Engineered for seamless integration into Korean standard distribution boards (KEC compliant), providing unmatched breaking capability, thermal stability, and long-cycle reliability.
Compact single-pole MCB optimized for high-density single-phase control circuits in Korean industrial automation panels.
Dual-pole circuit protection engineered for 220V AC single-phase dual-line switching with enhanced short-circuit withstand.
Three-pole industrial breaker tailored for 380V/440V 3-phase heavy motor drives, cleanroom HVAC systems, and power panels.
Four-pole isolation breaker providing complete neutral line protection for commercial complexes and critical IT infrastructure.
South Korea’s industrial sector is undergoing a rapid transition driven by high-tech manufacturing expansion, large-scale EV battery storage plants, and strict adherence to updated electrical codes. The implementation of the Korea Electrical Code (KEC) has aligned local installation norms more closely with international IEC standards, demanding higher breaking capacity, lower temperature rise, and strict fire-retardant parameters for switchgear and control components.
In high-tech industrial nodes such as the Yongin Semiconductor Cluster, Pyeongtaek Memory Fabs, and Songdo Smart City complexes, uninterrupted power quality is paramount. Electrical failure or nuisance tripping leads to catastrophic productivity loss. The OFPF Series Miniature Circuit Breaker (MCB) platform has been tailored to solve these challenges. Incorporating advanced arc-quenching geometries, high-purity silver-graphite contacts, and flame-retardant thermosetting enclosures, OFPF breakers provide reliable protection against overloads and short circuits in harsh, high-vibration, and continuous-duty environments.
Empowering global EPC contractors, panel builders, and electrical distributors with verifiable engineering metrics.
Located in Yueqing, Wenzhou—the globally recognized "Capital of Electrical Appliances"—Wenzhou OFA Electrical Technology Co., Ltd. combines an unmatched raw material supply ecosystem with state-of-the-art automated manufacturing line design. This industrial density enables us to deliver superior quality control and pricing agility compared to traditional European or local domestic brands in Korea.
For Korean procurers, system integrators, and OEM brand owners, sourcing OFPF Series components from OFA offers three core strategic advantages:
Rigorous engineering specifications matched for low-voltage power distribution, industrial automation panels, and commercial switchgear.
| Electrical Parameter | Specification Detail (OFPF Series) | Korean Industrial Relevance |
|---|---|---|
| Standard Compliance | IEC/EN 60898-1, IEC/EN 60947-2, CE, ISO9001 | Complies with KEC (Korea Electrical Code) guidelines |
| Poles Available | 1P, 2P, 3P, 4P | Covers 220V 1-phase & 380V/440V 3-phase industrial power |
| Rated Current (In) | 1A, 2A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A | Granular protection for delicate PLC inputs up to heavy pumps |
| Rated Voltage (Un) | 230V/400V ~ 240V/415V AC (50/60Hz) | Fully compatible with Korea's 60Hz grid frequency standard |
| Breaking Capacity (Icn) | 6,000A / 10,000A (6kA / 10kA) | Handles elevated short-circuit currents in urban sub-stations |
| Tripping Characteristics | B Curve (3-5In), C Curve (5-10In), D Curve (10-14In) | Tailored for resistive lighting, inductive motors & high-inrush loads |
| Mechanical & Electrical Life | Electrical: 10,000 operations | Mechanical: 20,000 operations | Long lifecycle reducing maintenance overhead in smart factories |
| Housing Material | PA66 Flame-Retardant Thermo-plastic (UL94 V-0 Rated) | High fire safety rating required for high-occupancy commercial buildings |
From cleanrooms to outdoor solar farms, OFPF Series circuit breakers deliver reliable terminal protection across diverse environments.
Deployed in precision distribution boxes powering automated material handling systems (AMHS) and cleanroom environmental control units in Yongin and Pyeongtaek fabs. High harmonic immunity prevents false tripping.
Selected by energy storage integrators in Ochang and Ulsan. OFPF circuit breakers safeguard auxiliary DC control loops and battery management system (BMS) enclosures against transient overcurrent events.
Serving Gangnam, Pangyo Techno Valley, and Songdo smart building management systems. Flame-retardant enclosures and high breaking capacity ensure compliance with strict Korean architectural safety codes.
Driving continuous progress in power distribution with pragmatic engineering, strict quality control, and decades of industry heritage.
Wenzhou OFA Electrical Technology Co., Ltd. is one of the professional suppliers 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 products cover multiple industries including power, energy, industrial automation, construction, and equipment manufacturing.
Rooted in Yueqing for over a decade, OFA provides partners with distribution switchgear and control equipment and supporting products that feature stable performance and significant cost advantages. We adhere to honest and law-abiding operations, have been rated as tax credit grade A for seven consecutive years, and have earned the long-term trust of numerous global clients.
Everything Korean buyers, engineers, and distributors need to know about OFPF Series circuit breakers and working with OFA.
A: The OFPF Series is designed and manufactured in full accordance with IEC/EN 60898-1 and IEC 60947-2 standards, which form the technical core of the Korea Electrical Code (KEC). They operate flawlessly on Korean standard 60Hz AC frequencies and match standard 35mm DIN-rail mounting configurations.
A: Yes. We offer comprehensive OEM/ODM services including customized B, C, or D tripping curves, tailored current ratings (1A to 63A), custom terminal markings, and laser-engraved branding for Korean switchgear manufacturers.
A: For standard OFPF series inventory, goods can be dispatched within 7 days. Sea freight shipping from Ningbo/Shanghai port to Incheon or Busan takes approximately 3–5 days, providing an agile supply chain for urgent project orders.
A: OFA enforces a 100% full-inspection standard operating procedure (SOP). Every single unit undergoes instantaneous thermal-magnetic calibration testing, dielectric withstand voltage tests, and contact resistance checks prior to packaging.
A: OFPF breakers feature optimized internal air ventilation channels and low-resistance silver-alloy contacts. This minimizes internal power loss (W) and prevents thermal nuisance tripping in compact, high-density enclosures.
A: We provide a standard 18-month warranty from shipment date along with lifelong technical support. Our engineering team offers online CAD drawing review, specification matching, and rapid failure diagnosis support.
From RCBOs and RCCBs to high-capacity MCCBs, engineered for complete industrial power automation.
Combined residual current protection with overcurrent protection for compact safety in commercial and industrial boards.
High-sensitivity earth leakage guardian preventing shock hazards and electrical fires in damp industrial settings.
Precision single-pole breaker designed for fast trip response in standard control and lighting circuits.
Standard 6kA breaking capacity dual-pole circuit breaker suitable for residential and light commercial sub-panels.
Heavy-duty MCCB engineered for main incoming line protection in heavy industrial plants and sub-stations.
Advanced residual current protection with electromagnetic tripping mechanism for personnel safety.
Medium-to-high capacity MCCB featuring adjustable trip settings for commercial distribution switchboards.
Four-pole miniature breaker delivering simultaneous multi-phase line disconnection for high-security applications.
Accelerate your projects in South Korea with certified OFPF Series circuit breakers, custom OEM/ODM solutions, and direct factory pricing from Yueqing's low-voltage cluster.
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