Description
The Cutler Hammer-Eaton C320KGS21 is a one normally closed (NC) auxiliary contact designed for use with a broad range of NEMA and IEC contactors, as well as definite purpose contactors. It is an essential add-on component for expanding the control and monitoring capabilities of your existing contactor installations in commercial and industrial HVAC applications.
Product Overview
This auxiliary contact block provides a single normally closed contact configuration, allowing it to be integrated into control circuits for status indication, interlocking, or safety shutdown functions. Its wide compatibility range makes it a versatile solution for technicians and engineers working across multiple contactor platforms.
Key Features
- One normally closed (NC) auxiliary contact configuration
- Compatible with NEMA contactor sizes 3 through 5
- Compatible with IEC contactor sizes L through S
- Compatible with definite purpose contactors rated 120A to 360A
- Designed for seamless add-on installation to existing Cutler Hammer-Eaton contactors
- Suitable for use in commercial and industrial HVAC control circuits
- Enables status indication, interlocking, and safety control functions
Applications
- HVAC motor control and protection circuits
- Commercial refrigeration contactor control panels
- Industrial motor starter auxiliary circuits
- Definite purpose contactor installations in air conditioning and heating equipment
Compatibility
- NEMA Sizes: 3, 4, 5
- IEC Sizes: L, M, N, P, Q, R, S
- Definite Purpose Contactors: 120A – 360A







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