Type: Low Voltage Cable Distribution Box
Model: DFW
Params: Model：DFW
Product Type：Outdoor Type
Rated Operational Voltage (Ue)：400V / 380V
Rated Insulation Voltage (Ui)：690V
Rated Frequency (fn)：50Hz
Rated Impulse Withstand Voltage (Uimp)：6kV
Overvoltage Category：Category III
Material Group：Group IIIa
Pollution Degree：Degree 3
Electrical Clearance：≥10mm
Creepage Distance：≥12.5mm
Rated Current of Complete Set (InA)：630A
Rated Current of Main Busbar (InA)：100A ~ 630A
Rated Short-Time Withstand Current of Main Busbar (Icw)：15kA ≤ Icw ≤ 20kA
Rated Peak Withstand Current of Main Busbar：40kA
Type, Model & Frame Rated Current of Main Switch (Inm)：Disconnector NH40-1000/3, 1000A
Rated Current of Main Switch：1000A
Number of Outgoing Circuits：3 Circuits
Rated Current (Inc) & Rated Limited Short-Circuit Current (Icc) of Outgoing Circuits：C1 Circuit: 180A, 20kA；C2~C3 Circuits: 225A, 20kA
Rated Current, Icu & Ics of Protection Devices for Outgoing Circuits：C1 Circuit: 200A, 50kA, 25kA；C2~C3 Circuits: 250A, 50kA, 25kA
Enclosure Protection Degree (IP Rating)：IP54 / IP44 / IP34D
Rated Diversity Factor (RDF)：1
Insulation Material & Heat Resistance Grade：DMC, Class E
Material: Cabinet enclosure (3 optional mainstream materials):
SMC unsaturated polyester glass fiber composite (anti-corrosion & insulating type for outdoor use); 304 stainless steel plate (for heavily corrosive outdoor environments); cold-rolled steel sheet / galvalume steel sheet with electrostatic plastic spraying (standard indoor & outdoor type).
Internal mounting brackets and busbar supports: Galvanized steel sheet or stainless steel sheet.
Conductive busbars and wiring terminals: T2 pure copper with tin plating on contact surfaces.
Insulating supports, partitions and cable separators: SMC composite material and epoxy insulation board.
Cable entry sleeves and sealing parts: Rubber and silicone rubber sealing gaskets.
Cabinet locks and fasteners: 304 stainless steel locks, stainless steel bolts, flat washers and spring washers.
Shell of internal switch components: Flame-retardant engineering plastic.
Applicable Industry: This product is widely used in substations, distribution stations, industrial and mining enterprises, roadside power distribution systems, residential communities, high-rise buildings, airports, and major infrastructure projects. It serves as a standardized complete set of equipment for distributing electrical power from the main cable line to other users or electrical equipment within three-phase low-voltage power distribution systems.
