Product Overview

The MNS low-voltage withdrawable switchgear is an assembly of modular components designed for use in power plants, substations, petrochemical facilities, metallurgical and steel-rolling enterprises, as well as residential complexes and high-rise buildings. It is suitable for AC 50–60Hz low-voltage power distribution systems with rated operating voltages up to 660V, facilitating power conversion, distribution, and control for applications such as power supply, distribution, motor control centers (MCC), and capacitor compensation. Designed to meet market demands for increased capacity, intelligent control, and easy maintenance, the product complies with the GB/T7251.12-2013 national standard.

Performance Features

①　Sophisticated and Efficient Design: Compact structure accommodating multiple functional units within a small footprint; utilizes C-shaped profiles based on a 25mm module, offering high versatility and adaptability to various structural configurations and environments.

②　Flexible Modular Assembly: Standardized modular design allows for the free combination of over 200 types of parts into functional units—such as protection and control modules—to meet diverse power application needs.

③　Superior Safety Performance: Extensive use of high-strength, flame-retardant engineering plastic components ensures excellent leakage protection; compartment isolation combined with multiple insulating barriers effectively mitigates risks associated with arc short-circuits and electrical leakage.

④　Leading Technical Parameters: High making and breaking capacities and excellent dynamic and thermal stability; key technical parameters reach advanced international levels; supports dual main busbar configurations for flexible and reliable power supply.

Technical Parameters

Operating Conditions

①　Temperature: Ambient air temperature between -30°C and 40°C; average temperature over a 24-hour period not exceeding 35°C.

②　Humidity: Relative humidity not exceeding 50% at 40°C; higher humidity is permissible at lower temperatures, provided that the effects of condensation are taken into account.

③　Geographical Conditions: Altitude not exceeding 2,000 m; seismic intensity not exceeding Grade 8.

④　Environmental Requirements: Must be installed in a location free from fire or explosion hazards, severe pollution, chemical corrosion, and intense vibration.