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Transparent Eaton FH24 thermal unit, compact rectangular form factor

Eaton

Eaton FH24 Thermal Unit 2.33-2.54A Transparent

SKU CH-B4RV-2DH8Q

Thermal overload unit rated 2.33 to 2.54 A, Trip Class 20, compatible with NEMA sizes 0, 1, 2 and Series A200, B100 starters

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Reliable overload protection with Trip Class 20 thermal response
  • Covers 1.96 to 2.54 A full-load current range
  • Fits NEMA Size 0, 1 and 2 starters
  • Compatible with Series A200 and B100 contactors
  • Transparent housing allows quick visual inspection

Thermal unit for motor protection

The Eaton FH24 thermal unit provides overload protection for industrial motor starters. It covers full-load current ranges of 1.96 to 2.15 A and 2.27 to 2.48 A with a Trip Class 20 response. The transparent housing allows visual inspection of the element. It fits NEMA Size 0, 1 and 2 starters.

Transparent housing and series compatibility

The clear casing lets maintenance staff confirm element condition without removal. It mounts directly into compatible Series A200 and B100 starters. The unit matches Grainger part numbers 11Z488 through 11Z497 for straightforward identification during replacement.

Replaces worn thermal elements in existing starters

This unit restores overload protection when the original element has tripped or drifted out of calibration. The upgrade is worth it when the starter frame is sound but the thermal element no longer holds its rated current band. Buyers needing electronic overload relays or communication-enabled protection will not find those features here.

How it compares

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

Price $48.99
Pricier than about 55% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameEaton
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

What trip class does the FH24 thermal unit use, and what overload current range does it cover?

The FH24 is a Trip Class 20 thermal unit covering full-load currents from 1.96 to 2.15 A and 2.27 to 2.48 A.

Which NEMA starter sizes and series does the FH24 fit?

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

How is the FH24 installed, and what mistake should be avoided?

Snap the transparent thermal unit into the overload relay block matching the NEMA size; the common error is using a unit whose current range does not match the motor's full-load amperage.

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