Using a 30 amp circuit breaker in place of a 20 amp circuit breaker creates a real danger in your home. You lose protection because the circuit breaker will not trip when the wiring gets overloaded. This can lead to fire, wire overheating, and even code violations. Many people think a working outlet
Image Source: pexelsAre you thinking your circuit breaker could be bad? Look for these signs:Cracks or broken spots on the breakerParts that look melted or too hotIt trips a lotYou hear buzzing or crackling noisesChecking these things helps keep your home safe. Do not try to fix electrical problems
You can check a circuit breaker with a multimeter. You can also do a manual reset. Look for any damage you can see. Always be careful when you work with your circuit breaker panel. It is important to stay safe. You should know the types of circuit breakers in your house.Single-Pole Breakers protect
Image Source: unsplashImagine waking up to the smell of smoke in your home. Every year, electrical faults spark about 51,000 house fires across the country. These fires cause hundreds of deaths and thousands of injuries. You rely on your circuit breaker to stop dangerous currents before they turn wi
High-Performance MCCB Solutions for Global Applications: Introducing the M3, M6, DC, and HU SeriesAs global industries demand higher standards for electrical safety, reliability, and customization, Molded Case Circuit Breakers (MCCBs) have become essential in modern power distribution systems. Our a
The ACB Air Circuit Breaker is a crucial component in modern electrical systems, especially in industrial power distribution. Its role in safeguarding electrical circuits from overloads and short circuits is indispensable. This article delves into the working principles, functions, and industrial ap
In the realm of industrial power distribution, the choice of circuit breakers plays a pivotal role in ensuring safety, reliability, and efficiency. Two of the most commonly used types of circuit breakers are the Air Circuit Breaker (ACB) and the Molded Case Circuit Breaker (MCCB). Each of these devi
In the modern landscape of commercial buildings, ensuring the safety and reliability of electrical systems is paramount. The integration of advanced technologies such as Air circuit breaker (ACB) systems has become increasingly essential. These systems are designed to protect electrical circuits fro
In the realm of electrical management within buildings, the choice of circuit breakers plays a pivotal role in ensuring safety, reliability, and efficiency. Among the various types of circuit breakers available, the Air Circuit Breaker (ACB) has gained significant attention due to its advanced featu
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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HD13
CHNAILE
The HD13 Knife Switch is a rugged, manual industrial isolation switch engineered to deliver safe and reliable power isolation for heavy-duty electrical systems. Designed specifically for switchgear, distribution cabinets, and industrial power networks, this heavy-duty disconnector prioritizes long-term durability and operational safety—making it a go-to choice for professionals seeking consistent performance in demanding environments. Crafted with high-quality materials and compliant with global industry standards, the HD13 balances robust functionality with user-friendly design, ensuring it meets the rigorous needs of industrial power control and isolation tasks.

At its core, the HD13 features high-conductivity copper blades that minimize electrical resistance, reducing heat generation during operation. Complemented by thickened silver-alloy contact points, these components ensure stable power transmission and prevent premature wear—critical for maintaining efficiency in high-demand industrial settings.
Safety is paramount, so the HD13 incorporates high-strength phenolic or epoxy insulation bases. These materials offer exceptional dielectric performance and mechanical rigidity, protecting against electrical leaks and withstanding harsh industrial conditions (e.g., dust, vibration). The insulation design also enhances operator safety during manual operation.
Unlike traditional manual manufacturing, the HD13 is produced via intelligent automated assembly lines. This process guarantees uniform quality across every unit, higher precision in component fitting, and a significantly lower defect rate—giving global distributors and end-users confidence in long-term reliability.
The HD13’s strengthened mechanical structure supports frequent operation without compromising performance. An integrated arc-resistant design further improves safety by mitigating arc flashes during switching, while the switch’s robust build ensures it withstands the wear and tear of industrial use for years.
As a core isolation component, the HD13 is widely integrated into low-voltage switchgear—providing a secure way to isolate power during maintenance or system adjustments.
In industrial distribution cabinets, the HD13 acts as a reliable barrier between power sources and connected equipment, preventing accidental energization during repairs.
For large-scale industrial machinery (e.g., manufacturing presses, metallurgical equipment), the HD13 manages power isolation, ensuring safe startup and shutdown of high-current systems.
Whether for new installations or retrofits, the HD13 is ideal for power isolation systems in sectors like mechanical engineering, chemical, and water conservancy—adapting to both routine and emergency isolation needs.
The HD13 offers flexible OEM/ODM customization to meet regional and application-specific requirements:
Dimension & Current Rating Adjustments: Tailor the switch’s size and current capacity to fit unique cabinet or system layouts.
Material & Contact Plating Options: Choose alternative materials (e.g., specialized alloys) or contact platings for enhanced corrosion resistance.
Branding & Packaging Personalization: Add custom company logos, labels, or packaging designs to align with brand identity.
Flexible Production Volumes: Support both small-batch prototypes and large-scale mass production for distributors and switchgear manufacturers.
No, the HD13 is designed exclusively for low-voltage systems. For high-voltage isolation, we recommend specialized high-voltage disconnectors to ensure compliance with safety standards.
The HD13 is optimized for indoor use (e.g., switchrooms, control panels). For outdoor applications, we can provide weatherproof modifications via OEM services to protect against rain, dust, and temperature fluctuations.
Thanks to its simple structure, the HD13 needs minimal maintenance—only periodic checks of copper blades and insulation bases to ensure no dust buildup or wear.
Yes, the HD13 meets IEC 60947-3 and GB/T 14048.3 standards, ensuring compatibility with global industrial electrical systems.