LV Main Switchboard (MSB)
Low Voltage Main Switchboard From Powerwell
Standards and Testing |
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Standards | Low-Voltage switchgear and control assemblies | IEC 61439-1 |
Part 1 : General rules |
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Low-Voltage switchgear and control assemblies | IEC 61439-2 | |
Part 2 : Powe switchgear and controlgear assemblies |
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Enclosed low-voltage switchgear and controlgear assmblies | IEC/TR61641 | |
Guide for testing under condition of arcing due to internal fault |
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Test Certificate | ASTA certificates of Verification Tests to IEC 61439-2 issued by intertek (UK) |
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ASTA certificates of internal Fault Tests to IEC/TR 61641 issued by intertek (UK) |
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kA Testing Facility (UK) certificates of Verification Tests to IEC 61439-2 |
Electrical Data |
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Rated Voltages | Rated insulation voltage UI | Up to 1000V 3~ |
Rated operating voltage Ue | 415V 3~ |
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Rated impulse withstand voltage Uimp | 8kV |
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Degree of pollution | 3 |
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Rated frequency | Up to 60Hz |
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Rated Currents | Main Horizontal Busbars : | Main Horizontal Busbars : |
Rated current Ie | Up to 6000 A |
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Rated peak withstand current Ipk | Up to 220 kA |
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Rated short-time withstand current Ic | Up to 110 kA |
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Rated Device Current | Conditional short-circuit current (Icc) | Up to 70 kA |
Mechanical Characteristics |
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Dimensions | Height | 2200 mm |
Width | 250, 350, 550, 750, 1000, 1200 mm |
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Depth | 1000, 1275 mm |
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Sheet Metal (Mild Steel / Galvanized) | Frame | 2.3 mm |
Door and entry plate | 2.0 mm |
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Thickness | Internal partition | 1.5 mm |
Surface Treatment | Enclosure | Powder coated RAL 7035, light-grey |
IP Degrees of Protection | Internal Separation : 4b | External Enclosure : IP 43 |
Options |
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Paint Finish | Enclosure | Special colors (Standard RAL 7035) |
Busbar System | Busbars | Insulated or tin galvanized |