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Transparent thermal overload unit with current markings

Eaton

Eaton MSH6-6A Thermal Unit 5.27 to 5.83 A

SKU CH-AER6-VP5BH

Provides thermal overload protection at 5.27 to 5.83 A with Trip Class 20 for NEMA sizes 1, 3, 4, and 5

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection for motors with 5.27 to 5.83 A full-load current
  • Trip Class 20 rating provides timed response to sustained overcurrent conditions
  • Compatible with NEMA Size 1, 3, 4 and 5 motor starters
  • Fits Eaton MS series and listed MST model numbers
  • Transparent housing allows visual inspection of internal components

Eaton MSH6-6A Thermal Unit

The Eaton MSH6-6A is a thermal overload protection unit designed for industrial electrical control panels. It serves maintenance engineers and panel builders who need reliable motor circuit protection in automation systems. This new component integrates directly with compatible Series MS starters and contactors.

Trip Class 20 with 5.27 to 5.83 A range

The unit operates at Trip Class 20 and covers a full-load current window of 5.27 to 5.83 amperes. It handles motors within this band and trips on sustained overload to protect windings. The device reaches its limit outside this current range and is not suited for higher or lower full-load values.

Replaces compatible thermal units in Series MS

This thermal unit replaces worn or damaged elements in Eaton Series MS devices including models MST01 and MST02 with various suffixes. The upgrade is worthwhile when the existing unit has tripped repeatedly or shows calibration drift. It does not fit starters outside the listed NEMA Size 1, 3, 4, 5 compatibility.

Highlights

  • Thermal overload protection for motors with 5.27 to 5.83 A full-load current
  • Trip Class 20 rating provides timed response to sustained overcurrent conditions
  • Compatible with NEMA Size 1, 3, 4 and 5 motor starters
  • Fits Eaton MS series and listed MST model numbers
  • Transparent housing allows visual inspection of internal components

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

Will this thermal unit work with my existing MST02 overload relay?

Yes, the MSH6-6A is compatible with the MST02 series and other listed models such as MST01, MST01AH, and MST02DN.

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

The unit operates on Trip Class 20 thermal overload protection and will trip when current exceeds the 5.27 to 5.83 A full-load range.

Does the package include the overload relay or just the thermal unit?

Only the thermal unit is supplied; a compatible Series MS overload relay must be purchased separately.

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