified time, and break currents under specified abnormal conditions such as overload and short circuit. Critical protection device providing robust over-current containment.
At the end of modern low-voltage power distribution systems, the safety and stability of every circuit rely on a reliable and sophisticated guardian—the Miniature Circuit Breaker (MCB). Featuring compact space-saving designs and high breaking capacities.
Our Intelligent Air Circuit Breaker (ACB) product line is precisely designed as a high-performance core protection and control device for incoming main switchboards, featuring deep intelligence and flexible expandability.
High-reliability earth leakage protection solutions. RCBO products innovatively integrate three core functions—overload protection, short-circuit protection, and high-sensitivity earth leakage protection—into a single compact unit.
The IS Series innovatively integrates complete protective functions with isolated disconnector safety, ensuring total circuit isolation during system maintenance.
See why system integrators and site managers rely on OFA for their electrical infrastructure:
"Our PV project required reliable communication management and data acquisition equipment in harsh ambient conditions. OFA's DCM1 and DC circuit breaker products met our core technical needs at a reasonable price and could adapt to our local outdoor desert environment in Chile. Their engineers provided excellent configuration guidance during the initial phase."
"As a system integrator, our company has collaborated with OFA on several industrial automation projects. Their product range is quite comprehensive, covering everything from protective relays to communication gateways and MCCBs, which simplifies our procurement and integration work. Product quality is consistent, reducing on-site commissioning hassles."
"We purchased OFA's intelligent power monitoring devices and DCM1 breakers to upgrade the power distribution system in our workshop. The installation and setup were simpler than expected, and integration went smoothly. Most importantly, they have been running very stably for over a year."
"Deploying OFA's energy efficiency management system for several office buildings we manage was a wise decision. The system helped us gain detailed insights into electricity usage and achieve energy savings through optimized operational strategies."
Browse the remaining low-voltage circuit protection components available for factory-direct dispatch to Chile:
Have questions about our MCCB DCM1 Series, custom OEM capabilities, or shipping logistics to Chile? Explore detailed answers below.
Wenzhou OFA Electrical Technology Co., Ltd. is a technology enterprise specializing in integrated power automation, low-voltage distribution, and energy efficiency management solutions. Founded in 2013 in Yueqing, Wenzhou — the capital of electrical appliances in China — we provide end-to-end solutions ranging from smart hardware (MCCB, MCB, ACB, RCCB) to edge controllers and custom switchgear.
Our core strength lies in our system-level solution capability and over a decade of dedicated manufacturing excellence. Adhering to honest operations, we have been rated as Tax Credit Grade A for seven consecutive years.
Yes. Our DCM1 Series Molded Case Circuit Breakers are manufactured under strict ISO9001 quality protocols and fully conform to international standard IEC/EN 60947-2. These international test reports form the foundation for certification approval by Chile's Superintendencia de Electricidad y Combustibles (SEC), facilitating smooth customs clearance and local panel installation.
At altitudes above 2,000 meters (such as copper mines in Calama or Antofagasta), reduced air density impacts heat dissipation and dielectric insulation strength. For installations above 2,000m, standard derating factors apply: at 3,000m altitude, operational voltage $U_e$ is typically derated to 88% and rated current $I_n$ to 94%. OFA provides precise technical altitude derating charts to assist Chilean design engineers.
Yes. We have an experienced R&D team capable of developing customized solutions according to specific technical requirements. We offer flexible customization in trip unit calibration, auxiliary contacts, shunt releases, customized enclosure colors, private label branding, and packaging to help reduce procurement costs and shorten time-to-market.
Our portfolio includes:
We work with experienced international freight forwarders to provide FOB, CIF, or DDP shipments directly to main Chilean ports including Valparaíso, San Antonio, and Iquique. Furthermore, under the China-Chile Free Trade Agreement (FTA), we provide official Certificate of Origin (Form F), allowing Chilean buyers to import our circuit breakers with zero or reduced import tariffs.
We maintain flexible MOQ policies for standard DCM1, MCB, and RCCB products to support both small engineering projects and large industrial procurement orders. Standard inventory items can ship quickly, while custom production batches typically take 15 to 25 days depending on specification requirements.
We provide a standard full factory warranty on all circuit breaker series. Our engineering support team offers dedicated remote assistance via email, video conference, wiring diagrams, and technical documentation to ensure seamless commissioning and long-term operating stability.
Contact OFA's technical sales team today to request complete DCM1 series datasheets, SEC compliance documentation, or factory-direct pricing for your next project.
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