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Transparent thermal overload unit FH26 trip class 20

Eaton

Eaton FH26 Thermal Unit Trip Class 20

SKU CH-X2QF-N92ZH

Thermal overload unit, trip class 20, covers 2.36–2.58 A and 2.73–2.99 A for NEMA sizes 0–2

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection rated Trip Class 20
  • Full-load current range 2.36 to 2.58 A supported
  • Also covers 2.73 to 2.99 A operating range
  • Compatible with NEMA Size 0, 1, 2 starters
  • Fits Series A200 and B100 contactor models

Eaton FH26 Thermal Unit

The Eaton FH26 is a thermal overload unit rated Trip Class 20 for industrial motor starters. It protects NEMA Size 0, 1 and 2 contactors by interrupting power when current exceeds the calibrated range. Electrical contractors and maintenance engineers select it for replacement or new panel builds requiring Class 20 thermal response.

Compatibility check

Verify that the motor full-load current falls within 2.36 to 2.58 A or 2.73 to 2.99 A before ordering. Confirm the starter is a Series A200 or B100 model, as the unit mounts only on those frames. Cross-reference the Grainger part numbers 11Z488 through 11Z497 to ensure the correct heater table match for the application.

Build and mounting

The transparent housing lets technicians visually confirm trip status without removing the cover. The unit snaps directly onto compatible NEMA contactors, so no extra brackets or wiring harnesses are needed. Its thermal mechanism resets manually after a fault, providing a clear tactile indication that the overload condition has been cleared.

Highlights

  • Thermal overload protection rated Trip Class 20
  • Full-load current range 2.36 to 2.58 A supported
  • Also covers 2.73 to 2.99 A operating range
  • Compatible with NEMA Size 0, 1, 2 starters
  • Fits Series A200 and B100 contactor models

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What comes in the box and what do I need to buy separately?

The Eaton FH26 thermal unit is supplied as a single component; a compatible Series A200 or B100 overload relay must be purchased separately to complete the installation.

Which current range should I select for my motor?

Choose the 2.36–2.58 A version for motors with a full-load current in that band, or the 2.73–2.99 A version for motors in the higher band; both suit NEMA sizes 0, 1 and 2.

What does Trip Class 20 mean once the unit is installed?

Trip Class 20 indicates the thermal unit will trip within 20 seconds under a sustained overload, providing standard protection for general-purpose motors.

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