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Standard Motors up to Frame Size 315
H-compact PLUS in low-voltage version
IEC Motors
The synthesis of a compact motor design and modular cooling, especially for converter operation Non-standard Motors Frame Size 315 and Above
Highest power rating, reliability, efficiency and modular cooling system: This distinguishes the three-phase motors of the H-compact PLUS series.

These motors are available in shaft heights 450, 500, 560 mm with a gray caste iron enclosure, in degree of protection IP 55 or IP 23 - air or water cooled.

H-compact in low-voltage version
H-compact PLUS in low-voltage version
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The insulation and bearing system guarantees the highest degree of reliability.

Siemens frequency converters and motors generates an efficient drive system for applications with constant torque and also with square-law countertorque characteristic.

The lifecycle costs are extremely important – and these make the H-compact PLUS motor so attractive.

H-compact PLUS motors save energy, require little maintenance and operate reliably over their long motor lifetime. An investment that pays back in a short time. H-compact PLUS motors are environmentally-friendly and can be recycled up to approx. 98%.

H-compact PLUS (low voltage) - Customer benefits  
Customer benefits
Optimized for maximum compactness
High power with low envelope dimensions and weight
High efficiency and power factor
Low power costs
MICALASTIC insulation using VPI technology High degree of reliability and high service lifetime
Extensive experience and know-how regarding
sector requirements and their implementation
Sector regulations and specifications can be complied with e.g. for marine (ship's classification societies)
690 V version for connection to a drive converter up to the highest power ratings Favorably-priced low-voltage technology for operation with a drive converter available
High-speed versions available with a
speed control range up to 4500 rpm
In many cases a gearbox can be eliminated
Low noise level High customer requirements and requirements of safety at work legislation are fulfilled
H-compact PLUS (low voltage) - Technical data overview  
Brief overview  
Water-cooled motors:
Air-cooled motors:
Open-circuit ventilated motors: 1RA4
Shaft heights: 450, 500, 560 mm
Power range: 720 up to 4.000 kW
No. of poles: 4 - 8 poles
Rated voltages: 690 V
Drive converters: Masterdrives, SINAMICS
Degree of protection: IP 55 (1RN4, 1RQ4)
IP 23, WP II (1RA4)
Cooling type: IC 01 (1RA4)
IC 611 (1RQ4)
IC 81 W (1RN4)
Type of construction: IM B3 (IM 1001), IM V1 (IM 3011)
Enclosure: gray caste iron enclosure
Bearings: Roller bearings, electric insulated on NDE-side
Regulations/Standards: IEC, EN
Specifications, e.g. shipbuilding
Explosion protection: Ex nA II
H-compact PLUS (low voltage) - typical applications  

          Oil & Gas
          Chemical industry
          Steel industry
          Air separation
          Pulp & paper
          Power stations

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