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Three transparent thermal overload units in a pack

Eaton

Eaton H2006B-3 Thermal Unit 1.79 to 2.9A Trip Class 20 Pack of 3

SKU CH-HHW0-RHHVY

Thermal overload unit for NEMA motor starters, adjustable 1.79 to 2.9 A trip range, Trip Class 20, pack of three

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection for 1.79–2.9 A circuits
  • Trip Class 20 rating matches motor start-up profiles
  • Fits NEMA sizes 0 through 8 starters
  • Compatible with Series Freedom frame sizes G to Z
  • Pack of three units simplifies multi-starter maintenance

Eaton H2006B-3 Thermal Unit

The Eaton H2006B-3 thermal unit provides overload protection for motor starters in industrial electrical control systems. It covers a full-load current range of 1.79 to 2.9 A and carries a Trip Class 20 rating. The pack contains three identical units for multi-starter installations.

Thermal operation in normal use

Each unit uses a thermal overload mechanism calibrated for Trip Class 20 response. Under typical operating currents the element remains stable and dissipates heat without nuisance tripping. The transparent housing allows visual inspection of the internal components during routine checks.

Behaviour under sustained load

When current exceeds the set range continuously the thermal element heats progressively and opens the control circuit within the Class 20 time curve. This protects downstream wiring and motor windings from prolonged overload conditions. The units are compatible with NEMA sizes 0, 00, 1, 2, 5, 6, 7, 8 and Series Freedom frames G through Z.

Highlights

  • Thermal overload protection for 1.79–2.9 A circuits
  • Trip Class 20 rating matches motor start-up profiles
  • Fits NEMA sizes 0 through 8 starters
  • Compatible with Series Freedom frame sizes G to Z
  • Pack of three units simplifies multi-starter maintenance

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

How do I install the H2006B-3 thermal unit into a Series Freedom starter, and what step is commonly missed?

Snap the unit into the overload relay base matching the NEMA size label; the step often missed is verifying the frame-size letter (G through Z) on the starter matches the unit before locking it in.

What maintenance or replacement will the H2006B-3 thermal unit need later?

The thermal element is non-repairable; after any overload trip or if the 1.79 to 2.9 A calibration drifts, replace the entire unit — keep the spare two from the pack for quick change-out.

What limit appears first on the H2006B-3 thermal unit during sustained overload?

Trip Class 20 defines the limit: the unit must open within 20 seconds at six times the 2.9 A maximum rating, so sustained overcurrent hits the thermal trip curve before any other threshold.

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