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Air Circuit Breaker
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Molded Case Circuit Breaker
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Miniature Circuit Breaker
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Surge Protector
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Air Circuit Breaker
LDW9 High Voltage Air Circuit Breaker (ACB), also known as an intelligent universal circuit breaker or frame circuit breaker, is designed for power distribution networks operating at an AC 50Hz, with a rated working voltage 800V~1140V and a rated working current of 7500A.

This ACB is utilized for the distribution of electrical energy and serves to protect cables and power equipment from various faults, including overload, under-v···
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Air Circuit Breaker
Molded Case Circuit Breaker
LDM9 CM3 Plastic Molded Case Circuit Breaker (MCCB) is one of the new circuit breakers developed by our company using internationally advanced design and manufacturing technology.

Its rated insulation voltage is 800V, suitable for AC 50Hz, with a maximum rated working voltage of 690V (LDM9-63 is 400V), and a rated working current of up to···
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Molded Case Circuit Breaker
Miniature Circuit Breaker
The LDB8-125 (AC) Auto Recloser Circuit Breaker series is compatible with AC 50Hz or 60Hz, rated voltage of 230-400V, and rated current of up to 125A.

This product is designed to be controlled by the signal of an energy meter or a remote signal, allowing for intelligent opening and closing of the circuit. Addi···
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Miniature Circuit Breaker
Surge Protector
The LD-MD T1 Class Surge protector Device (SPD) series have several key features, including a large discharge energy, no leakage current, no follow-up current, modular installation, high safety factor, long service life, strong environmental resistance, and a voltage protection level of less than 2500V. This SPD is designed in accordance with both IEC and GB standards. It is specifically used for the first-level surge protection of the power supply systems and easily installed on a standard 35mm rail.

It has a high lightning current discharge capacity, with a maximum impact current of a single module can reach 50kA (10/350μs). This makes it highly effective ···
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Surge Protector
Electricity Solutions
Power grids Electric vehicles Electrified transportation Solar system Commercial buildings Home Smart Grid
About us
Over 20 years of industry experience
LEIDUN are an electrical enterprise integrating R&D, production and trade. All kinds of products have achieved significant advancements in both design and technical performance. Market sales data confirm that our products effectively meet customer needs and project requirements, earning approval and positive feedback from clients.
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