When overloaded, the double metal will bend and deform when heated. When the bending degree reaches a certain value, the mechanical latch will be pushed to release the operating mechanism, causing the circuit breaker contacts to separate and cut off the circuit to achieve overload protection.
When there is a short circuit, the current will increase sharply in an instant, creating a strong magnetic field. The trip coil generates electromagnetic attraction, causing the iron core and other components to undergo electromechanical displacement and hit the trip rod, causing the locking mechanism to release i
Product Quality:
The dynamic and static contacts are made of copper and silver alloy, which have the advantages of high temperature resistance, oxidation resistance, and good conductivity
The copper bars for incoming and outgoing lines are made of thick standard purple copper material
The insulation system is made of flame-retardant and high-temperature resistant materials, the coil material is copper, the contacts are made of silver alloy material, and the contacts are made of silver plated purple copper.
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Management Quality:
Raw material storage inspection, check whether the double gold is intact, whether there is virtual welding in the double gold, whether there is virtual welding in the soft connection, and whether the coil is detached
Semi finished product inspection, including self inspection, mutual inspection, and sampling (with a long delay), to check whether the assembly is in place, whether there are defects, to check for over travel distance, and to perform functional testing
Functional test: Short circuit overload test
Finished product inspection: mechanical characteristic testing, mechanical testing, power on testing, inspection of appearance for defects and completeness
Instantaneous detection, delay detection, mechanical characteristic testing, power on testing, semi-finished product testing
To ensure transportation safety, our electrical products are exported in reinforced wooden crates. The crates undergo heat treatment and bear the ISPM-15 mark, enabling swift customs clearance. The raised base design facilitates forklift operation, while internal shock-absorbing fastening ensures the products arrive intact. All exterior crates are clearly labeled and comply with international logistics standards.

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