Open Drip Proof Motor

National Motors’ NM Series consists of motors designed for fire pump applications as specified in NFPA 20. These three-phase horizontal low-voltage squirrel-cage medium induction motors are constructed and manufactured as per the requirements of NEMA MG 1 standard Design B. With Open Drip Proof enclosures, they provide the best possible ventilation suitable for environments having minimal airborne contaminants and better cooling that contribute to the most efficient performance available from these motors. 

National Motor’s also offers open drip proof motors that are designed and manufactured to meet or exceed the latest IEC standards where UL certification are not mandatory.

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Features
  • NEMA Energy efficient design
  • Performance As per NFPA 20
  • 3 Phase
  • 15 Service Factor
  • Re-greaseable Ball Bearing
  • Rolled Steel & Cast Iron construction frame.
  • Rated Ambient Temperature 50°C
  • 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
Specifications

UL LISTED ODP MOTORS

SERIES: NM, PERFORMANCE RATINGS: COMPREHENSIVE RANGE

2 POLE AVAILABLE RATINGS: 10 HP - 500 HP**

Rated Voltage

380-400-415v (50Hz), 208-230v (60Hz), 380-400v (60 Hz), 440-460v (60Hz) & 575 (60Hz)

Rated Speed

2861 - 2985 RPM (50Hz) & 3429 - 3585 RPM (60Hz)

 

4 POLE AVAILABLE RATINGS : 10 HP - 400 HP**

Rated Voltage

380 - 415V (50Hz), 208 - 230v (60Hz), 380-400v (60Hz), 460v (60Hz) & 575v (60 Hz)

Rated Speed

1440 - 1485 RPM (50Hz) & 1728 - 1785 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.

CUSTOM DESIGNED ODP MOTORS

SERIES: NM, PERFORMANCE RATINGS: COMPREHENSIVE RANGE

2 POLE AVAILABLE RATINGS: 15 HP - 400HP**

Rated Speed

2800 - 2900 (50Hz) & 3400 - 3500 (60Hz)

 

** These values only indicate the general range available in this series. For the availability of any specific ratings not mentioned, kindly send us an inquiry and we shall gladly assist.

 

Resources

Open Drip Motor - General Catalogue

Download

Installation, Operation & Maintenance Manual - NM Series

Download

Revit File

Download

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