High-performance miniature circuit breakers and residual current devices customized for Canadian distribution panels, industrial machinery, and extreme temperature resilience.
Canada's low-voltage electrical infrastructure is undergoing a fundamental transformation. Driven by rapid electrification in Ontario, massive renewable energy integration in Quebec and British Columbia, and heavy industrial extraction projects in Alberta, the demand for high-density, ultra-reliable circuit protection has reached an unprecedented peak.
The OFDPN Series Phase-Neutral Miniature Circuit Breaker (MCB & RCBO) system engineered by Wenzhou OFA Electrical Technology Co., Ltd. addresses Canada’s specific technical challenges. Designed to operate flawlessly within a standard 18mm single-module width while offering complete Phase + Neutral protection, the OFDPN series provides panel builders, EPC contractors, and OEM equipment manufacturers with 50% cabinet space savings without compromising short-circuit breaking capacity or thermal trip stability under sub-zero Canadian climate conditions.
Unlike traditional 2-pole modular circuit breakers that consume 36mm of DIN rail width, the OFDPN Series integrates Phase + Neutral switching and residual current detection into a hyper-compact 18mm housing.
Utilizing a 12-plate silver-alloy arc chamber, the OFDPN series extinguishes electrical arcs within 3 to 5 milliseconds during short-circuit events, drastically reducing thermal stress on cable insulation and preventing fire hazards in Canadian timber-frame commercial facilities.
High-precision bimetallic strips engineered for ambient compensation provide reliable overload protection across extreme Canadian winter-summer temperature deltas. Magnetic tripping mechanisms offer customizable B, C, and D curves tailored to sensitive electronics or high-inrush inductive motors.
Available in both Type AC (standard sinusoidal AC leakage) and Type A (pulsating DC residual current detection), safeguarding complex Canadian industrial loads, EV charging stations, and variable frequency drives (VFDs) against lethal ground faults.
| Parameter | OFDPN Miniature Circuit Breaker | OFDPN RCBO Series | OFPM RCCB Series |
|---|---|---|---|
| Standard Compliance | IEC/EN 60898-1, CSA C22.2 No. 5 | IEC/EN 61009-1, CE, RoHS | IEC/EN 61008-1 |
| Number of Poles | 1P+N (Switched Neutral) | 1P+N / 2P Compact | 2P / 4P |
| Rated Current (In) | 1A, 3A, 6A, 10A, 16A, 20A, 25A, 32A | 6A, 10A, 16A, 20A, 25A, 32A, 40A | 25A, 40A, 63A, 80A, 100A |
| Rated Voltage (Un) | 230V / 240V AC (50/60Hz) | 230V / 240V AC | 230V / 400V AC |
| Short-Circuit Capacity (Icn) | 6,000A / 10,000A | 6,000A | N/A (Pair with Fuse/MCB) |
| Residual Current Sensitivity (IΔn) | N/A | 10mA, 30mA, 100mA, 300mA | 30mA, 100mA, 300mA |
| Width per Module | 18mm (1 Module Width) | 18mm / 36mm | 36mm (2P) / 72mm (4P) |
| Operating Temperature | -40°C to +70°C | -35°C to +65°C | -25°C to +60°C |
| Electrical / Mech. Endurance | 10,000 / 20,000 Cycles | 10,000 / 20,000 Cycles | 10,000 / 20,000 Cycles |
Headquartered in Yueqing, Wenzhou — recognized worldwide as the Electrical Appliances Capital of China — Wenzhou OFA Electrical Technology Co., Ltd. operates a digitally integrated smart factory designed for volume stability, customization agility, and zero-defect output.
For Canadian electrical distributors and OEM partners, supply chain continuity is paramount. OFA has sustained a Grade A Tax Credit Rating for 7 consecutive years and maintains complete in-house manufacturing capabilities spanning precision stampings, silver alloy contact welding, automated bimetal calibration, and 100% full-inspection testing.
Providing systemic electrical safety across diverse industrial and commercial deployment environments throughout North America.
Ideal for multi-family residential towers in Toronto and Vancouver. The compact OFDPN 1P+N design doubles the available circuit slots within standard distribution enclosures, making panel upgrades fast and cost-effective.
Pairing OFDPN RCBO 30mA residual current protection with electric vehicle supply equipment (EVSE) ensures robust defense against ground faults, protecting drivers and municipal charging stations against electrical shock.
Together with our DCOF1-125/PV DC Miniature Circuit Breakers, OFA offers integrated AC/DC protection for battery storage systems, commercial solar arrays, and microgrid installations across remote Canadian communities.
Explore our complete catalog of MCBs, RCCBs, RCBOs, MCCBs, and Isolators engineered for international export and industrial compliance.
As North America transitions toward IoT-enabled microgrids and automated energy efficiency, OFA is pioneering smart protection innovations.
Embedding Modbus-RTU and IoT wireless communication protocols directly into OFDPN modular bodies for real-time power consumption analytics and remote trip telemetry.
Combining micro-processing algorithms to detect hazardous arc faults alongside traditional MCB/RCBO functions, aligning with modern North American fire safety mandates.
Eliminating toxic heavy metals, utilizing 100% recyclable thermoplastics, and achieving zero-carbon manufacturing footprints across all Wenzhou assembly facilities.
Expert technical answers regarding regulatory compliance, OEM customization, local shipping logistics, and product specifications.
Partner with Wenzhou OFA Electrical Technology Co., Ltd. — Your trusted source for high-performance OFDPN series miniature circuit breakers, RCBOs, and tailored power distribution equipment.
OFA Electrical
