JTMP-2-1RLS4-37877-400

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Circuit breakers are electric switch devices that act as a protective measure to ensure the safe and reliable operation of an electric circuit. The JTMP-2-1RLS4-37877-400 occurs in various models including an ultra-sensitive version for line fault protection, self-adjusting overspeed protection, and overload protection. This article will discuss the application field and working principle of the JTMP-2-1RLS4-37877-400 circuit breaker.

Application Field

The JTMP-2-1RLS4-37877-400 circuit breakers are suitable for a wide variety of applications, including but not limited to: on-site installation in mining and gas distribution networks, use in electricity and water substations, urban, industrial, and rural electro-mechanical networks, floating networks, and marine and offshore wind turbines.

Additionally, the circuit breaker can be used with switching appliances such as contactors, isolators, relays, and switch disconnectors. It is also suitable for equipment such as load control relays, current transformers, earthing switches, wave format protection devices, and motors.

Working Principle

The JTMP-2-1RLS4-37877-400 circuit breaker operates on a three-phase network. The internal structure of the device includes three different bimetallic protection mechanisms, which will be triggered under different conditions. These mechanisms include a thermal protection system for current overload protection, a current protection system for phase unbalance protection, and a voltage protection system for short-circuit protection.

The thermal protection system works through the combination of two bimetallic strips and contacts, which create a thermal connection to the power source. The bimetallic strips heat up when the current load exceeds the designed level, which then results in the contacts being opened and the circuit breaker automatically disconnecting.

The current protection system works in a similar way, with the current unbalance triggering a magnetic connection and opening the contacts when the load exceeds the rated current. Finally, the voltage protection system works by detecting abrupt voltage increases in the circuit. When this happens, the contacts open and are then safe to reset.

In summary, the JTMP-2-1RLS4-37877-400 circuit breaker is a safe and reliable device that is suitable for a wide range of applications, from mining and gas distribution networks to urban, industrial, and rural electro-mechanical networks. It works on a three-phase network and has three different protection mechanisms for overload protection, phase unbalance protection, and short-circuit protection.

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