Main Low-Voltage Switchboards (MLVS)
Main Low-Voltage Switchboards (MLVS)
Main Low-Voltage Switchboards (MLVS) are electrical distribution assemblies designed to receive and distribute electrical power in residential, industrial, and commercial facilities. They are intended for AC electrical networks with operating voltages of up to 1,000 V.
The MLVS is a key component of any power distribution system, ensuring the reliability, safety, and efficient distribution of electrical energy.
Types of Assemblies
There are several types of Main Low-Voltage Switchboards (MLVS), classified according to their function and installed equipment.
By Installed Equipment
- Incoming switchboards — designed to receive electrical power from the incoming supply source.
- Distribution switchboards — used to distribute electrical power among outgoing circuits and consumers.
- Main Low-Voltage Switchboards (MLVS) — combine the functions of both incoming and distribution switchboards within a single assembly.
By Network Voltage
- Low-voltage — up to 1 kV.
- Medium-voltage — from 1 kV to 35 kV.
By Earthing System
- TN-S — solidly grounded neutral with a separate PE (Protective Earth) conductor.
- TN-C — solidly grounded neutral with a combined PEN (Protective Earth and Neutral) conductor.
- TT — grounded equipment enclosures with a separate earth electrode system.
By Rated Current
- Up to 100 A — suitable for residential and small commercial or industrial applications.
- Up to 630 A — designed for larger industrial and commercial facilities.
MLVS assemblies may be manufactured as a modular or block-type system in the form of a cabinet (wall-mounted or floor-standing version) or a panel (for installation inside an electrical switchboard).
Features and Functions of Main Low-Voltage Switchboards (MLVS)
Main Low-Voltage Switchboards (MLVS) are used in industrial and commercial buildings to receive and distribute electrical power. They feature a high power capacity (from several dozen to several thousand kilowatts) and a more advanced structural design.
An MLVS is a comprehensive electrical assembly that incorporates electrical switchboards, fuses, and other control and protection components.
Functions
- Reception of electrical power from the incoming power source.
- Distribution of electrical power among outgoing circuits and consumers.
- Protection against overloads and short circuits.
- Electrical energy metering.
- Reactive power compensation.
- Power system automation.
Protection rating: IP31 or IP54.
What Is Included in the Assembly?
A Main Low-Voltage Switchboard (MLVS) consists of:
- MLVS cabinet — a metal enclosure housing all components of the switchboard.
- Main incoming circuit breaker — protects the system against overloads and short circuits.
- Metering devices — electricity meters for monitoring and recording energy consumption.
- Protection devices — circuit breakers and fuses that protect outgoing feeders from overloads and short circuits.
- Busbar system — distributes electrical power to the outgoing circuits.
The configuration can be supplemented with additional devices depending on the specific requirements of the facility. For a solution fully tailored to the technical characteristics of a residential, commercial, or industrial project, it is best to work directly with the manufacturer.
How to Choose a Main Low-Voltage Switchboard (MLVS)
Nika Energy is a Ukrainian manufacturer of electrical equipment for the power industry. Our catalog includes a wide range of ready-made solutions for residential, commercial, and industrial applications.
Why Purchase an MLVS Directly from the Manufacturer?
- Quality guarantee — we manufacture our own products and provide a comprehensive warranty.
- Competitive price — direct supply eliminates intermediaries, reducing overall project costs.
- Wide product range — multiple MLVS models and configurations are available to suit different applications.
- Custom manufacturing — we can design and build an MLVS according to your exact technical specifications.
- Technical support — our engineers provide expert consultation throughout the design, manufacturing, installation, and commissioning stages.
- Complete solution — purchase all the required equipment from a single supplier and receive a fully integrated system ready for installation and commissioning.
When selecting a Main Low-Voltage Switchboard (MLVS), it is important to consider the facility's electrical load, the number of connected consumers, safety requirements, operating conditions, and the available budget. These factors determine the optimal configuration and overall performance of the system.
Our specialists will guide you through every stage of the selection process, explain all technical details and terminology, and help you choose the solution that best meets your project's requirements.