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Three transparent thermal units in a pack

GE

GE CR123H680A Thermal Unit 5.9 A 3-Pack

SKU CH-J9PX-2T26C

Thermal overload unit rated at 5.9 A, compatible with CR101H and CR101Y series motor starters

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Reliable motor protection with 5.9 A full-load rating
  • Direct replacement for Grainger parts 3HYJ6 through 3HYK2
  • Compatible with CR101H and CR101Y series starters
  • Transparent housing allows quick visual inspection
  • Three-unit pack supports multi-motor installations

GE CR123H680A Thermal Unit 5.9 A 3-Pack

This pack contains three thermal overload units rated at 5.9 A each. They protect industrial motor starters and contactors from sustained overcurrent conditions. The units suit maintenance teams and panel builders who need direct replacements for existing GE CR101H or CR101Y series components.

Sustained load behaviour

Each unit trips when current exceeds 5.9 A for a period defined by its thermal curve, preventing damage during prolonged overloads rather than momentary inrush. The transparent housing allows visual confirmation of the trip indicator without removing the cover. No adjustable dials or electronic settings are present; the response characteristic is fixed by the bimetal element.

Installation and common issues

The units snap into compatible GE CR101 starters using the original mounting footprint, requiring no wiring changes when the part numbers match. A frequent error is selecting a unit by frame size alone instead of verifying the exact 5.9 A rating against the motor nameplate. Another issue arises when installers assume cross-brand compatibility; these units only fit the listed Grainger 3HYJ and 3HYK part numbers.

Highlights

  • Reliable motor protection with 5.9 A full-load rating
  • Direct replacement for Grainger parts 3HYJ6 through 3HYK2
  • Compatible with CR101H and CR101Y series starters
  • Transparent housing allows quick visual inspection
  • Three-unit pack supports multi-motor installations

Specifications

BrandGE
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Does the CR123H680A Thermal Unit generate noticeable heat or noise when running continuously at 5.9 A?

The thermal unit is designed to operate at a full load current of 5.9 A within compatible motor starters. It functions as a protective element that responds to heat from motor current, so it does not contain a fan or moving parts that produce noise.

Which motor starter models must I already own for this 3-pack to work?

These units are compatible with GE CR101H, CR101H1, CR101H11, CR101Y, CR101Y1 and CR101Y11 starters. They also cross-reference to Grainger part numbers 3HYJ6 through 3HYK2.

Will the CR123H680A units fit alongside older CR101 series starters already installed in my panel?

Yes, the thermal units are built for the CR101H and CR101Y starter families. They match the form factor and electrical rating of 5.9 A for direct replacement in those existing installations.

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