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Transparent Eaton FH37 thermal unit trip class 20

Eaton

Eaton FH37 Thermal Unit Trip Class 20

SKU CH-JMVY-7SP41

Thermal overload unit rated Trip Class 20 for 6.5 to 8.2 A full-load current in NEMA sizes 0 to 2 starters

  • TypeIndustrial Electrical Controls & Automation
  • ColorTransparent
  • Trip Class 20 provides reliable overload protection
  • Full-load current range 6.5 to 8.2 A covers multiple motor sizes
  • Compatible with NEMA sizes 0, 1 and 2 starters
  • Fits Eaton Series A200 and B100 contactors
  • Transparent housing allows quick visual inspection

Eaton FH37 Thermal Unit Trip Class 20

This Eaton FH37 thermal unit provides overload protection for motor starters in Trip Class 20. It suits maintenance teams and panel builders who need a direct replacement for compatible NEMA Size 0, 1 or 2 starters.

Thermals noise and power draw in normal use

The thermal mechanism trips at the rated Class 20 curve when current exceeds the 6.5 to 7.1 A or 7.6 to 8.2 A full-load ranges. It operates passively without a fan so acoustic output is negligible and it adds no extra power draw to the control circuit.

What the bundled accessories

No accessories or software are bundled with this thermal unit. The transparent housing allows visual inspection of the trip indicator. Buyers who need mounting hardware or a different trip class must source those items separately.

Highlights

  • Trip Class 20 provides reliable overload protection
  • Full-load current range 6.5 to 8.2 A covers multiple motor sizes
  • Compatible with NEMA sizes 0, 1 and 2 starters
  • Fits Eaton Series A200 and B100 contactors
  • Transparent housing allows quick visual inspection

Specifications

BrandEaton
TypeIndustrial Electrical Controls & Automation
ColorTransparent

Questions about this item

How do I install the Eaton FH37 thermal unit in a NEMA Size 1 starter, and what step is often missed?

Match the 6.5 to 7.1 A or 7.6 to 8.2 A full-load current range to the motor nameplate, then snap the unit into the Series A200 or B100 overload relay; the step often missed is verifying the correct current band before seating the unit.

What maintenance or replacement will the Eaton FH37 thermal unit need after extended service?

The thermal element is a one-trip device; after an overload trip the entire FH37 unit must be replaced — no field-replaceable parts or recalibration are provided.

At what sustained current does the Trip Class 20 rating of the Eaton FH37 become the limiting factor?

Trip Class 20 means the unit must trip within 20 seconds at six times the rated current; sustained loads above the selected 6.5–7.1 A or 7.6–8.2 A range will cause the thermal element to open first.

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