Electric motor 450 kW, 1485 rpm, 400 V / 690 V, H17RL 355X2-4 LV

In heavy-duty operation, it is decisive whether the drive can handle long-term load without unnecessary downtime. The H17RL 355X2-4 is designed for the 1400-1500 rpm range in applications where performance for demanding technologies and reliable starting under load are expected. This low-voltage asynchronous electric motor is intended for operations that are modernising lines, replacing older units, or looking for reserves in the energy balance.

The 1400-1500 rpm range for stable operation of demanding technologies

In practice, an output of 450 kW at a nominal speed of 1485 rpm is applied, while the nominal torque of 2894 Nm supports pumps, compressors, and mixers with higher inertia. The starting torque of 140 percent helps when starting loaded machines, the pull-out torque of 200 percent provides a reserve during dynamic changes, and the starting current of 700 percent must be considered when designing protection and starting. The efficiency value of 96.3 percent, together with a power factor of 0.87, reduces pressure on the supply network and helps keep operating costs under control. This three-phase motor 400/690 V is suitable where long-term reliability is monitored, not only immediate performance.

Compact performance and frame size 355 mm in industrial practice

The 355 mm frame size brings a compact solution with high power density, which is well suited to switchgear rooms and modernisations without major structural interventions. The motor can be matched with 380 V, 440 V, 500 V, 690 V, and 720 V networks, making it easier to integrate into operations with different low-voltage infrastructure. VYBO Electric develops and manufactures these electric motors for European industry, especially for Western Europe, where emphasis is placed on reliable procurement and predictable operation.

Construction prepared for a long service interval

The standard equipment includes a steel cooling cover, reinforced bearings with steel shielding, high-temperature grease in the bearings, a metal terminal box, and reinforced bearing shields. The solid aluminium rotor cage supports durability during repeated starts. The DE bearing 6322C3 and the NDE bearing 6222C3 are selected with regard to operating stability and service reliability. Insulation class F and temperature rise B create reserves for more demanding duty cycles, which production plants and technology suppliers will appreciate. The equipment includes PT100 winding and bearing sensors, an anti-condensation heater, and three PTC thermistors, so motor condition monitoring is ready from delivery.

Voltage levels for industrial electric motors 400/690 V

The model is suitable for industrial electric motors 400/690 V, where flexibility in connection and sensible coordination with inverters, switchboards, and protection devices are required. The nominal current in delta at 400V is 778 A and the nominal current in star at 690V is 451 A, so the output can be precisely adapted to the specific network and operating mode. The weight of 2580 kg, the external starting inertia of 295 kg.m2, and the moment of inertia GD2 of 28.4 kg.m2 are important when designing foundations, couplings, and starting systems. This three-phase motor 400/690 V is therefore a practical choice for technological units where drive replacement is being addressed without unnecessary compromises.

4-pole electric motor for pumps, fans, and processing lines

A 4-pole electric motor with this output is used in cement plant fans, process pumps, compressor units, briquetting lines, mixing tanks, conveyor units, crushers, and granulators. The modern design created using Hi-TECH technologies supports more precise sizing and better integration into automated assemblies. Thanks to its own research and development, the H17RL Compact PRO series has a stable place in projects where long service life, service predictability, and safe procurement are required.

If you need a drive for a modernisation or a new project, the H17RL 355X2-4 offers a balanced combination of performance, structural reserve, and compatibility with common industrial infrastructure. VYBO Electric builds on years of experience in the design of large electric motors, which is noticeable in practice both in the design stage and during subsequent operation. For a specific application, please request a quotation.

Overview for reliable selection and safe deployment

For operations that need to quickly verify drive suitability, the combination of efficiency, starting characteristics, and the availability of voltage variants is also important. The H17RL Compact PRO therefore helps to shorten the time required for technical design while also leaving room for long-term stable operation in demanding conditions. When the assembly is designed correctly, it delivers reliable procurement based on the proven construction and manufacturing background of the VYBO Electric brand.