SPD Leakage Current Explained: Is Lower Always Better? 2026 , 05 , 26 Power systems today face increasing exposure to lightning strikes, switching transients, and grid disturbances. Whether in industrial plants, photovol … Read More
MCB vs MCCB:Differences, Ratings, and Selection Guide 2026 , 03 , 06 Circuit breakers are essential components in electrical systems, protecting circuits from overloads and short circuits. Two of the most commonly used … Read More
5 Key Factors for MCCB Selection (Molded Case Circuit Breaker) 2026 , 02 , 28 What an MCCB really doesAn MCCB (molded case circuit breaker) is a low-voltage, air-insulated protective device used in distribution to switch, isolat … Read More
Why Hot Aerosol Systems are Becoming the "Smart Choice" for Critical Fire Protection 2026 , 01 , 04 When it comes to protecting high-value assets—like data centers, electrical cabinets, or engine rooms—the traditional soak it with water or smother it … Read More
How Type 2 DC Surge Protective Devices Improve PV Solar System Reliability 2025 , 11 , 28 Transient overvoltages in DC systems pose serious risks. These voltage spikes—typically caused by induced lightning surges or switching faults—can res … Read More
How to Select the Right DC Circuit Breaker for Your PV System 2025 , 11 , 21 The global expansion of solar power has established 1000V and 1500V DC systems as the standard for commercial and utility-scale projects. While higher … Read More
Global Overview of Power Grid Voltage and Frequency Standards 2025 , 10 , 11 Introduction: Why Power Standards Matter GloballyElectricity powers every aspect of modern life—but did you know that the world doesn’t share a single … Read More
ONCCY Electrical Will participate in The 138th Canton Fair 2025 Exhibition 2025 , 09 , 26 📅 Date: October 15–19, 2025📍 Booth: 16.3H03, Canton Fair Complex, Guangzhou, ChinaWe’re thrilled to announce that ONCCY Electrical will be exhibitin … Read More
ONCCY EDS5/6 DC Isolator Switches passed AS 60947.3:2023 SAA Certification 2025 , 09 , 22 ONCCY EDS5/6 DC Isolator Switches have successfully passed AS 60947.3:2023 and AS/NZS 60947.1:2021 testing, achieving SAA Certification in Australia.T … Read More
How to Select the Right Miniature Circuit Breaker (MCB) Protection Curve: From B, C, D to K, Z, and DC 2025 , 09 , 05 IntroductionMiniature Circuit Breakers (MCBs) may look simple, but choosing the right protection curve can be complex. Why do devices with the same ra … Read More
How to Select the Right Miniature Circuit Breaker (MCB) Protection Curve 2025 , 08 , 27 Introduction: Why MCB Protection Curves MatterMiniature circuit breakers (MCBs) look simple on the outside, but choosing the correct type is far from … Read More
Impulse Relays vs Modular Contactors: Which One Is Right for Your Electrical Control Needs? 2025 , 07 , 21 IntroductionWhen it comes to smart and efficient electrical switching, two technologies often come up in the conversation: impulse relays and modular … Read More
AC vs. DC Power Relays: What Makes Their Switching Design Different? 2025 , 07 , 11 Introduction: Why Relay Design MattersPower relays are essential components in modern electrical systems. They use a low-power signal to control high- … Read More
How to Install String-Level Rapid Shutdown? 2025 , 06 , 27 IntroductionAs the use of rooftop and commercial photovoltaic (PV) systems grows, ensuring system safety becomes more critical—especially when it come … Read More
ONCCY Showcases Solar Protection Components at Solar & Storage Live Philippines 2025 2025 , 05 , 29 ONCCY Electrical, a prominent manufacturer of photovoltaic energy storage and protection devices, made a significant impact at Solar Storage Live Phi … Read More
