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Transparent thermal overload unit with printed ratings

Eaton

Eaton FH28 Thermal Unit 3.37 to 3.68A

SKU CH-VZV3-ZQ830

Thermal overload unit rated 3.37 to 3.68 A with trip class 20 for NEMA sizes 0, 1 and 2

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection for motor circuits
  • Trip class 20 ensures reliable response to sustained overcurrents
  • Adjustable full-load current range 3.37 to 3.68 A
  • Compatible with NEMA sizes 0 1 2 starters
  • Fits Series A200 and B100 control devices

Eaton FH28 Thermal Unit

The Eaton FH28 thermal unit provides overload protection for motor starters in the 3.37 to 3.68 ampere range. It fits NEMA Size 0, 1 and 2 starters and is compatible with Series A200 and B100 equipment. The transparent housing allows visual inspection of the trip mechanism.

Trip Class 20 response time

Trip Class 20 defines the maximum time the unit allows an overload before tripping, which suits general-purpose motor loads with moderate acceleration. The thermal mechanism reacts to sustained overcurrent rather than short inrush spikes. It covers two overlapping full-load current bands from 2.84 to 3.6 amperes.

Replaces worn or mismatched heater elements

This unit replaces original thermal units that have tripped repeatedly or no longer match the motor nameplate current. It upgrades installations where the previous element covered a different ampere range. The change is worth it when the motor full-load current falls between 3.37 and 3.68 amperes.

Highlights

  • Thermal overload protection for motor circuits
  • Trip class 20 ensures reliable response to sustained overcurrents
  • Adjustable full-load current range 3.37 to 3.68 A
  • Compatible with NEMA sizes 0 1 2 starters
  • Fits Series A200 and B100 control devices

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Should I pick the 3.37 to 3.68 A range or the 2.84 to 3.11 A range for my motor?

Choose the range that covers your motor's full-load current; this FH28 unit is rated for 3.37 to 3.68 A.

What does the 3.37 to 3.68 A rating mean once the unit is installed?

It defines the full-load current band the thermal element protects; the unit trips on overload within that 3.37 to 3.68 A window.

Which NEMA starters does the FH28 thermal unit fit?

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

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