Three-phase electric motor: H17RL-355X1-4 400KW 400V/690V 50HZ
| Basic technical data | |
| Motor type | H17RL 355X1-4 |
| Rated power (kW) | 400 |
| Frame size (mm) | 355 |
| Number of poles | 4 |
| Rated speed (rpm) | 1485 |
| Frequency (Hz) | 50 |
| Electrical parameters | |
| Rated voltage (V) | 400/690 |
| Connection | D/Y |
| Rated current 400 V (A) | 691 |
| Rated current 690 V (A) | 401 |
| Efficiency at 100% load (%) | 96,3 |
| Power factor at 100% load | 0,87 |
| Starting and torque characteristics | |
| Rated torque (Nm) | 2572 |
| Locked-rotor torque ratio (LRT/RLT) in % | 140 |
| Breakdown torque ratio (BDT/RLT) in % | 200 |
| Locked-rotor current ratio (LRA/RLA) in % | 700 |
| External starting inertia (kg·m²) | 262 |
| Moment of inertia GD² (kg·m²) | 27,2 |
| Applicable standards | |
| Specification | IEC60034-1 |
| Testing | IEC60034-2 |
| Noise | IEC60034-9 |
| Vibration | IEC60034-14 |
| Construction and operating data | |
| Mounting arrangement | IM B3 (other designs on request) |
| Duty type | S1 |
| Load type | Parabolic or linear curve |
| Degree of protection | IP55 |
| Insulation class | F |
| Temperature rise class | B |
| Cooling method | IC411 |
| Starting method | DOL, VFD or soft starter |
| Direction of rotation | Both |
| Vibration (mm/s) | 2.8 |
| Rotor cage | massive aluminium squirrel cage |
| Terminal box type | VYBO CB2-LV |
| Operating conditions | |
| Ambient temperature range (°C) | -20 to +40 (-30, +50, +60 optional) |
| Maximum installation altitude | up to 1000 m |
| Weight and surface finish | |
| Approximate weight | 2420 kg |
| Colour | RAL7030 |
| Paint finish | gloss |
| Bearings and lubrication | |
| DE/NDE bearings | 6322C3/6222C3 |
| Lubricant | Lithium-based grease No. 2 (temperature class) |
| Accessories | |
| 6 x PT100 in windings | |
| 1 x PT100 in NDE bearing | |
| 1 x PT100 in DE bearing | |
| Space Heater 230V | |
| 3 x PTC in windings | |
The H17RL Compact PRO series is designed for operations where a 4-pole electric motor is expected to provide stable torque, precise integration into the drive and compact output without unnecessary space requirements. The H17RL 355X1-4 model from VYBO Electric fits into large production lines and technological systems where reliable operation under long-term load is decisive.
4-pole electric motor for stable operation of production lines
Rated speed of 1485 rpm together with torque of 2572 Nm supports smooth starting even with demanding mechanical connection to a gearbox or process equipment. For factory operators, it is important that a low-voltage electric motor of this class handles high loads without unnecessary fluctuations in operation.
- Rated output of 400 kW provides reserve capacity for technological systems with high process loads.
- Rated current △ 400V 691 A and rated current Y 690V 401 A simplify switchboard design and power-supply sizing.
- Efficiency of 96,3 % supports energy efficiency in continuous operation.
Robust cast-iron construction for long service life in demanding operation
The robust cast-iron construction increases mechanical resistance to vibration, frequent starts and installation in more demanding operating conditions. For OEM manufacturers of large technological systems, this means a more stable drive base and a lower risk of unwanted downtime.
- Insulation class F and temperature rise B help maintain reserve capacity for longer duty cycles.
- A weight of 2420 kg contributes to assembly rigidity and damping of operating resonances.
- The solid aluminium rotor cage supports durability under repeated loading.
Compact output in a 355 mm frame for space-efficient design
The 355 mm frame size allows this electric motor to be integrated into assemblies where high output must be combined with sensibly designed space. Compact output makes it easier to design the machine base and service access in halls with limited installation reserve.
- GD² moment of inertia of 27,200 kg·m² helps when designing drive dynamics.
- External starting inertia of 262,000 kg·m² provides input for precise assessment of starting.
- A starting torque ratio of 140 % and breakdown torque ratio of 200 % support reliable starting behaviour.
Choice of frequency for international projects
The option to choose the frequency simplifies deployment in plants where technological systems are prepared for different markets and network standards. For integrators, it is important that the low-voltage electric motor can be adapted to operating requirements without changing the overall production-line concept.
Use in production and process technologies
In practice, this model can be used in aggregate crushers, mixers for building materials, large bulk-material conveyors, pump units for water treatment plants, industrial ventilation fan assemblies, press lines and drum mills for material processing. In these applications, smooth power transfer, resistance to loading and easier integration into existing drives are decisive.
VYBO Electric as a proven manufacturer and distributor
VYBO Electric supplies drives for industrial projects with an emphasis on technical continuity and service availability. For large factories and OEM manufacturers, it is important that direct support remains available from a partner familiar with installation, operation and spare-parts requirements.
H17RL Compact PRO delivers energy efficiency, stable output and reserve capacity for long-term use in demanding conditions. Take advantage of the offer and bring your drive to a level that reduces operating risks and supports reliable operation of the technology.




