Important Product Safety Bulletin January 15, 2008

Eaton/ Cutler-Hammer Brand Labeled Rotary and Toggle Disconnect Switches

A supplier defect in the disconnect switch could allow one pole to remain energized when the switch is in the OFF position.

To: Valued Customer

You are receiving this notification because our records indicate that we shipped a product (loose switch or enclosed switch) in the suspect date range to you. Please read through this bulletin and take the appropriate action. If you are not the end customer for this product and have subsequently shipped this product to a 3rd party, then we request that you forward this notice.

Eaton Corporation received notification from our supplier of Rotary and Toggle disconnect switches that it has identified a product integrity issue on specific switches it manufactured from Week 1 of 2007 to Week 50 of 2007. Eaton is working diligently with the distributor of these products to comply with the supplier’s instructions to replace the defective switches. This potential defect could represent a safety issue. Your immediate attention is needed to replace this switch, thus insuring safe operation.

The suspect switch catalog numbers and enclosed switch catalog numbers are listed in the table in Appendix A, and may have been sold through Eaton warehouses or satellites. This field action only affects the 60A, 80A, 100A and 125A switches or enclosures containing these switches.

Appendices B and C of this letter contain instructions for determining if you have a switch or enclosed switch that is suspect. If you have a loose or enclosed switch that has not been installed, please return it immediately for replacement. See section “How to Obtain No-charge Replacements”.

Caution DO NOT Attempt to identify the switch without ensuring that the upstream protective device is in the “OFF” position de-energizing the disconnect switch.

The defect for the particular Rotary and Toggle disconnect switches supplied to Eaton and identified in Appendix A is directly related to a defect in a component contained within the switch. For some of the switches our supplier manufactured from Week 1 to 50 of 2007, a plastic plunger internal to the switch may fracture over time. If this happens, there is the potential that the plunger will no longer open one pole of the switch, leaving the pole energized when the switch is in the open position.

Subsequently, a user could move the disconnect handle of an enclosure containing the suspect switch to the “OFF” position and if the switch is defective, the contacts could remain in a closed condition. Thus, the load side of the switch would remain energized despite the visual indication of the enclosure disconnect handle indicating that the switch is “OFF”.

DANGER This condition could result in death, serious personal injury or property damage. Follow standard switch installation procedures to inspect and/or replace.

In order to remedy this condition, our supplier has indicated that you must replace the potentially defective switch or A/C disconnect switch assembly and return it to Eaton Corporation. Until the replacement switch or enclosed switch assembly is installed, you must electrically verify that the switch is not energized while in the open or “OFF” position every time the switch or enclosed switch assembly is operated. DO NOT ASSUME THAT THE POWER IS DISCONNECTED.

Appendix B outlines how a switch can be determined whether or not it is from the suspect batch.

Appendix C outlines how an A/C disconnect switch assembly can be validated as being potentially defective.

Caution: DO NOT Attempt to replace without de-energizing the switch via an upstream device.

If you are not the end customer for this product and have subsequently shipped this product to a 3 rd party, then we ask that you forward this notice.

How to Obtain No-charge Replacement

PURCHASED DIRECTLY FROM EATON - If you purchased this recalled product directly from Eaton, ask your Eaton service provider to process the necessary warranty replacement claims through normal service channels to provide a no charge warranty replacement based on Catalog Number and Quantity of nonconforming product that must be replaced.

PURCHASED FROM A NON-EATON DISTRIBUTOR OR OEM - Contact your supplier and ask for replacement/s for the recalled product by Catalog Number, and Quantity. Your distributor or OEM will make the necessary arrangements (a warranty claim) with EATON for replacement parts.

SOURCE UNKNOWN – If you have nonconforming product and need replacement/s but do not know how to contact the appropriate service channel, call 1(800) 210-6208 for assistance.

The potentially serious consequence of this defect requires us to confirm remedial action has been completed and disclosed to our supplier. Please complete the form in Appendix D and FAX it to theProduct Integrity Center at 412-787-6540, or you may scan the completed form and e-mail to MichaelCValenta@eaton.com.

We regret the inconvenience this issue will cause, but Eaton’s commitment to our partners and customers to provide a quality product requires we take this action. Contact us if you have any questions or concerns and thank you in advance for your cooperation and support.

Regards,

PCSO Product Integrity Center