W40 Open Drip Proof (ODP) Motor
WEG W40 open drip proof motor with a cast iron frame and high power density, for environments with little moisture or dirt, in NEMA and IEC frames.
Specifications
- Output (NEMA)
- 25–2,500 HP
- Output (IEC)
- 11–2,000 kW
- Number of poles
- 2, 4 and 6
- Frame sizes
- NEMA 254/6T–L6808/09; IEC 160M–450K/J
- Voltage (NEMA)
- 208–4,160 V, 60 Hz
- Voltage (IEC)
- 380–690 V LV; 1.2–5 kV HV; 50 or 60 Hz
- Efficiency level
- High Efficiency / NEMA Premium; IE1–IE4 for IEC
- Degree of protection
- IP23 ODP (IP24 / WPI on the largest frames)
- Cooling
- Open, self-ventilated (IC01)
- Service factor
- 1.25 (up to 150 HP), 1.15 (above 150 HP)
- Insulation class
- F
- Frame material
- Cast iron
- Bearings
- Ball bearings, L10h 100,000 hours
W40 is an open drip proof (ODP) induction motor platform. Thanks to its open enclosure it reaches a higher power density than totally enclosed (TEFC) motors of the same size, making it a cost-effective choice where a high degree of protection is not required. The line is designed for environments where moisture and dirt are minimal.
The cast iron frame offers strong ventilation and heat dissipation together with low vibration and high mechanical rigidity. Its geometry was optimised with simulation tools to keep noise low despite the large airflow through the casting. Vibration and noise levels comply with NEMA MG-1 parts 7 and 9, and L10h bearing life is 100,000 hours in direct coupling.
An oversized, diagonally split terminal box, F1/F2 reversible design, easy access to grease inlets and outlets and flat pads for vibration sensors make installation and maintenance easier. Euronorm provides selection support and quotations for output, voltage and frame in the W40 range.
Features
High power density
The open enclosure delivers more output than TEFC motors of the same size.
Rugged cast iron frame
The cast iron frame provides high rigidity, good heat dissipation and low vibration.
Low noise and vibration
Levels comply with NEMA MG-1 parts 7 and 9.
Long bearing life
L10h bearing life is 100,000 hours in direct coupling.
Service-friendly design
A large, diagonally split terminal box and easy grease access speed up maintenance.
Applications
- Compressors
- Pumps
- Fans and blowers
- Chillers
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