Our products
Low-voltage switchgear and controlgear assembly of KRU-KEP-1/22 type
Low-voltage assembly is designed for power reception, control, overload and short-circuit protection, measurement, metering, and distribution of electrical energy up to 690 V at 50, 60 Hz, for use in power supply, control, and automation systems as distribution switchboards, power distribution centers, control and automation panels and cabinets.
Main application areas of low-voltage assemblies:
- enterprises of petrochemical, mining, metallurgical, and machine-building industries;
- power plants and substations of energy systems;
- communication nodes and telecommunication systems;
- medical institutions;
- transport infrastructure facilities.
Low-voltage assembly is manufactured with mass-produced stationary, removable, or withdrawable modules. A large number of module combinations, along with simplicity and high speed of installation and replacement, allow meeting any customer requirements.
Technical specifications and main versions |
|
| Parameter / Description | Value / Rating |
|---|---|
| Rated current of main busbars, A | 630 - 6300 |
| Rated current of distribution busbars, A | 475 - 4100 |
| Main circuit rated operating voltage, B | ~ 220, ~ 380, ~ 690 |
| Rated insulation voltage, B | 750, 1000 |
| Rated impulse withstand voltage, kV | 8, 12 |
| Rated frequency, Hz | 50, 60 |
| One-second thermal withstand current (short-time withstand current) at 0.4 kV voltage, kA: - from 250 to 400 kVA - from 630 to 1000 kVA - for 1600 kVA - for 2500 kVA |
20 30 50 100 |
| Electrodynamic withstand current (peak current) of busbars and branch circuits at 0.4 kV voltage, kA: - from 250 to 400 kVA - from 630 to 1000 kVA - for 1600 kVA - for 2500 kVA |
40 66 110 220 |
| Auxiliary circuit rated voltage, B | ~220, ~380-24,-48, -220 |
| Earthing system | ТТ / IT / TN-S / TN-C |
| Cable entry / Busbar entry | bottom / top |
| Service method | double-sided / single-sided |