AmTecs Cast Iron 37kW 8 Pole IE3 Motor – 50HP 750rpm IEC 280SB5 Flange Motor

£3,517.50

In Stock – Fast UK Delivery & 1-Year Warranty Included ✅

✅ IEC 280SB5 cast iron motor built for demanding industrial duty
✅ 37kW 8 pole output delivering dependable 740rpm performance
✅ IE3 efficiency with IP55 construction for reliable continuous service
✅ 400/690V 3 phase supply with Class F insulation and PTC protection
✅ Flange Motor suited to pumps, fans, blowers, conveyors, and machinery

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AmTecs Cast Iron 37kW 8 Pole Motor – 280SB5 Flange Motor

AmTecs cast iron 37kW 8 pole three-phase electric motor in IEC 280SB5 format, built for heavy-duty industrial service on fans, pumps, blowers, belt drives, and machinery where low-speed, higher-torque duty is required. This IE3 motor combines robust cast iron construction with B5 flange mounting, making it a dependable choice for direct machine coupling and installations where flange fixing is preferred.

This version runs at approximately 740rpm on 50Hz supply and is designed for users who need a reliable 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 37kW 8 pole motor is supplied in 280S frame size with B5 mounting for installations where durability and predictable operation matter.


Key Technical Specifications

  • Motor Type: 3 phase cast iron electric motor
  • Brand: AmTecs
  • Power Output: 37kW
  • Pole Configuration: 8 pole
  • Nominal Speed: 740rpm
  • Efficiency Class: IE3
  • Full Load Efficiency: 91.8%
  • Power Factor: 0.79
  • Frame Size: 280S
  • Mounting Arrangement: B5 – Flange Motor
  • 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: 478Nm
  • Sound Pressure Level: 76dB(A)
  • Weight: 545kg

Why Choose This AmTecs Cast Iron Motor?

  • Heavy-duty cast iron build for demanding industrial environments and improved mechanical durability.
  • 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 for flange-coupled pumps, fans, process equipment, and machinery where a direct flange-mounted installation is required. 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 37kW 8 Pole Motor mounting style you need (280S Frame).

Need a different motor power? Explore the closest available motor sizes around 37kW.

More Amtecs motors: Browse all 37kW motors | Browse all Amtecs Cast Iron Motors


At Worm Gear Motors Online we offer competitive prices on genuine AmTecs cast iron 37kW 8 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 37kW 8 pole motors used for?
37kW 8 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 8 pole motor run at?
On a 50Hz supply, a 8 pole motor typically runs at about 740rpm 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.

Construction

Cast Iron

Frame Size

280S

Mounting

B5 (Flange Mount)

Voltage

400/690V

Dimensions
Weight 545 kg

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