TECHNICAL INFORMATION
Specifications
CERTIFIED VERTICAL HOLLOW SHAFT MOTORS
SERIES: NM, PERFORMANCE RATINGS: COMPREHENSIVE RANGE
| 2 POLE AVAILABLE RATINGS: 20 HP – 100 HP** | |
| Rated Voltage | 380 – 415v (50 & 60Hz) |
| Rated Speed | 2929 – 2941 RPM (50Hz) & 3515 – 3529 RPM (60Hz) |
| 4 POLE AVAILABLE RATINGS: 15 HP – 400 HP** | |
| Rated Voltage | 380 – 415v (50 & 60Hz), 208 – 230v (60 Hz), 460v (60 Hz) |
| Rated Speed | 1465 – 1488 RPM (50Hz) & 1758 – 1789 RPM (60Hz) |
** These values only indicate the overall range available in this series. For the availability of any specific ratings and details of its certification, kindly send us an inquiry and we shall gladly assist.
Vertical Hollow Shaft Motor
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National Motors’ NVHS Series consists of motors designed for fire pump Introduction applications as specified in NFPA 20 (Standard for the Installation of Stationary Pumps for Fire Protection). They are certified by UL as per the requirement of UL 1004-5 ‘Standard for Fire Pump Motors’. These Vertical Hollow Shaft three-phase asynchronous motors are constructed and manufactured as per the requirements of NEMA MG 1 standard Design B.
Features
- NEMA Energy efficient design
- Performance As per NFPA 20
- 3 Phase
- 15 Service Factor
- Cast Iron construction frame.
- Rated Ambient Temperature 50°C.
- Non-Reverse Ratchet
- UL File No. EX26863
- Stainless Steel name plate
- RAL 3000 Standard red painted.
- IP23 Degree of Protection
- Altitude rating of 1000 meters above sea level
