Engineered to withstand rigorous European DIN VDE standards, offering exceptional breaking capacity, thermal stability, and long-service endurance.
As Germany advances its ambitious Energiewende (Energy Transition) alongside the digital transformation under Industrie 4.0, electrical infrastructure across key industrial hubs like Baden-Württemberg, Bavaria, and North Rhine-Westphalia requires unprecedented circuit reliability.
Modern automated manufacturing plants, commercial green architectures, and decentralised renewable energy grids demand circuit protection equipment that complies strictly with DIN EN 60898-1 and IEC/EN 60947-2 standards. The OFDL Series is specifically architected to mitigate overcurrent risks, high-surge transient peaks, and short-circuit faults in modern high-density electrical networks.
Explore the physical and electrical design specs that make OFDL miniature circuit breakers the preferred choice for German system integrators, OEM panel builders, and electrical engineering firms.
Features ultra-sensitive bimetallic strips for overload detection alongside rapid electromagnetic coils for instant short-circuit tripping across B, C, and D curves.
Equipped with a 12-plate arc chute chamber that rapidly extinguishes electrical arcs within milliseconds, dramatically reducing thermal stress on internal contacts.
Standardized 18mm module width per pole designed for quick snap-on installation onto 35mm DIN rails, simplifying control cabinet upgrades across German facilities.
| Specification Parameter | OFDL Standard Specification | Industrial High-Duty Spec | German DIN Norm Alignment |
|---|---|---|---|
| Rated Current (In) | 1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A | Up to 125A Customized | DIN EN 60898-1 |
| Number of Poles | 1P, 2P, 3P, 4P, 1P+N, 3P+N | Customized Auxiliary Contact Configurations | IEC 60947-2 / VDE 0660 |
| Tripping Characteristics | B Curve (3-5 In), C Curve (5-10 In) | D Curve (10-14 In) for Inductive Loads | DIN VDE 0641-11 |
| Breaking Capacity (Icu) | 6,000A (6kA) | 10,000A (10kA) | EN 60898-1 / EN 60947-2 |
| Mechanical / Electrical Endurance | 20,000 Operations / 10,000 Operations | 25,000 Operations / 12,000 Operations | IEC Industrial Grade Class A |
| Protection Degree & Housing | IP20 (Terminal IP40 Enclosed) | V-0 Anti-UV Self-Extinguishing Material | DIN 40050 / IEC 60529 |
Operating from Wenzhou—the world-renowned capital of electrical appliances—Wenzhou OFA Electrical Technology Co., Ltd. leverages a highly integrated industrial ecosystem to offer German business partners unmatched supply chain security and cost advantages.
By blending automated laser welding, computerized mechanical endurance testing, and full-chain raw material traceability, our smart manufacturing base guarantees zero-defect deliveries while remaining agile enough to accommodate OEM/ODM customizations for complex German engineering projects.
From automotive robotic production lines in Stuttgart to massive solar photovoltaic deployments in Bavaria, the OFDL Series protects critical assets across diverse sectors.
High-inrush motors and automated robotic arms in Baden-Württemberg plants require D-Curve OFDL circuit breakers to prevent nuisance tripping while shielding delicate PLCs.
German solar parks utilize multi-pole OFDL MCBs within combiner boxes and inverter interfaces to guard against reverse currents and DC grid transients.
Energy-efficient commercial complexes in Frankfurt integrate 1P and 2P B/C curve OFDL breakers for sub-distribution sub-metering and sub-circuit isolations.
Founded in 2013, Wenzhou OFA Electrical Technology Co., Ltd. is a recognized technology enterprise rooted in Yueqing, Wenzhou. We specialize in distribution switchgear, control equipment, and low-voltage accessories designed for global applications in power, renewable energy, building infrastructure, and industrial automation.
Through flexible production that combines standardization and customization, we precisely match our customers' technical specification requirements while providing highly cost-effective electrical configurations. Relying on a responsive service network, we offer long-term engineering support throughout the product lifecycle.
Discover how engineering leaders, facility directors, and OEM integrators rely on OFA’s electrical protection solutions.
Complete your power distribution architecture with our full suite of residual current devices, molded case circuit breakers, and intelligent air circuit breakers.
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