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Transparent GE thermal unit CR123H157B with hook-and-loop closure

GE

GE CR123H157B Thermal Unit 13.60A 9.75A

SKU CH-2VTW-D2JGG

Thermal overload unit rated 9.75 A full-load current with 13.60 A trip setting

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Full-load protection at 9.75 A for reliable motor control
  • 60 A trip rating handles higher inrush currents safely
  • Compatible with Grainger 3HYJ6–3HYK2 for drop-in replacement
  • Fits CR101H and CR101Y series starters without modification
  • Transparent housing allows quick visual inspection of status

GE CR123H157B Thermal Unit

The GE CR123H157B is a thermal protection unit rated for a full load current of 9.75 A and a secondary rating of 13.60 A. It is designed for industrial electrical control and automation systems requiring reliable motor overload protection. The transparent housing allows visual inspection of internal components. This unit suits maintenance engineers and panel builders replacing specific thermal elements in existing motor starters.

Compatibility check before ordering

Verify that the existing starter uses a compatible manufacturer part number such as CR101H, CR101H1, CR101H11, CR101Y, CR101Y1 or CR101Y11. Cross-reference the Grainger part numbers 3HYJ6, 3HYJ7, 3HYJ8, 3HYJ9, 3HYK1 or 3HYK2 to confirm the correct trip class and physical fit. Ensure the application full load current does not exceed the 9.75 A rating of this unit.

Direct replacement for listed part numbers

This thermal unit directly replaces the manufacturer and Grainger part numbers listed above when the original device has failed or tripped irreversibly. The jump is worth it when the installed unit matches the exact model series and current rating, restoring proper overload protection without rewiring the starter. It is not suited for applications requiring a different trip current or a non-compatible starter frame.

How it compares

Measured against everything we stock in AV Accessories & Components, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 85% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameGE
Model nameCR123H157B
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

Does the GE CR123H157B thermal unit ship with mounting hardware or must it be purchased separately?

The supplied data lists only the thermal unit itself with a full-load current of 9.75 A and compatible part numbers CR101H, CR101H1, CR101H11, CR101Y, CR101Y1, CR101Y11; no mounting hardware is mentioned.

Which current rating should I select when the label shows both 13.60 A and 9.75 A?

The 13.60 A value appears in the model designation while the specification states a full-load current of 9.75 A; choose the 9.75 A rating for overload protection sizing.

What does the 9.75 A full-load current mean once the unit is installed in a motor starter?

It indicates the maximum continuous current the thermal unit will carry without tripping, so the motor’s running current should stay at or below 9.75 A for reliable operation.

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