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Transparent Eaton FH20 thermal overload unit, trip class 20

Eaton

Eaton FH20 Thermal Unit Trip Class 20

SKU CH-H53K-QR3PS

Provides thermal overload protection for motor starters with a trip class 20 rating and current ranges of 1.35 to 1.47 A and 1.56 to 1.71 A

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection rated Trip Class 20
  • Covers full-load currents from 1.35 to 1.71 amperes
  • Fits NEMA sizes 0, 1 and 2 motor starters
  • Compatible with Series A200 and B100 controllers
  • Transparent housing allows visual inspection of the element

Thermal Overload Protection Unit

The Eaton FH20 is a thermal unit rated for Trip Class 20 and designed to provide overload protection in motor control circuits. It suits maintenance engineers and panel builders who need a direct replacement for compatible starters.

Transparent Housing and Series Compatibility

The transparent colour allows visual inspection of the internal mechanism without removing the cover. It is compatible with Series A200 and B100 starters and matches the Grainger part numbers 11Z488 through 11Z497 for cross-reference identification.

Full Load Current and NEMA Size Check

Before ordering, verify that the motor full load current falls within the 1.35 to 1.47 A or 1.56 to 1.71 A ranges. Confirm the starter carries a NEMA Size 0, 1 or 2 rating to ensure correct fit and coordination.

Highlights

  • Thermal overload protection rated Trip Class 20
  • Covers full-load currents from 1.35 to 1.71 amperes
  • Fits NEMA sizes 0, 1 and 2 motor starters
  • Compatible with Series A200 and B100 controllers
  • Transparent housing allows visual inspection of the element

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

What trip class does the Eaton FH20 thermal unit use, and what full-load current ranges does it cover?

The unit is rated Trip Class 20 and covers full-load currents of 1.35 to 1.47 A and 1.56 to 1.71 A.

Which NEMA sizes and compatible series does the FH20 fit?

It fits NEMA Size 0, 1 and 2 and is compatible with Series A200 and B100 starters.

How is the thermal unit installed, and what step is often missed?

Snap the unit into the overload relay block on the starter; the step often missed is verifying the trip-class marking matches the motor nameplate before powering up.

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