Product Description
Designated as Eaton’s Cutler-Hammer Types GMCP and HMCP, the instanta
neous-only Motor Circuit Protector (MCP) is available in ratings from 3 A
to 1200 A for motor starter sizes 0 through 8. The MCP is designed to
comply with the applicable requirements of Underwriters Laboratories
Standard UL 489. Canadian Standards Associa tion Standard C22.2 No. 5.1.
and International Electrotechnical Commission Recommendations IEC 157-1.
An innovative design of internal components allows higher MCP-starter
combination interrupting ratings.

The MCP is marked to permit proper electrical application within the
assigned equipment ratings. The MCP is a recognized component (UL File
E7819) and complies with the applicable requirements of Underwriters
Laboratories Standard UL 489. It is also designed to comply with the applica
ble requirements of Canadian Standards Association Standard C22.2
No. 5.1. International Electrotechnical Commission Recommendations
IEC 157-1. and nameplates bear the CE marking.
Note: Interrupting ratings are dependent on starter it is used with.
Product Selection
This information is presented only as an aid to understanding catalog numbers.
It is not to be used to build catalog numbers for circuit breakers or trip units.
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