IUGNF66-33485-50 Circuit Protection

Circuit breakers are vital components of any electrical system. The IUGNF66-33485-50 is a type of heavy-duty circuit breaker specifically designed for commercial and industrial applications. It features a trip-free, thermal-magnetic design and carries an exceptionally high interrupting capacity. In this article, we will discuss the IUGNF66-33485-50\'s application field and working principle.

The IUGNF66-33485-50 is rated for 600 volts and is suitable for applications involving one- or three-phase AC utility and generator power supplies. It has a continuous current rating of 43 Amps and an interrupting capacity of 25 kiloamps at 600 volts. As mentioned previously, it employs a thermal-magnetic design, which means the breaker is capable of tripping both quickly and accurately.

The IUGNF66-33485-50 is designed to protect against over-currents that may arise from unexpected surges in electricity supply. It has two distinct operating modes: the thermal mode and the magnetic mode. In the thermal mode, the breaker will trip as the current reaches its preset limit. This mode is used mainly for standard over-current protection.

The magnetic mode, on the other hand, utilizes internal magnetic fields to detect faults and other dangerous conditions. When the magnetic field generated by the current within the breaker exceeds the set threshold, an electromagnetic relay triggers an internal trip mechanism, causing the breaker to trip. This mode is used primarily for short-circuit protection, as it offers a faster response time than the thermal mode.

The IUGNF66-33485-50 also offers further protection in the form of its dead-front construction and reset lockout feature. Its dead-front construction prevents accidental contacts with live parts, while the reset lockout feature forces an electrician to open the breaker\'s compartment to manually reset it, further enhancing safety.

In conclusion, the IUGNF66-33485-50 is an advanced, heavy-duty circuit breaker designed for purposes of both over-current and short-circuit protection in commercial and industrial applications. It is rated for 600 volts and carries a continuous current rating of 43 Amps, with an interrupting capacity of 25 kiloamps at 600 volts. Its thermal-magnetic design allows the breaker to trip both quickly and accurately, while its dead-front construction and reset lockout feature improve safety.