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Transparent Eaton FH43 thermal unit with current rating markings

Eaton

Eaton FH43 Thermal Unit 12.30-13.50A Video Accessory

SKU CH-P4PY-JG2XA

Provides thermal overload protection for 12.30 to 13.50 A circuits with trip class 20, compatible with Series A200 and B100 starters

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Thermal overload protection for motor circuits up to 13.50 A full-load current
  • Trip Class 20 rating provides standard overload response for industrial starters
  • Compatible with Eaton Series A200 and B100 contactors for direct replacement
  • Transparent housing allows visual inspection of the thermal element
  • Suitable for NEMA Size 0, 1 and 2 starter applications

Eaton FH43 Thermal Unit 12.30-13.50A

The Eaton FH43 thermal unit provides overload protection for motor starters in the 12.30 to 13.50 ampere range. It suits maintenance technicians and panel builders fitting Series A200 or B100 contactors in industrial control panels.

Trip Class 20 sustained response

Trip Class 20 means the unit tolerates temporary inrush but opens on prolonged overcurrent, matching the 11.4 to 12.4 A and 13.2 to 14.3 A full-load bands. The thermal element reacts to heat buildup rather than a single peak, so nuisance trips stay low during normal start-up cycles.

Direct replacement for compatible starters

The unit drops into NEMA Size 0, 1 or 2 starters that accept the listed Grainger part numbers from 11Z488 through 11Z497. Mis-match occurs when the contactor series or NEMA size falls outside that range, so verify the starter nameplate before ordering.

Highlights

  • Thermal overload protection for motor circuits up to 13.50 A full-load current
  • Trip Class 20 rating provides standard overload response for industrial starters
  • Compatible with Eaton Series A200 and B100 contactors for direct replacement
  • Transparent housing allows visual inspection of the thermal element
  • Suitable for NEMA Size 0, 1 and 2 starter applications

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

How much heat does the Eaton FH43 thermal unit produce when running continuously at 13.50 A?

The unit is a thermal overload protector rated for 12.30 to 13.50 A full-load current; it trips on excess heat rather than generating significant heat itself during normal operation.

Which motor starter series must I already own for the FH43 to fit and function?

It is compatible with Eaton Cutler-Hammer Series A200 and B100 starters in NEMA sizes 0, 1 and 2.

Will the FH43 work with my existing Series A200 starter that uses a Class 10 trip curve?

The FH43 is a Trip Class 20 device, so it reacts more slowly than a Class 10 unit; verify the starter’s required trip class before installing.

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