AUTOMATIC RESETTING BI- METALLIC DISC, SNAP ACTING
This phenolic-housed unit attaches to any metal surface. When that surface meets or exceeds certain temperature, the SPST bi- metallic element goes open circuit, i.e. unit is normally closed,
opening on temperature rise.
- The unit resets automatically when temperature falls below specified limit.
- Ideal for any electrical item that needs thermal protection.

Specifications:
- Operating: +/- 5°C
- Reset: 10°C min. below opening temp.
- Contact Ratings: 10A 240VAC 10,000 Cycles
- Contact Resistance: 50 milliohm
- Connection: 1/4 (6.35mm)
- Quick connect tabs
- Diectric Strength: 1500VAC 1 minute
- Surface Contact Area: 50mm squared (16mm dia.)
- UL, CSA Approved

Opening Reclosing
Temperature Temperature (approx)
60°C 40°C
SKU AM-ST3821
Model # ST3821
Barcode # 9319236837344

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