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Transparent thermal unit with current markings FH29 3.69-4.03A

Eaton

Eaton FH29 Thermal Unit 3.69-4.03A

SKU CH-N64W-E7ZM2

A thermal overload unit rated 3.69 to 4.03 A with Trip Class 20 for NEMA sizes 0, 1 and 2 motor starters

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Trip Class 20 provides reliable motor overload protection
  • Current range 3.69 to 4.03 A suits precise applications
  • Compatible with NEMA sizes 0, 1 and 2
  • Works with Series A200 and B100 starters
  • Transparent housing allows quick visual inspection

Eaton FH29 Thermal Unit purpose

The Eaton FH29 Thermal Unit provides overload protection for motor starters in industrial control panels. It operates at Trip Class 20 and covers full-load current ranges of 3.12 to 3.42 A and 3.61 to 3.95 A. The transparent housing allows visual inspection of the element. It is designed for NEMA Size 0, 1, and 2 starters.

Suitable for NEMA 0-2 starters

This unit suits maintenance teams replacing thermal elements in Series A200 or B100 motor starters where the full-load current falls within the stated ranges. It is not for applications requiring electronic overload relays or adjustable trip classes. Installations using different NEMA sizes or current ranges must select a different thermal unit.

Compatible with Grainger part numbers

The thermal unit cross-references to Grainger part numbers 11Z488, 11Z489, 11Z49, 11Z491, 11Z492, 11Z493, 11Z494, 11Z495, 11Z496, and 11Z497. This compatibility simplifies identification when ordering replacements from existing inventory records. No additional accessories or software are included with the unit.

How it compares

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Price $46.99
Typical for this category: the median of 3,838 items is $41.99.

Specifications

Product
Brand nameEaton
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

Which motor starter series must I already have for the FH29 thermal unit to fit?

The FH29 thermal unit is compatible with Series A200 and B100 motor starters, so one of those series must be installed for the unit to mount and operate correctly.

Will the FH29 thermal unit coordinate with an existing NEMA Size 1 starter?

Yes, the FH29 is rated for NEMA Size 0, 1 and 2 starters, so it will work with a NEMA Size 1 starter you may already be using.

How can I verify the FH29 thermal unit is protecting the circuit after installation?

The unit carries Trip Class 20 and a full-load current range of 3.69 to 4.03 A; if the motor current exceeds that range the thermal element will trip, confirming it is functioning as intended.

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