ABOUT LAZZEN
In the field of low-voltage electrical components, LAZZEN)offers a comprehensive range of products including circuit breakers (such as miniature circuit breakers, molded case circuit breakers, and air circuit breakers), contactors (including DC contactors), and disconnectors. Brands like Nader, under the Liangxin umbrella, provide specialized products such as Nader MCCB (molded case circuit breakers), Nader MCB (miniature circuit breakers), and Nader ACB (air circuit breakers). These products are designed to meet diverse electrical system requirements and are used in various applications from power generation to end-use. Liangxin, as a leading brand in the industry, is committed to providing safe, reliable, and energy-efficient solutions for global customers.
◆ Various controllers are optional:
M or NWK21 — Conventional function, digital tube display, practical function and simplicity, which can adapt to the low-temperature places with the optional voltage measurement function;
3M or NWK22 — Conventional function, LCD display, multiple and diversified functions, with optional voltage and harmonics measurement and protection functions. ;
Applicable to high-end application places, and more powerful if applied to intelligent system
◆ Measurement and protection: With current, voltage, frequency, phase sequence, power, power factor and harmonics measurement and protection functions;
◆ Current protection features:A variety of overload long-time delay protection, a variety of short circuit short-time delay protection, short circuit transient protection,
ground protection, neutral line N-pole protection, current unbalance protection, MCR circuit breaker making capacity protection;
◆ Maintenance function:With fault record (8 times), historical current peak record,
contact wear equivalent, query of operation times, clock function, self-diagnostic function, test function and fault display function;
◆ With a remote reset device, realize remote recovery after fault tripping of the controller.
NDW2 series of universal circuit breaker has obtained China Compulsory Certification (CCC) for products.









