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Technical data overview
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Brief overview
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Water-cooled motors:
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1RN4, 1RN6
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Air-cooled motors:
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1RQ4, 1RQ6
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Open-circuit ventilated motors:
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1RA4, 1RA6, 1RP6
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Shaft heights:
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450, 500, 560 mm
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Power range:
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720 … 4000 kW
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No. of poles:
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4 … 8 poles
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Rated voltages:
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690 V
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Drive converters:
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Degree of protection:
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IP55 (1RN4, 1RQ4, 1RN6, 1RQ6)
IP23, WP II (1RA4, 1RA6, 1RP6)
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Cooling type:
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IC 01 (1RA4, 1RA6)
IC 611 (1RQ4, 1RQ6)
IC 81 W (1RN4, 1RN6)
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Type of construction:
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IM B3 (IM 1001), IM V1 (IM 3011)
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Enclosure:
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gray cast iron enclosure
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Bearings:
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Roller bearings, electric insulated on NDE-side
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Regulations/Standards:
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IEC, EN
NEMA, API
Specifications, e.g. shipbuilding
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Explosion protection:
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- Non sparking, Zone 2, II 3 G Ex nA II C T3 Gc
- Pressurized, Zone 1, II 2 G Ex px II C T3 Gb
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