With the rapid development of photovoltaic, energy storage, DC microgrid, flexible power grid and other industries, DC systems are evolving toward higher voltage, larger current and higher reliability. Meanwhile, the limitations of conventional DC disconnectors in terms of size, power consumption, temperature rise and service life have become increasingly prominent, making them inadequate to fully meet the application requirements of the new-generation DC power distribution systems. With decades of deep cultivation in the low-voltage electrical industry, Huanyu Electric accurately identifies industry pain points and launches the HUW9NEGZ-4000 2P DC disconnector. Backed by solid technical expertise and dependable product performance, it delivers safe and reliable breaking and isolation solutions for DC power distribution systems.
Targeting High-Current DC Scenarios
The HUW9NEGZ-4000 2P DC disconnector focuses on the core demands of high-current DC scenarios and delivers outstanding performance in key parameters including voltage, current, short-time withstand and making capacity:
Addressing Industry Application Pain Points
Integrated compact design, saving approximately 40% of installation space. Integrated compact design Adopting an integrated compact 2P design, it features overall dimensions of only 298×372×406 mm. Its volume is reduced by approximately 40% compared with conventional 4-pole DC disconnectors, effectively saving cabinet installation space and lowering the overall project construction cost. Low power consumption design, cutting energy loss by ~50%. Compared with the traditional multi-break series structure, this product has fewer main circuit contacts, reducing its own power consumption by approximately 50%. It effectively alleviates the problems of high temperature rise and large energy consumption of traditional products, aligning with the national “Dual Carbon” strategy. High Short-Time Withstand Capacity to Cope with Short-Circuit Shocks Steadily Strong short-term endurance Its rated short-time withstand current reaches 100kA/1s and 160kA/0.2s, with a rated short-circuit making capacity of 100kA. It can steadily withstand high short-circuit current surges, reducing risks of contact welding and structural failure to build a solid safeguard for system safety. Long Electrical and Mechanical Service Life, Reducing Full-Lifecycle O&M Costs Long electrical and mechanical lifespan Electrical life: At DC1500V, 1500 operations for DC-PV2 category and 500 operations for DC-23A category; Mechanical life: 15,000 operations under maintenance-free conditions and up to 25,000 operations with maintenance. Long service life effectively reduces the frequency of equipment replacement and maintenance, cutting full-lifecycle O&M costs. Wide Temperature Adaptability, Reliable in Harsh Environments Wide temperature range compatibility Operating temperature range: -40℃ ~ +70℃. Temperature rise ＜50K at a base temperature of 50℃. It operates stably and reliably for PV power stations in cold northern regions and energy storage stations in hot southern areas. Eco-friendly with Full Compliance The product complies with RoHS 2.0 environmental standards and adopts lead-free and cadmium-free materials, meeting domestic and international green manufacturing requirements and helping customers build green and low-carbon projects.
Comprehensive Product Portfolio Covering Diverse Application Scenarios
The product is widely applicable to centralized and distributed PV power stations, commercial & industrial energy storage, residential energy storage, DC charging piles, flexible power grids, data center DC power distribution and other fields.
Against the trend that DC power distribution keeps evolving toward high voltage, high current and high reliability, the HUW9NEGZ-4000 2P DC disconnector features robust specifications including DC1500V, 800A~4000A, short-time withstand capacity of 100kA/1s and 160kA/0.2s. Combined with integrated advantages of compact size, low power consumption, long service life, wide temperature adaptability and environmental friendliness, it delivers stable and reliable power distribution support for diverse DC scenarios. Contact Huanyu Electric for more product information and selection support.
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