2JS 3.5-R Circuit Protection

2JS 3.5-R Application Field and Working Principle

The 2JS 3.5-R is a fusible disconnect switch designed for both field and panel mounting. It offers reliable protection against fault current and over-current conditions in accordance with the LV 124 standard for the purpose of disconnecting the distribution system. Clinically engineered for maximum durability, the 2JS 3.5-R operates in a wide range of temperatures and is certified for use in both residential and industrial settings for up to 1250A applications.

At the heart of the 2JS 3.5-R is a thermal actuator, which is designed to sense the temperature of the contacts, energize the contacts, and then open them in the event of an overload or short circuit. This function allows the switch to immediately detect and disconnect dangerous levels of electricity, thereby protecting both the equipment and personnel. Additionally, the spring-assisted closing operation ensures a safe and reliable connection each time.

The 2JS 3.5-R is available in both single-pole and three-pole configurations with ratings up to 1250A. Its large contact area and increased mechanical endurance provide improved reliability and long service life for use in even the toughest applications. Additionally, it features thermal and undervoltage tripping mechanisms to protect against dangerous overloads and fluctuations in the current, while the easy-to-read digital display provides status information at a glance. Additionally, the 2JS 3.5-R is compatible with a range of accessories, such as overcurrent protection devices, to further increase safety and reliability.

To ensure maximum protection, the 2JS 3.5-R provides a high level of versatility through its adjustable disconnect settings. This allows users to tailor the disconnect limit to match the required protection level of the system in which the switch is installed. Additionally, the dual-pole switch can be configured in either a normally closed or normally open configuration to suit the unique requirements of the application.

The 2JS 3.5-R is an advanced fusible disconnect switch that offers maximum protection against fault current and overcurrent conditions. With its adjustable disconnect settings and multiple protection mechanisms, it provides reliable protection for all types of power systems. Additionally, its durable design ensures a long life and makes it an effective solution for high-power applications.