High-voltage electric motor 1120 kW, 2986 rpm, 6000 V, IC611, H27R 4503-2-6

In heavy production, compressor stations and power-generation units, every percentage point of loss affects operating costs. That is why H27R 4503-2-6, as a 2900 rpm electric motor, delivers an output of 1120 kW, stable operation under long-term loading and noticeably lower energy losses compared with older drives. In practice, this means better economy in continuous operation and greater scope for optimising the complete drive.

High efficiency helps reduce costs in large drives

For operators of technological systems, it is important that the motor not only delivers the required output but also places as little burden as possible on the electricity budget. This unit uses IE4 Super Premium efficiency, which helps limit losses in high-power applications and improves the economics of long-term operation. Rated current of 122,9 A, power factor of 0,91 and rated torque of 3582 Nm provide an operating basis suitable for demanding process connections where reliable power transmission without unnecessary fluctuations is required.

Starting characteristics are important when designing the power supply, protection and mechanical reserve. Starting torque reaches 0,7 times the rated torque, breakdown torque 2,9 times the rated torque and starting current 6,9 times the rated current, so the sizing of the switchboard, switching equipment and overcurrent protection should be considered precisely. A rated speed of 2986 rpm is also well suited to applications where rapid process response and a compact torque characteristic are required.

Welded steel frame simplifies installation and handling

The motor design is intended for large industrial systems where strength, precise seating and logistics all play a role. The welded steel frame provides high rigidity at a lower weight, simplifying transport and installation of large machines in halls with limited handling space. With a packaged weight of 4600 kg, this is a robust unit prepared for deployment in demanding operating conditions.

A frame size of 450 mm supports integration into high-power assemblies where rigid mounting and precise connection to the process technology are required. For drive designers, rotor inertia of 15,3 kg·m² and load inertia of 75,0 kg·m² are also advantageous because these values help when designing acceleration, coast-down and process stabilisation after a load change.

Standard thermal protection and monitoring increase operating confidence

With continuous load changes, it is important to detect temperature and operating deviations early. This three-phase electric motor is suitable for applications where standard thermal protection and monitoring are valued because, at high outputs, monitored temperature points help protect the winding and bearings more effectively. In combination with insulation class F and temperature rise B, this increases operating confidence under long-term loading and frequent technological changes.

The solution is designed to fit naturally into modern drive technology in metallurgy, power generation and heavy material processing. High efficiency, rigid construction and an emphasis on temperature monitoring form a combination appreciated by operations requiring stable output without unnecessary downtime. VYBO Electric has long focused on solutions with an emphasis on service readiness and technical consistency.

Types of operations where the output can be fully utilised

The motor is used in technological systems where continuous output, precise control and resistance to demanding starting are required. This two-pole electric motor is suitable for the following applications:

• Main blowers for high-temperature technological lines.
• Compressor units for industrial air-distribution systems.
• Raw-water pumps in power-generation and water-supply systems.
• Centrifugal process-media pumps in the chemical industry.
• Mills for crushing and grinding material in mining production.
• Fan units for cooling towers and drying lines.
• Rolling and conveying lines in metallurgical operations.
• Refinery pumping systems with continuous operating load.
• Granulation equipment in polymer processing.
• Pressing lines requiring high continuous output.
• Mine dewatering systems with uninterrupted operation.
• Industrial mixers and agitated reactors in large plants.
• Mechanical drives for belt conveyors in raw-material warehouses.

Power supply, interface and drive design for 6000 V systems

When integrating into large switchboards, it is important to verify the voltage system, protection and starting philosophy. This motor is intended for use in systems with a 6000 V power supply where reliable cooperation with power protection, measurement and technological-line control is expected. A rated speed of 2986 rpm enables direct sizing of the gearbox, coupling and downstream mechanical components without unnecessary compromises.

When designing the assembly, the bearing arrangement must also be considered; both the DE and NDE sides use type 6322-C3. This commonality simplifies maintenance and supports long-term operating predictability in environments with high reliability requirements. The H27R 4503-2-6 model therefore fits projects where not only power but also precise coordination with the complete technology is important.

Prepared for long-term industrial deployment

With high-power drives, the decisive factor is whether the motor can handle long operating cycles without unnecessary deterioration in parameters. This unit is designed for stable operation combining efficiency, mechanical durability and suitable thermal reserve. If you are looking for a solution for a large process or energy drive, contact us and we will prepare a recommendation for your specific application.