AmTecs Cast Iron 250kW 2 Pole Motor – 355MB35 Foot & Flange Motor
AmTecs cast iron 250kW 2 pole three-phase electric motor in IEC 355MB35 format, built for heavy-duty industrial service on fans, pumps, blowers, belt drives, and machinery where higher running speed is required. This IE3 motor combines robust cast iron construction with B35 foot and flange mounting, giving users a flexible installation option where both base support and flange fixing are required.
This version runs at approximately 2982rpm on 50Hz supply and is designed for users who need a reliable foot and flange motor with IP55 protection, Class F insulation, and continuous-duty industrial performance.
Motor Overview
Designed for everyday industrial running, the AmTecs cast iron IE3 motor range offers strong construction, efficient performance, and straightforward IEC interchangeability. This 250kW 2 pole motor is supplied in 355M frame size with B35 mounting for installations where durability and predictable operation matter.
Key Technical Specifications
- Motor Type: 3 phase cast iron electric motor
- Brand: AmTecs
- Power Output: 250kW
- Pole Configuration: 2 pole
- Nominal Speed: 2982rpm
- Efficiency Class: IE3
- Full Load Efficiency: 95.8%
- Power Factor: 0.92
- Frame Size: 355M
- Mounting Arrangement: B35 – Foot & Flange Mount
- Voltage: 400/690V 3 phase 50Hz
- Enclosure Protection: IP55
- Duty Cycle: S1 continuous duty
- Insulation Class: F
- Thermal Protection: PTC thermistors fitted as standard
- Approx. Full Load Torque: 800.6Nm
- Sound Pressure Level: 90dB(A)
- Weight: 1643kg
Why Choose This AmTecs Cast Iron Motor?
- Heavy-duty cast iron build for demanding industrial environments and improved mechanical durability.
- Foot & Flange Motor format to suit compatible equipment and installation layouts.
- IE3 efficiency to support reduced running losses in continuous-duty applications.
- IP55 enclosure and Class F insulation for dependable day-to-day industrial service.
- PTC thermistors fitted to support suitable motor protection arrangements.
Typical Applications
This motor is commonly selected where combined foot and flange fixing is preferred, including pumps, fans, process equipment, and machinery needing added installation flexibility. It is well suited to industrial duties where a robust IEC motor replacement is needed and where the selected pole count matches the required shaft speed.
Internal Links & Compatible Options
Same motor power, different mounting options: jump to the AmTecs Cast Iron 250kW 2 Pole Motor mounting style you need (355M Frame).
Need a different motor power? Explore the closest available motor sizes around 250kW.
More Amtecs motors: Browse all 250kW motors | Browse all Amtecs Cast Iron Motors
At Worm Gear Motors Online we offer competitive prices on genuine AmTecs cast iron 250kW 2 pole motors, with fast UK delivery and expert help choosing the correct frame and mounting style for your application.
Frequently Asked Questions
What applications are 250kW 2 pole motors used for?
250kW 2 pole motors are commonly used on pumps, fans, blowers, compressors, conveyors, and general industrial machinery where dependable three-phase performance and the correct operating speed are required.
What speed does a 2 pole motor run at?
On a 50Hz supply, a 2 pole motor typically runs at about 2982rpm under load, making it suitable for applications matched to that speed range.
What mounting options are available?
Depending on frame size, this motor format is available in B3 foot mount, B5 flange mount, and B35 foot and flange mount versions to suit different installation layouts.
Is this motor suitable for inverter drive use?
Yes, AmTecs cast iron IE3 motors can be used with inverter drives when the drive is correctly specified and the operating parameters are set to suit the motor and application.
What protection and insulation does it have?
This motor features IP55 enclosure protection with Class F insulation, making it suitable for a wide range of industrial environments.
Can you help me choose the correct motor?
Yes, we can help with motor selection based on power, speed, frame size, shaft arrangement, and mounting style.
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