MNS
Product Features
- Product Description
- Performance characteristics
- Technical parameters
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- Commodity name: MNS
MNS low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is composed of standardized and integrated modular components, and the drawers have reliable mechanical interlocks, making it safer and more reliable for users.
Product Overview
MNS low-voltage withdrawable switchgear (hereinafter referred to as switchgear) is composed of standardized and integrated modular components, and the drawers have reliable mechanical interlocks, making it safer and more reliable for users.
This switchgear is suitable for AC 50 (60Hz, rated operating voltage 400V, 660V, rated current 5000A and below three-phase five-wire power supply systems. It can be used in power plants, substations, industrial and mining enterprises, buildings, hotels, airports, docks, and communication centers such as broadcasting and television as control for power generation, transmission and distribution, power conversion, and power consumption equipment, and performs reactive power compensation on its main busbars through capacitor compensation cabinets.
Compliant with national standards: GB7251.1 "Low-voltage switchgear and controlgear assembly" and IEC60439 "Low-voltage switchgear and controlgear assembly".
Conditions of Use
Ambient air temperature not higher than +40℃, not lower than -5℃, and the average temperature within 24h not higher than +35℃;
Atmospheric conditions: Clean air, relative humidity not exceeding 50% at the highest temperature of +40℃, higher relative humidity is allowed at lower temperatures, e.g., 90% at +20℃, but the temperature change should be considered, and condensation may occur occasionally;
Altitude not exceeding 2000m, please specify when ordering;
This device is suitable for transportation and storage processes within the temperature range of -25℃ to +55℃. It can reach +70℃ for a short period (no more than 24h). The device should not suffer any irreversible damage at these extreme temperatures, and should function normally under normal conditions;
If the above conditions of use cannot be met, it should be resolved through consultation between the user and the manufacturer.
Note: When this device is used in offshore oil drilling platforms and nuclear power plants, a separate technical agreement should be signed.
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Serial Number Item
GB7251.1 Low-voltage switchgear and controlgear assemblies (TTA)
IEC60439 Low-voltage switchgear and controlgear assemblies
1 Overvoltage Category IV, Ⅲ 2 Pollution Degree IV 3 Rated operating voltage (Ue)(V) 400/660 4 Rated insulation voltage (Ui)(V) 660/1000 5 Rated frequency (Hz) 50(60) 6 Horizontal busbar Rated current ≤5000A Rated short-time withstand current (lcw)(kA) 50,65,80(1s effective value) Rated peak withstand current (Ipk)(kA) 105,140-176(0.1s maximum value) 7 Vertical busbar Rated maximum operating current ≤1000A Rated short-time withstand current 50kA Rated peak withstand current 105kA 8 Protection Level IP30/IP40(Special Note)
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