Cable Cabinets (Assemblies) CA-3
Cable distribution cabinets (CDC), or cable cabinets, are designed to receive and distribute three-phase alternating current (AC) at a voltage of 380 V and a frequency of 50 Hz in systems with a solidly earthed neutral. They also protect outgoing lines against overloads and short circuits.
Legend
Cable Assemblies are recommended for:
- reconstruction of electrical networks to increase the number of feeders by tapping into an existing cable;
- increasing the number of outgoing lines by connecting them to the feeder of the nearest transformer substation.
CA assemblies are installed on a brick or other foundation (support) 150–300 mm high and secured to both the foundation and the building wall. Installation without wall anchoring is not recommended.
The support is not included in the CA scope of supply.
Technical specifications are provided in Table 1.
The general view and overall dimensions are shown in Fig. 1.
Climatic version: U3 according to GOST 15150.
Cabinet ingress protection rating (except for the bottom): IP54 according to GOST 14254.
The cabinets comply with TU U 27.1-45149048-001:2023.
| Cabinet Type | In, A | Installed Fuses | Weight, kg | ||
|---|---|---|---|---|---|
| 100 A | 250 A | 400 A | |||
| CA-3 | 400 | - | 2 | 1 | 79 |
Table 1. Technical Specifications of the Cabinets
Maximum cross-sectional area of connected cables, mm²:
• 100 A – 70 mm²;
• 250 A – 150 mm²;
• 400 A – 240 mm²;
• Busbars – 5 × 50 mm².