Overview

This series of low-voltage drawout switchgear cabinets is suitable for use in power plants, substations, petrochemical industries, metalurgy andsteel roling, transportation and energy, light industry and textiles, as well as residential communities and high-rise buildings. lt is designed forpower conversion, distribution, and control in AC power sytems with a freguency of 50-60 Hz and a rated operating voltage of 660 V or below. Thisequipment complies with national professional standards such as GB7251.1 “Low-Voltage Switchgear Assemblies” and JB/T9961 “Low-VoltageDraw-Qut Switchgear Assemblies,” as well as international professional standards such as lEC439-1 and VDE0660 Part 5.

Model Meaning

MNS Low-voltage withdrawable switchgear Model

Terms of Use

▪ Ambient air temperature does not exceed +40’c and does not fall below -5’c, and the average temperature over a 24-hour period does not exceed+35℃;

▪ Atmospheric conditions: Clean air, relative humidity does not exceed 50% at a maximum temperature of +40’c . Higher relative humidity is permitedat lower temperatures, e.g, 90% at +20’c , but temperature changes must be considered, as condensation may occasionally occur;

▪ Altitude does not exceed 2000 meters;

▪ This device is suitable for transportation and storage processes within the temperature range of -25’c to +55’c . it can withstand temperatures upto +70’c for short periods (not exceeding 24 hours,. Under these extreme temperatures, the device should not suffer any ireversible damage andshould function normally under normal conditions;

▪ If the above operating conditions cannot be met, the user and manufacturer should negotiate a solution;

▪ When this device is used on offshore oil driling platforms or nuclear power plants, a separate technical agreement must be signed.

Main Technical Parameters