LANSON
Glass Tube Fuse Detailed Explanation
As a leading enterprise in the field of circuit protection in China, LANSON's glass tube fuses are indispensable overcurrent protection components in electronic and electrical equipment. These fuses have gained a good reputation in the market for their reliable performance, diverse specifications, and wide range of applications.
Basic structure and working principle of the product
The core structure of Liangsheng glass tube fuse consists of three parts: a transparent glass tube shell, an internal metal fuse (usually made of lead or zinc alloy), and metal end caps at both ends. This design not only provides good insulation and mechanical support, but also allows users to directly observe the status of the internal fuse, making it easy to quickly determine whether it has blown.
Its working principle is based on the thermal effect of electric current. When the circuit is working normally, the fuse is only equivalent to a wire, which can stably conduct the circuit. Once an overload or short circuit fault occurs in the circuit, a sudden increase in current will cause the metal fuse to heat up and quickly melt, thereby cutting off the circuit and protecting subsequent electronic devices from damage. This action can be completed within milliseconds, effectively preventing equipment from burning out or even fire accidents.
Main product types and characteristics
Liangsheng glass tube fuses are mainly divided into two types: fast break type and slow break type (also known as delay type), to meet the protection needs of different circuits.
Quick break fuses can quickly act in the event of a short circuit or other electrical malfunction, immediately cutting off the circuit and effectively protecting it from long-term overcurrent damage. This type of fuse is particularly suitable for applications that require high circuit protection, such as data centers, telecommunications base stations, power grid facilities, and other precision electronic equipment.
Slow breaking fuses are designed to withstand brief transient overcurrent (such as surge current during equipment startup), and will only melt after the overcurrent state has persisted for a period of time. This characteristic makes it very suitable for applications with surge currents such as motors, transformers, power adapters, etc.
The common size of Liangsheng glass tube fuse is Φ 5.2 × 20mm, with a wide range of current coverage from 200mA to 16A, and a rated voltage of generally 250V.
Technical specifications and certification standards
The technical parameters of Liangsheng glass tube fuses include rated current, rated voltage, melting heat energy value (I ² T), and breaking capacity. For example, its breaking capacity can reach up to 35A. These parameters are crucial for ensuring that the fuse works properly under specific conditions.
