Standards Conformance
IEC 60439-1, BSEN 60439-1 AS 3439.1
IEC 60529, IEC 61641, IEC-61439 : 2009
Rates insulation voltage
Rates operation voltage
Rated impulse withstand voltage
Rated current
Ui 1000V AC
Ue 690V AC, 50Hz
Uimp 6kV
Ie 600A – 6000A
Rated short circuit withstand
* Main busbars
* Distribution busbars
Icw 80kA rms for 3 s
Ipk 176 kA
Icw 80kA 1s
Ipk 176kA
Arcing withstand-fault test
Ambient air temperature
Ingress protection provided by the enclosure
Forms of internal separation
Enclosure material
415V at 65 kA, pf=0.20
up to 50 degree celsius
IP20……IP43
1, 2a, 2b, 3a, 3b, 4a, 4b
Mild steel, electro-galvanized, stainless steel & galvanized iron
Standard colour finishing
Polyster powder paint ( wrinkle texture)
(Fair Grey) (interior & exterior)
thickness – 40 to 150 microns
Metal sheet thickness
1.2mm for distribution board
1.5mm for sub-switchboard
1.5 – 1.8mm for feeder pillars
1.8mm for doors / covers of floor-standing board
2.3mm for structural frame of floor-standing bd
Floor-Standing Board dimensions
* heights
* depths
* widths
1925, 2225, 2525 mm
650, 850, 1050, 1200 mm
400, 450, 500, 550, 600, 650, 750, 800, 850, etc
Busbar system
* Material
* Surface treatment
* Support material
Oxygen-free high conductivity
Tin-plated or PVC heat-shrinked sleeved
Fibreglass reinforced polyester