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Transparent thermal overload unit, pack of three

Eaton

Eaton H2009B-3 Thermal Unit 4.55 to 7.4A PK3

SKU CH-D24A-T4XAS

Thermal overload unit covering 4.55 to 7.4 A for NEMA sizes 0 through 8, supplied in a pack of three

  • Product typeIndustrial Electrical Controls & Automation
  • Product colorTransparent
  • Thermal overload protection for motors rated 4.55 to 7.4 A
  • Trip Class 20 ensures coordinated overload response
  • Compatible with Series Freedom starters Frame Size G H J K
  • Suitable for NEMA Sizes 0 00 1 2 5 6 7 8
  • Pack of three units for multi-starter installations

Thermal overload unit for motor starters

The Eaton H2009B-3 thermal unit provides overload protection for NEMA size 0, 00, 1, 2, 5, 6, 7 and 8 starters. It suits Series Freedom frames G, H, J and K. The pack contains three units for multi-motor installations. It is not for buyers who need electronic trip units or different current ranges.

Trip Class 20 thermal operation

The thermal mechanism trips at Class 20 response to sustained overcurrent. It handles full-load currents from 4.55 to 7.4 A. No external power or control wiring is required for the protection function. The transparent housing allows visual inspection of the trip indicator.

Current range 4.55 to 7.4 A

Select this unit only when the motor nameplate current falls between 4.55 and 7.4 amperes. The NEMA starter size and frame must match the listed compatibility. Incorrect sizing will cause nuisance tripping or failed protection.

How it compares

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

Price $78.99
Pricier than about 69% of the 3,838 comparable items (median $41.99).

Specifications

Product
Brand nameEaton
Product typeIndustrial Electrical Controls & Automation
Product colorTransparent

Questions about this item

How do I install the Eaton H2009B-3 thermal unit into a Series Freedom starter, and what step is often missed?

Snap the unit into the overload relay base for NEMA Size 0, 00, 1, 2, 5, 6, 7, or 8 starters; the step often missed is verifying the motor full-load current falls within the 4.55 to 7.4 A range before closing the cover.

What maintenance or replacement will the thermal unit need later?

The thermal unit is a Trip Class 20 overload protector; after it trips on sustained overcurrent, the internal element is spent and the entire unit must be replaced — no user-serviceable parts inside.

What limit appears first when the Eaton H2009B-3 runs at full load continuously?

The thermal trip curve calibrated for 4.55 to 7.4 A is the first limit; sustained current at or above the motor's full-load rating will cause the unit to open the circuit per its Trip Class 20 timing.

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