Electrical installations, automation, security systems, data networks, photovoltaic systems, fire detection, access control.
Contact us if you’d like to work with a team of specialists with extensive experience!
Melbo Instal SRL is a company with over 17 years of experience in the field of electrical installations, recognized for its professionalism and the quality of services provided in Timișoara, Arad, and neighboring counties. With a team of 30 specialists and ANRE certifications C1A and C2A, we have implemented complex projects for clients such as Coca-Cola, IKEA, Leroy Merlin Italy, and The Office Timișoara. We work with top-tier equipment from Schneider Electric, ABB, Legrand, Trilux, Zumtobel, OBO, Niedax, Bosch, Schrack, HIKVISION, and Eaton, ensuring complete solutions from design to maintenance, while strictly adhering to safety and energy efficiency standards.
Low and medium voltage electrical installations form the backbone of any modern building, ensuring the safe and efficient power supply to all equipment and systems. At Melbo Instal SRL, we provide comprehensive services for the execution, modernization, and maintenance of these installations, tailored to the needs of our clients in the residential, commercial, and industrial sectors. Whether it’s an apartment building, an office headquarters, a production hall, or a shopping center, we ensure that each project is completed in accordance with the highest technical and safety standards.
Low voltage electrical installations are essential for powering buildings, covering lighting, power outlets, force equipment, and security systems. We work with voltages up to 1000V AC and 1500V DC, in compliance with standards I7 and NTE 007/08/00, ensuring proper sizing of cables, selection of suitable equipment, and protection against overloads and short circuits. Our team designs and installs electrical panels, distribution circuits, grounding systems, and protection systems, using certified materials and modern technologies. Each installation is verified using professional equipment, such as Sonel testers, to ensure compliance with ANRE regulations and operational safety. From single-phase or three-phase connections to complex distribution networks, we ensure that each component is correctly integrated and functions optimally.
Medium voltage installations are designed to power industrial equipment, transformer stations, and distribution networks, operating at voltages between 1kV and 35kV. These require specialized expertise in both design and execution due to the high risks associated with high voltages. Melbo Instal SRL holds ANRE authorizations for medium voltage work and uses state-of-the-art protection and measurement equipment, such as Fluke thermal imaging cameras and grounding system testers. We install line and protection cells, transformers, encapsulated busbars, and distribution panels, complying with safety distances and electrical insulation standards. Our projects include transformer stations, power supplies for industrial machinery, and automation systems, all integrated into a coherent and safe system.
Each project begins with a thorough analysis of the client’s needs and the technical characteristics of the building or installation. Our team of engineers develops single-line diagrams, calculates short-circuit currents, sizes conductor cross-sections, and ensures coordinated protection systems, in accordance with IEC 60909 and SR EN 50522 standards. We provide consulting for energy consumption optimization, integration of renewable sources, and implementation of automation solutions. The technical documentation is comprehensive and includes execution plans, operating instructions, and verification files, ensuring transparency and legal compliance.
The execution of LV/MV electrical installations is carried out by licensed electricians, strictly adhering to occupational safety standards and work procedures under voltage. We use professional equipment from Bosch, Hilti, and Klauke, and all work is continuously monitored to avoid errors and ensure high-quality finishes. After installation is completed, we perform acceptance tests, PRAM measurements, and electrical parameter verifications before commissioning. All installations are tested for short-circuit resistance, thermal stability, and compliance with overvoltage protection requirements.
To ensure trouble-free operation of electrical installations, we offer preventive and corrective maintenance services. We periodically inspect grounding systems, test protection relays, and examine electrical panels, in accordance with standards NTE 010/20/01 and NSSM 111. We quickly identify and remedy any faults, thereby preventing electrocution risks, fires, or unplanned outages. We also offer modernization services for old installations, replacing outdated equipment with energy-efficient and safe solutions.
Each client benefits from a tailored approach, adapted to the specific activity and allocated budget. We have successfully implemented projects for clients such as Coca-Cola, IKEA, Leroy Merlin Italy, and The Office Timișoara, demonstrating our ability to deliver turnkey solutions from design to commissioning. Regardless of project complexity, we commit to meeting deadlines and providing extended warranties for all executed work.
Finished Projects
Years of experience
Experts
Orders from Referrals
Over the years, we have had the privilege of working with many well–known companies. We are always happy to provide client references that attest to the quality of our services!


































A low-voltage electrical installation operates at voltages up to 1000V AC and 1500V DC. These installations are used in residential buildings, offices, shops, schools, and industrial halls to power outlets, lighting, force equipment, and security systems. They are regulated by Standard I7 and must meet strict requirements for circuit sizing, overload protection, and operational safety. At Melbo Instal SRL, we design and execute such installations using certified materials and state-of-the-art equipment, ensuring compliance with ANRE regulations and user safety.
Low-voltage installations are intended for residential and small industrial consumers, operating at voltages below 1kV, while medium-voltage installations (1kV–35kV) are used for energy distribution in urban and industrial networks and transformer stations. Medium-voltage installations require additional protection and insulation measures due to the higher risks associated with high voltages. Additionally, installation and maintenance costs are higher for MV, but they allow energy transmission over longer distances and powering high-power equipment. Our team is authorized by ANRE for both types of installations and ensures execution in compliance with standards NTE 007/08/00 and NTE 009/10/00.
For an MV installation, line and protection cells, transformers, encapsulated busbars, distribution panels, grounding systems, and overvoltage protection are required. We use equipment from Schneider Electric, ABB, and Eaton, as well as professional measurement and testing equipment. Each component must be certified and installed in compliance with safety standards, and staff must be authorized for medium-voltage work.
Duration depends on project complexity and the area served. For a medium-sized office building, execution can take between 2 and 6 weeks, while for a complex industrial project, the deadline can extend to several months. Our team develops a detailed schedule following technical analysis, ensuring that the work is completed within the agreed deadline without compromising quality.
After execution, PRAM inspections (relay protection and measurement equipment), grounding system measurements, insulation tests, and short-circuit trials are mandatory. We perform all these verifications using Sonel and Fluke equipment, ensuring that the installation complies with safety standards and is ready for commissioning. The acceptance documentation includes measurement reports and conformity certificates.
PRAM verification involves testing protection relays and measurement devices to ensure the electrical installation is protected against faults and overloads. This verification is essential for preventing electrical accidents and fires, and is mandatory in accordance with ANRE regulations. We perform these tests with specialized equipment and issue conformity certificates for each installation.
Cable sizing is based on load current, permissible voltage drop, and environmental conditions. We use standards IEC 60909 and SR EN 50522, and our engineers verify the calculations to ensure that the selected cross-sections are adequate and that the installation will operate optimally throughout its lifespan.
We provide an extended warranty for all executed work, including materials and labor. The warranty covers manufacturing defects and execution errors, and our team promptly intervenes to resolve any issues. We also provide technical support and periodic maintenance to extend the installation’s lifespan.
Lack of maintenance can lead to premature equipment wear, short-circuit risks, electrocution, or fire. We recommend periodic inspections in accordance with standards NSSM 111 and NTE 010/20/01 to identify and rectify any faults in a timely manner. We offer customized maintenance contracts tailored to each client’s needs.
Yes, we can integrate photovoltaic panels, energy storage systems, and other renewable sources into existing electrical installations. Our team designs customized solutions to optimize consumption and reduce energy costs, ensuring that new components are compatible with the existing network.
In Romania, electrical installations must comply with Standard I7 for LV, NTE 007/08/00 for cable networks, and NTE 009/10/00 for medium-voltage operations. We comply with all these standards, as well as ANRE and ISC requirements, for the safety and quality of the work.
Energy consumption optimization can be achieved through modernization of the electrical installation, integration of automation systems, use of energy-efficient equipment, and consumption monitoring. We provide specialized consulting and customized solutions to reduce energy costs without compromising comfort or productivity.