SIEMENS HEAVY DUTY 335HP MOTOR

Siemens IE3 335 HP Motor

250 kW | 335 HP | 8 Pole | 750 RPM | 415 V | 3 Phase

We Tech Power Solutions Ltd supplies Siemens IE3 335 HP industrial motors for heavy-duty industrial applications requiring high torque, reliable continuous operation and energy-efficient motor performance.

The featured motor is a 250 kW (335 HP), 8-pole, 750 RPM, 415 V, 50 Hz, three-phase motor, with B3 foot mounting, IP55 protection and Class F insulation. The current WTPSL product specification identifies the model as 1PQ8 355-8PB70, with frame size 355 and IC411 cooling.

Ideal for pumps, fans, compressors, paper machinery, hydraulic systems, cooling towers, compressors, textile machinery, machine tools and other demanding industrial equipment.

Siemens IE3 335 HP Motor

The Siemens IE3 335 HP motor is a high-power three-phase industrial motor designed for applications where dependable mechanical output, efficiency and continuous-duty performance are important.

With a rated output of 250 kW / 335 HP, the featured 8-pole motor operates at approximately 750 RPM, making it suitable for applications that require high torque at lower operating speed.

The motor is designed for S1 continuous duty, with cast-iron construction, IP55 protection and Class F insulation. WTPSL also lists options and specialties such as VPI/VFD suitability, thermistors, insulated bearings, space heaters and forced cooling.

Key Features

IE3 Premium Efficiency

The motor is specified with IE3 efficiency, helping industrial users improve motor energy performance in continuous-duty applications.

250 kW / 335 HP Output

High output power makes the motor suitable for large industrial equipment and heavy-duty driven systems.

8-Pole, 750 RPM

The 8-pole configuration provides a lower-speed operating profile suited to high-torque applications.

415 V Three-Phase Supply

The featured configuration is rated for 415 V, 50 Hz, three-phase industrial power supply.

S1 Continuous Duty

Designed for continuous industrial operation where the motor may be required to run for extended periods.

Cast-Iron Construction

A robust enclosure construction suited to demanding industrial environments.

IP55 Protection

The IP55 enclosure provides protection against dust ingress and water jets from applicable directions.

Class F Insulation

Class F insulation provides suitable thermal capability for industrial motor applications when operated within the manufacturer's specified conditions.

VFD-Compatible Options

For applications requiring variable-speed operation, VFD-suitable configurations can be selected according to the motor and drive requirements.

Technical Specifications

Specification Details

Brand Siemens

Product Type IE3 Industrial Motor

Rated Output 250 kW

Rated Power 335 HP

Number of Poles 8 Pole

Rated Speed 750 RPM

Rated Voltage 415 V

Frequency 50 Hz

Phase Three Phase

Efficiency Class IE3

Protection Class IP55

Insulation Class Class F

Duty S1 Continuous Duty

Mounting B3 Foot Mounted

Frame Size 355

Cooling Method IC411

Motor Series 1PQ8

Model / MLFB 1PQ8 355-8PB70

Construction Cast Iron

Certification CE

Country of Origin India

Manufacturer Siemens Limited

The above specifications are based on the current WTPSL product listing. The complete motor order number and nameplate should always be verified before purchase because motor configurations can vary by mounting, voltage, cooling, terminal-box position and optional features.

Motor Specialties & Options

Depending on the exact configuration, the motor can be specified with additional features for specialized industrial applications.

• VPI / VFD Suitable

• Thermistors

• Insulated Bearing

• Space Heater

• Forced Cooling

• RHS Terminal Box

• 415 V Standard Voltage

These specialties are listed on the current WTPSL product page.

Applications

The Siemens IE3 335 HP motor can be used in a wide range of industrial applications:

• Pumps

• Fans & Blowers

• Compressors

• Paper Machinery

• Dairy Equipment

• Hydraulic Presses

• HVAC Systems

• Grinding Machines

• Vertical Boring Machines

• Milk Pumps

• Chilling Plants

• Blenders

• Pulverizers

• Condensers

• Agitators

• Air Compressors

• Centrifuges

• ID & FD Fans

• Cooling Towers

• Cold Storage Systems

• Plastic Machinery

• Machine Tools

• Air Conditioning Systems

• Textile Machinery

These applications are based on the application categories currently listed by WTPSL.

Industries

• Paper & Pulp

• Cement

• Steel & Metals

• Textile

• Plastics

• Chemical Processing

• Pharmaceuticals

• Food Processing

• Water & Wastewater

• HVAC & Refrigeration

• Manufacturing

• Industrial Processing

• Heavy Engineering

• Infrastructure

Siemens IE3 335 HP Motor for VFD Applications

For variable-speed applications, the motor should be selected specifically for VFD operation rather than assuming that every standard motor configuration is suitable for every inverter-duty application.

Important considerations include:

• Drive output voltage

• Frequency range

• Motor insulation

• Bearing protection

• Cooling at reduced speed

• Torque requirement

• Harmonic effects

• Cable length

• EMC requirements

• Operating duty cycle

The WTPSL-listed motor includes VPI/VFD suitability as an available specialty.

335 HP Motor Selection Guide

Before purchasing a Siemens IE3 335 HP motor, verify:

1. Required Power

Confirm whether the driven equipment requires 250 kW / 335 HP.

2. Operating Speed

The featured motor is 750 RPM / 8 Pole. Confirm that this matches the required machine speed.

3. Voltage

Confirm compatibility with the available 415 V industrial supply.

4. Starting Method

Determine whether the motor will use direct-on-line, star-delta, soft starter or VFD starting.

5. Mounting

Confirm whether B3 foot mounting is suitable for the machine.

6. Cooling

Verify whether standard IC411 cooling is sufficient or forced cooling is required.

7. Environment

Consider ambient temperature, humidity, dust, chemical exposure and installation location.

8. VFD Operation

If variable-speed operation is required, specify a suitable VFD-compatible configuration.

9. Protection

Verify IP rating, thermal protection and any required bearing or winding protection.

10. Complete Motor Order Number

Always confirm the complete Siemens MLFB before placing an order.

Siemens IE3 335 HP Motor Supplier in Ahmedabad, Gujarat & India

We Tech Power Solutions Ltd supplies Siemens industrial motors for customers in Ahmedabad, Gujarat and across India.

We support customers with:

• Siemens 335 HP motor sourcing

• 250 kW motor selection

• Motor specification verification

• MLFB/order-number identification

• Motor replacement support

• VFD-compatible motor selection

• Mounting configuration selection

• Technical comparison

• Commercial quotation support

• Industrial motor sourcing

If you are replacing an existing motor, share the nameplate photograph, complete motor MLFB, rated power, RPM, voltage and mounting details for accurate identification.

Siemens IE3 335 HP Motor Supplier for UAE & Gulf

We also support industrial motor sourcing requirements for:

• UAE

• Dubai

• Abu Dhabi

• Saudi Arabia

• Qatar

• Oman

• Kuwait

• Bahrain

For export and Gulf-region requirements, provide the required motor specification, quantity, application, voltage, frequency, RPM, mounting and optional features.

Why Choose We Tech Power Solutions Ltd?

• Siemens industrial motor sourcing support

• Industrial motor selection assistance

• Ahmedabad-based supplier

• MLFB and nameplate verification

• VFD-compatible motor selection

• Replacement motor support

• OEM and industrial project assistance

• India-wide supply support

• Gulf-region sourcing support

• Technical and commercial quotation assistance

Warranty

The current WTPSL product page states that the motors are covered under warranty for 12 months from commissioning or 18 months from dispatch, whichever is earlier, subject to proper use and applicable warranty conditions.

Warranty terms should be reconfirmed at the time of quotation/order for the specific motor supplied.

Frequently Asked Questions

What is the power rating of the Siemens IE3 335 HP motor?

The featured motor is rated at 250 kW, equivalent to approximately 335 HP.

What is the speed of the Siemens 335 HP motor?

The featured configuration is an 8-pole, 750 RPM motor.

What voltage does the Siemens IE3 335 HP motor use?

The WTPSL-listed configuration is rated at 415 V, 50 Hz, three phase.

Is the 335 HP Siemens motor suitable for VFD operation?

A VFD-suitable configuration is available. However, the exact motor and drive combination should be selected according to the required speed range, cooling, insulation, bearing protection and load characteristics.

What is the mounting type of this motor?

The featured configuration is B3 foot mounted.

What is the protection rating?

The featured motor is specified with IP55 protection and Class F insulation.

What is the model number of the Siemens 335 HP motor?

The current WTPSL specification lists 1PQ8 355-8PB70 for the 250 kW / 335 HP / 8-pole / 750 RPM configuration.

Can We Tech Power Solutions Ltd supply replacement motors?

Yes. Share the existing motor nameplate or complete MLFB along with the application and mounting details for identification and quotation support.

Need Siemens IE3 335 HP Motor Price or Replacement Support?

Looking for a Siemens 250 kW / 335 HP IE3 motor for a new industrial project, replacement or plant expansion?

Share your motor MLFB, nameplate photograph, required RPM, voltage, mounting type and quantity with We Tech Power Solutions Ltd for product identification and quotation support.