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Cutler Hammer C306GN3 - Overload Relay 75A Thermal

Cutler Hammer
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Cutler Hammer C306GN3 is a three-pole NEMA thermal overload relay from the Freedom Series, designed to protect motors in industrial control circuits by sensing overcurrent conditions. It is rated for a fixed 75A maximum and minimum amperage, with a thermal trip unit that provides Class 20 protection and ambient temperature compensation for reliable operation. The relay weighs 5.19 lb and features a compact design for panel or starter replacement mounting, with selectable manual or automatic reset and integrated auxiliary contacts (1NO-1NC). It is UL Listed and CSA Certified, meeting NEMA and IEC standards for motor control applications. This overload relay is typically used in three-phase, full voltage non-reversing starters with NEMA size 1 and 2 enclosures.

Key Features & Specifications
  • Type: Overload Relay
  • Family: Freedom Series
  • Relay Style: Thermal
  • Amperage Minimum: 75
  • Amperage Maximum: 75
  • Weight: 5.19 lb
  • Number of Poles: 3
  • Mounting Type: Panel or starter replacement
  • Series/Frame: Freedom Series, NEMA Size 1 and 2
  • Trip Unit: Thermal, ambient compensated
  • Certifications: UL Listed, CSA Certified
  • Reset Type: Manual or automatic selectable
  • Auxiliary Contacts: 1NO-1NC
  • Application: Three-phase, full voltage non-reversing starters
  • Standards: NEMA, IEC
  • Protection: Class 20 trip time