UPL111-2026-3 Circuit Protection

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Circuit breakers are an essential device for any home or commercial electrical system. In the past, circuit breakers were mechanical devices that manually switched off power to an electric circuit to protect it from an overload. Modern circuit breakers are electronic devices that can detect an overload on an electrical circuit and automatically shut off the power to that circuit. UPL111-2026-3 is one such circuit breaker that is widely used in home and small industrial applications. To fully understand how it works, it’s important to look at its application field and working principle.

The UPL111-2026-3 circuit breaker is commonly used in low-voltage applications such as residential (120/240V) and commercial (208/416V) power distribution systems. The breaker is designed to provide protection against short-circuit, ground faults, and overload in both interior and exterior applications. Due to its small size, the breaker is ideal for installations in devices such as generators, breaker panels, air conditioners, and water heaters. Additionally, the breaker is designed to provide an emergency power shutoff if necessary, which makes it an ideal choice for applications where safety is a concern.

The UPL111-2026-3 circuit breaker is a thermal-magnetic breaker, meaning that it features two separate components that provide protection against an overload: a thermal element and a magnetic element. The thermal element is a bimetallic strip that heats up when the current flow is greater than the rated current of the breaker. As the strip heats up, it deflects and causes the breaker to trip, shutting off power to the circuit to prevent an overload or short-circuit. The magnetic element works in a similar way, but with a quicker response time. It uses an electromagnetic coil that works in conjunction with a movable armature. When the current flow exceeds the rated current of the breaker, the electromagnetic coil produces a strong enough magnetic field to move the armature, which then trips the breaker, shutting off the power to the circuit.

The UPL111-2026-3 circuit breaker is a highly reliable device that ensures an effective level of protection for home and small industrial applications. It is UL and CSA certified, making it suitable for interior and exterior use. Additionally, the breaker is designed to meet the requirements of the National Electrical Code, making it an ideal choice for any electrical system.

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