1C03DL

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The 1C03DL circuit breaker is a sophisticated electrical safety device used to interrupt unwanted or excessive currents in an electrical circuit. It achieves this by the controlled opening and closing of electrical contacts in response to a specified level of current or voltage. In most cases, it is used in residential and commercial applications to protect against damage due to overload, short circuit, and/or fire.

The 1C03DL is a three-pole circuit breaker of the C3 class, with a rated service voltage of 690 VAC and a rated service current of 220 A per pole. It functions as a three-way switch which can open or close all three poles. The poles are arranged in close proximity, allowing the device to provide full three-pole protection. The 1C03DL has a rated short-circuit capacity of 10,000 A (ICU), and a rated ultimate short-circuit capacity of 55kA (Icu).

The 1C03DL is designed for use in both residential and commercial applications, and its versatility makes it a popular choice for many applications. In residential applications, it is typically used for the protection of circuits feeding electrical devices, such as appliances, electronics, and electric motors. In commercial applications, it is typically used for the protection of circuits in high-rise buildings, factories, warehouses, and other industrial sites. It can also be used in applications requiring line isolation, phase balancing, and surge protection.

The working principle of the 1C03DL circuit breaker is based on the arc suppression principle. It features a unique design that consists of two distinct sides: the main and the auxiliary. On the main side, the 3-pole switch is mounted in the grill. When a fault (or overload) is detected, a high-speed trip system causes the main side of the breaker to open and then reconnect, causing the electric arc between the contacts to be quickly extinguished. On the auxiliary side, a surge arrester is mounted in the grill, which acts to further suppress any remaining arcing voltage. In the event of a sustained overload, a thermal element is triggered which will cause the breaker to open and remain open until the overload has subsided.

The 1C03DL circuit breaker is an ideal solution for many residential and commercial applications. It provides reliable protection against overloads and short-circuits, and its unique design allows it to provide full three-pole protection. Its versatility makes it a popular choice among electricians and contractors, and its easy installation and operation make it an affordable option for many applications.

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