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Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
Naile Electric Co., Ltd. was jointly established by a group of electrical professionals with years of experience in technology development and management. It owns modern industrial plants and office spaces. As a modern technology-based enterprise, it specializes in the production and operation of lo
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NLW1DC-1600
CHNAILE
Product Overview
Extinguishing an alternating current arc relies on natural zero-crossing points; extinguishing a 1500V Direct Current (DC) arc at 1600 Amps requires sheer, unadulterated engineering force. The CHNAILE Ultra-High Capacity DC Air Circuit Breaker (ACB) is purpose-built to conquer the most terrifying DC short circuits in modern renewable mega-projects. Positioned at the very top of the DC electrical pyramid, this universal circuit breaker handles continuous multi-megawatt payloads. Utilizing massive mechanical kinetic energy and expansive open-air arc chambers, it safely neutralizes faults that would vaporize standard switchgear. It is the uncompromising main tie-breaker mandated for grid-scale lithium-ion battery containers and commercial green hydrogen electrolysis plants.
Technical Parameters
| Device Category: | Direct Current Air Circuit Breaker (DC ACB) |
| Frame Current (Inm): | 1600A (Engineered for massive DC battery banks) |
| Rated Operating Voltage (Ue): | DC 1000V / 1500V (Optimized for modern solar/BESS architecture) |
| Rated Insulation Voltage (Ui): | 1500V (Apex-tier dielectric firewall) |
| Operating Mechanism: | Motorized / Manual Spring Energy Storage |
| Arc Quenching Method: | Open-Air De-ion Grid Extinction |
| Control Voltage (Shunt/Closing): | AC 230V (Auxiliary integration) |
| Standard Compliance: | GB/T 14048.2 / IEC 60947-2 |

1. Extreme 1500V DC Arc Eradication
Violent Plasma Fragmentation: Unlike AC breakers, this DC ACB features specialized, elongated arc chutes with permanent magnetic blow-out systems. When a massive DC short circuit occurs, the magnetic field aggressively stretches the unrelenting DC plasma, forcing it into metallic grids where it is instantly cooled, fragmented, and safely exhausted out of the chassis.
1600A Continuous DC Endurance: Large battery storage racks discharge relentless, flat-line continuous currents. The gigantic internal silver-plated copper bus connections are explicitly designed to carry 1600 Amps 24/7, exhibiting near-zero thermal rise and eliminating the risk of contact welding during high-load battery discharging.
Spring-Charged Kinetic Actuation: Closing a 1600A DC contact slowly would cause instant fusion. This ACB utilizes a heavy-duty spring energy storage system (charged manually via the front handle or via an internal electric motor). Pressing the prominent 'ON' button unleashes this kinetic energy, slamming the contacts closed with explosive speed.

2. Megawatt-Scale Structural Engineering
1500V Dielectric Fortress: The internal chassis is molded from specialized anti-tracking polymers. The extraordinary 1500V insulation rating ensures complete dielectric separation between massive DC+ and DC- busbars, preventing catastrophic cross-arcing in dense, high-voltage battery storage containers.
Comprehensive Auxiliary Integration: The top-mounted secondary wiring terminal block allows for seamless integration into centralized SCADA and Energy Management Systems (EMS), enabling remote motorized ON/OFF switching, status monitoring, and instantaneous shunt tripping during facility emergencies.
Fail-Safe Mechanical Interlocks: Features clear, color-coded manual override buttons (Green ON / Red OFF) and dedicated mechanical indicators showing the exact status of the main contacts and the energy storage spring, ensuring absolute lock-out/tag-out (LOTO) safety for technicians.

3. Target Application Scenarios
Due to its colossal 1600A DC capacity and 1500V architecture, this DC ACB is exclusively sourced by top-tier renewable EPCs for:
Utility-Scale BESS (Battery Energy Storage Systems): Serving as the ultimate main battery tie-breaker inside megawatt-class containerized lithium-ion storage farms, protecting grid-tied inverters from battery short circuits.
Centralized Megawatt Solar Inverters: Acting as the primary high-voltage DC input isolation switch for massive commercial photovoltaic power stations.
Green Hydrogen Electrolysis: Safely managing the massive, continuous direct current flows required by industrial-scale water electrolyzers.
Heavy Rail Transit Substations: Providing heavy-duty, high-amperage DC isolation for municipal metro and tramway traction power networks.

4. Global B2B Partnership with CHNAILE Factory
Direct Supply of Mega-DC Switchgear: DC ACBs are highly capital-intensive investments. Sourcing these massive units directly from our manufacturing plant eliminates exorbitant international distributor markups, drastically optimizing your EPC project budgets.
Rigorous DC Factory Acceptance Testing (FAT): DC testing is exponentially more brutal than AC. Every single 1600A DC ACB undergoes exhaustive automated secondary injection testing and high-voltage DC simulated tripping to guarantee flawless IEC compliance prior to global export.
OEM Integration for BESS Builders: We actively partner with global battery container integrators, providing comprehensive technical racking support, customized motorized control voltages, and bespoke branding for your premium energy storage solutions.
Instruction Manual for Nailer W1 Series Air Circuit Breakers.pdf