XL-21 Power Distribution Box
Wall-mounted indoor power/lighting box for three-phase systems below 500 V — fully enclosed C/8MF-profile body, on-load rotary isolating switch, ≤ 800 A with rich wiring schemes.
- Electrical performance fully meets GB 7251.1 and IEC 60439-1
- Outgoing feeders use compact high-breaking MCCBs with short/zero arcing and compound releases — overload & sho
- Motor circuits protected against overload, short circuit, under-voltage and phase loss
- Auxiliary circuits support local/remote control with automatic change-over
A cleaner, more reliable approach to MV switching
The HP-ELS series replaces SF₆ with environmentally friendly insulating media while keeping the proven safety and performance utilities expect from gas-insulated switchgear.
Product Overview
The new XL-21 power distribution box is widely used in power plants and industrial/mining enterprises for power or lighting distribution in three-phase three-/four-/five-wire systems below three-phase AC 500 V. Wall-mounted indoors with front-panel operation and maintenance, its fully enclosed body is assembled from C-profiles or 8MF profiles and uses a new rotary load-isolating switch allowing on-load operation. Compact, attractive and easy to maintain, with multiple wiring schemes, it is an ideal replacement for the traditional XL-21.
Technical specifications
Headline ratings at a glance, followed by the full technical data sheet. Exact values are confirmed per project configuration.
| Parameter | Value |
|---|---|
| Main-circuit rated voltage | AC 380 V |
| Auxiliary-circuit voltage | AC 220 / 380 V |
| Rated frequency | 50 Hz |
| Rated insulation voltage | 660 V |
| Rated current | ≤ 800 A |
Reading the model designation
Generated automatically from each product's model code.
Overall dimensions
Cabinet height, width and depth options. Selection depends on cable type and incoming / outgoing configuration.
| Item | Dimensions (mm) | Scope of application |
|---|---|---|
| Width W | 800 (600 opt.) | mm |
| Depth D | 500 (400 opt.) | mm |
| Height H | 1800 (1600 opt.) | mm |
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