XLC-I Fireproof Busduct System 690A Three Phase Busbar Five Wire Enclosed
The XLC-I fireproof busduct system features a 690A three-phase five-wire enclosed busbar trunking solution designed for industrial power distribution applications.
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Dense Bus Duct Selection Parameters
| Current Level (A) |
XLC/4P Width (mm) |
XLC/4P Height (mm) |
XLC/5P Width (mm) |
XLC/5P Height (mm) |
| 400 | 128 | 98 | 128 | 98 |
| 500 | 128 | 108 | 128 | 108 |
| 630 | 128 | 123 | 128 | 123 |
| 800 | 128 | 138 | 128 | 138 |
| 1000 | 128 | 158 | 128 | 158 |
| 1250 | 128 | 183 | 128 | 183 |
| 1600 | 128 | 218 | 128 | 218 |
| 2000 | 128 | 268 | 128 | 268 |
| 2500 | 128 | 280 | 128 | 280 |
| 3200 | 128 | 400 | 128 | 400 |
| 4000 | 128 | 490 | 128 | 490 |
XLC Type Bus Duct Technical Parameters
| Parameter |
Specification |
| Execution Standards | IEC60439.1-2000, IEC60439.2-2000, GB/T 7251.6-2015 |
| Ambient Temperature | -5°C to +40°C (24-hour average ≤35°C) |
| Altitude | ≤2000m |
| Protection Grade | IP54, IP66 |
| Unit Length | 1.6, 2.5, 3.2, 6m (0.5-6m selectable) |
| Rated Operational Voltage | 690V (with tap unit)/1000V (without tap unit) |
| Rated Insulation Voltage (Ui) | 800V (with tap unit)/1000V (without tap unit) |
| Frequency | 50-60Hz |
| Temperature Rise | ≤70K |
| Insulation Resistance | ≥20MΩ |
| Electrical Clearance | ≥10.0mm (with tapping unit)/≥14.0mm (without tapping unit) |
| Creepage | ≥12.5mm (with tap cell)/≥16.0mm (without tap cell) |
| Protection Circuit Effectiveness | <0.02Ω |
| Dielectric Properties | 50Hz, 3750V/min, no breakdown or flashover |
| Installation Method | Vertical or horizontal |
| Number of Plug-in Interfaces | Minimum 0.5/m (double-sided plug available) |
Electrical Performance Specifications
| Rated Current (A) |
Resistance (μΩ/m) |
Reactance (μΩ/m) |
Total Reactance (μΩ/m) |
Voltage Drop (mV/m) |
| 400 | 88.9 | 66.5 | 289.7 | 77.5 |
| 630 | 71.1 | 62.2 | 289.7 | 81 |
| 800 | 56.4 | 39.1 | 184.2 | 77.3 |
| 1000 | 40.3 | 37.9 | 176.3 | 77.5 |
| 1250 | 33.2 | 46.6 | 221.6 | 76.4 |
| 1600 | 24.5 | 30.1 | 150.7 | 74.9 |
| 2000 | 19.5 | 7.4 | 130.7 | 73.3 |
| 2500 | 14.5 | 25.9 | 129.6 | 71.4 |
| 3150 | 11.3 | 25.3 | 120.9 | 69.7 |
| 4000 | 8.9 | 14.3 | 76.2 | 63 |
| 5000 | 6.7 | 13 | 69 | 61.4 |
Mechanical and Safety Specifications
| Rated Short-time Withstand Current (kA) |
Rated Peak Withstand Current (kA) |
Maximum Fixed Spacing (m) |
Balanced Load (kg/m) |
Concentrated Load (kg) |
| 30 | 63 | 4 | 20 | 90 |
| 30 | 63 | 4 | 20 | 90 |
| 50 | 105 | 3 | 25 | 90 |
| 50 | 105 | 3 | 30 | 90 |
| 80 | 176 | - | - | - |