LELH11-39126-15-V

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Circuit breakers are vital components of virtually any electrical system. They are designed to protect the system from system faults that can be dangerous or catastrophic. The LELH11-39126-15-V is a popular circuit breaker designed to provide overcurrent and short-circuit protection for branch circuits.

Application Field

The LELH11-39126-15-V is primarily used in residential and light commercial applications to provide protection for lighting, heating, and air conditioning systems, as well as for other smaller loads. It is UL approved for its ability to interrupt a wide range of currents safely and efficiently.

Working Principle

The LELH11-39126-15-V is a electrically-operated thermal-magnetic circuit breaker, which means it combines both thermal and magnetic technologies to provide circuit protection. The thermal aspect works by heating a bimetallic strip when too much current flows through the circuit. When this happens, the strip forces a switch to open, which breaks the circuit.

The magnetic part of the breaker works by using a solenoid. When the current gets too high, a magnetic field produced by the solenoid forces a spring-loaded arm into the circuit, breaking the connection.

The combination of thermal and magnetic technologies ensures the LELH11-39126-15-V can respond quickly and reliably to an overcurrent or short-circuit, while also allowing the breaker to handle higher current applications. It also helps prevent nuisance trips (tripping due to transient electrical overloads that are harmless to the system).

Regulatory Standards

The LELH11-39126-15-V meets both UL and CSA regulations, which are designed to ensure the safety and performance of installed circuit breakers. UL tests for a variety of safety standards, including Temperature Rise Limit, Short-Time Overload Ratings, Internal Arcing Test, and Mechanical Endurance Test. CSA also evaluates safety standards, such as Temperature Rise Limit, Short-Time Overload, and Internal Arcing.

Advantages

The LELH11-39126-15-V offers several advantages over other circuit breakers. It is smaller than other breakers of its type, allowing it to fit in smaller spaces and locations that would not be possible with other breakers. Additionally, it has dual-action trip protection, meaning it can handle both overcurrent and short-circuit protection safely.

The LELH11-39126-15-V also has a high degree of contact reliability, which ensures a safe and efficient operating system. The breaker is designed to last long time with minimal maintenance. It also has a wide operating temperature range, making it suitable for use in a variety of environments.

Conclusion

The LELH11-39126-15-V is a circuit breaker designed for residential and light commercial applications. It is a thermally operated magnetic circuit breaker that offers a wide range of current interruption with dual-action trip protection. Additionally, the breaker is UL and CSA approved, and is designed for reliable operation and minimal maintenance.

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