UPG111-35991-15 Circuit Protection

Circuit breakers are essential components for electrical power systems. For industrial applications, UPG111-35991-15 is a reliable and competent choice. It has a wide application field and a working principle that allows it to fulfill even the most complex tasks. This article will provide an overview of both aspects.

UPG111-35991-15 is a low voltage circuit breaker (LVCB) featuring energy limiting, overload, short circuit, earth fault, and manual reset operation. Its mainly used for data centers, photovoltaic plants, industrial automation, railroads, and communication systems. It has a short-circuit breaking capacity of 7500A and a peak current at 36kA. It can also work in areas with temperatures ranging from -25 to 70 degrees centigrade, atmospheric pressure between 132-1060mbar, and relative humidity of up to 95%.

As for its working principle, the UPG111-35991-15 has a thermal-magnetic trip unit. This means that it operates in three stages: melting, short delay, and long delay. When the current in the circuit exceeds the maximum allowed, the breaker enters the melting stage and quickly trips the circuit with no more warning than a brief light that signals it has tripped. This ensures that the circuit isn’t damaged and that it is safe for operation. After the breaker has been reset, it will enter the short delay stage. This is a timed delay, which is set to the user’s requirements. The long delay stage is used to protect the circuit from arcing or if the circuit is frequently starting up. The current is monitored continuously and any trip can be reset.

The design of UPG111-35991-15 circuit breaker allows for it to be used in many different applications. It has a high breaking capacity, a wide temperature range, and a reliable working principle. This makes it a great choice for any electrical power system.

In conclusion, UPG111-35991-15 is a reliable and competent low voltage circuit breaker that is suitable for many applications. It has a high breaking capacity, a wide temperature range, and a reliable working principle. It can be used for various industrial automation, photovoltaic plants, railroads, and communication systems. The thermal-magnetic trip unit ensures that the circuit is quickly and safely tripped when the maximum current is exceeded. Thus, UPG111-35991-15 is a great choice for any electrical power system.