N3 Interchangeable Replacement Motors for Alstom and GEC Alsthom Installations

Electrically and mechanically interchangeable replacements

CHASE International supplies replacement N3 induction motors engineered to be electrically and mechanically interchangeable with the installed unit, where the application requires a direct match to critical interfaces and performance.

N3 is a legacy series reference associated with heritage brands including GEC Alsthom and Alstom (now part of GE). This reference is used only to identify compatibility with installed equipment.

N3 Interchangeable Replacement Motors

Heritage references

Where applicable, heritage reference support is provided via Quartzelec

Chase International Limited is an independent supplier. OEM names and series references are used only to identify compatibility with installed equipment.

What electrically and mechanically interchangeable means

Interchangeable means the replacement is engineered to align critical interface and performance requirements so it can integrate with existing systems.

  • Mounting, footprint and shaft interfaces
  • Terminal arrangement and cable entry
  • Cooling method and protection requirements
  • Duty and performance alignment to the existing driven equipment
  • Starting method compatibility and thermal limits
  • Instrumentation and auxiliary interfaces

Each application is confirmed during technical review, and any deviations are advised early.

How we reduce replacement risk

Technical capture

  • Installed motor data capture and interface review
  • Duty confirmation including starting method and operating environment

Engineering and documentation

  • Drawings for approval
  • Routine test results
  • Technical data sheets and performance information where required
  • Installation and commissioning notes

Project delivery support

  • Clear document pack for approvals and handover
  • Practical approach to minimise downtime during replacement

Typical reference statement

Chase has supplied multiple HV and MV induction motor replacements, including repeat orders, into a large Asia based utility fleet. Typically, units are 3.3, 6.6 or 11 kV machines in the 250 kW to 10 MW range. Supply includes drawings for approval, technical data sheets and performance curves, routine test results, and installation manuals to support an efficient change out.

What we need from you to quote quickly:

  • Nameplate photo and motor tag reference
  • Basic duty details: kW, kV, poles, speed, starting method
  • Photos of terminal box, mounting, coupling end and non drive end
  • Any drawings or data sheets available
  • Required delivery date and installation timing


Supported N3 frame sizes and configurations

Coverage is broader than the examples shown.
If your frame or rating is not listed, send the nameplate and we will confirm compatibility.

Please expand the list below and use CTRL + F to search for a specific frame type.

N3 compatibility examples (click to expand)
  • N31HXC400J/2CH/5
    N31HXC560LR/4CH/5 
    N31HXC630G/6GV/5
    N31HXC630G2C
    N31HXC710 J4C 
    N31HXC710C/4GV/5
    N31HXC710L4C
    N31HXC710L4C 
    N31HXC800K/12GV/5 
    N31HXC800L/12GV/5
    N31HXC900E/8GV/5
    N31HXC900E/8GV/5 
    N31HYC1000K4C 
    N31HYC710
    N31HYC800J4C
    N31HYC900L4C
    N31HYCP630K 
    N31NXC 710G/4CH/5
    N31NXC450G/4GV/5 
    N31NXC630K/4GH/5 
    N31NXC710F/14GV/5
    N31NXC710H/8GH/5
    N3HX 560 L4   
    N3HX560K6/8   



      
  • N31NXC800L/14CV/5
    N31NYC 560L/4GH/5
    N31NYC 900L/8GH/5
    N31NYC560G/6GH/5 
    N31RXC450K/4GV/5
    N31RXC560
    N31RXC560K/10GV/5 
    N31RXC560K/4GH/5 
    N31RXC560K/4GV/5 
    N31RXC630G/8GH/5
    N31RXC710H/10GH/5 
    N31RXC800L/4CH/6 
    N31RXC900J/18CV/5
    N31RXS630L
    N31RYC 900
    N31RYC1120G20CV
    N31RYC560L/4CV/5 
    N31RYC630F
    N31RYC630F/4GH/6
    N31RYC800
    N31RYC800_10G
    N31RYC900L12C 
    N32RXC630L/12CH/5
    N3HX 400J2C 
  • N3PX400J2
    N3PX450K6  
    N3PX560GR4    
    N3PX630F12/V1
    N3PXC1250F20V    
    N3PXC560F4G
    N3PXC560GR4 
    N3PXC560L6   
    N3PXC710H4  
    N3RX450G4  
    N3RX560GR6 
    N3RXC560LR4 
    N3RYC560
    N3RYC560E4G
    N3RYC630
    N3RYC630J4C/V1
    N3RYC630L10G
    N3HYC800K4C         
    N3NXC710H4C    
    N3NXC900E20/V1 
    N3HX710J4C              
    N3HXC800L/12
    N3HYC1000A16V1 

Why Choose Chase International?

  • Electrically and mechanically interchangeable replacements engineered to suit installed interfaces
  • Practical approach focused on outage risk reduction
  • Documentation pack to support approvals and commissioning
  • Competitive alternative to OEM supply

Send a nameplate photo and we will come back with the best replacement option and a quotation

Chase International Limited is an independent supplier. OEM names and series references are used only to identify compatibility with installed equipment.