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Publication Title | Model C60/C65 neutral IGBT replacement

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Capstone Turbine Corporation • 21211 Nordhoff Street • Chatsworth • CA 91311 • USA Telephone: (818) 734-5300 • Facsimile: (818) 734-5320 • Website:

Service Bulletin SB0079

Date: From: Subject:


November, 2006

Capstone Technical Support

Model C60/C65 neutral IGBT replacement

All Capstone Model C60/C65 Stand Alone MicroTurbine systems, shipped between August, 2005 and July 5, 2006.

Safety Precautions

Only Capstone Authorized Serviced Providers (ASP’s) should open the MicroTurbine and other equipment connected to the MicroTurbine. The systems can include multiple sources of power. The fuel used by the MicroTurbine is flammable and explosive. Keep flames, cigarettes, sparks, and electrical arc-producing equipment away from the MicroTurbine. Observe and adhere to the Safety Instructions contained within the MicroTurbine documentation.


On the affected systems, the Neutral IGBT located in the LCM module, may fail without warning due to a manufacturing defect in the component. To prevent damage to the power electronics the suspect Neutral IGBT (518299-001) should be replaced per work instruction 440039-001. Below are instructions on how to locate and identify the potentially faulty component.


1. Remove the upper and lower side coves on right side of MicroTurbine.

Upper Side Cover

Lower Side Cover

450066-001 Rev A (November 2006) Page 1 of 4

This information is proprietary to Capstone Turbine Corporation. Neither this document nor the information contained herein shall be copied, disclosed to others, or used for any purposes other than the specific purpose for which this document was delivered. Capstone reserves the right to change or modify without notice, the design, the product specifications, and/or the contents of this document without incurring any obligation either with respect to equipment previously sold or in the process of construction.

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