2139
Amperage: 20A
Features:
- Weatherproof
- Can be used as Main, Branch, or 24 hour circuit protection
- Compact design enables high density circuit protection configurations
- Push-to-reset operation
- “Trip Free” design cannot be held “ON” during fault current condition
- Ignition protected – Safe for installation aboard gasoline powered boats
- Captive star lock washers meet requirements for anti-rotation and eliminate handling of small, easily dropped parts
WARNING: This product can expose you to chemicals including di(2-ethylhexyl)phthalate (dehp) which is known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
Specifications:
- Amperage: 20a
- Box Dimensions: 2″H x 3″W x 7″L WT: 0.2 lbs
- UPC: 632085021399

![Blue Sea 7312 COTS Military Grade A-Series 15 Amp [7312]](https://www.discounthardwarecenter.com/wp-content/uploads/2026/09/blue-sea-7312-cots-military-grade-series-15-amp-7312.webp)
![Blue Sea 7036 187 - Series Thermal Circuit Breaker - 30Amp [7036]](https://www.discounthardwarecenter.com/wp-content/uploads/2026/09/blue-sea-7036-187-series-thermal-circuit-breaker-30amp-7036.webp)

![Blue Sea 7441 UL-489 Circuit Breaker - 10A Flat Rocker [7441]](https://www.discounthardwarecenter.com/wp-content/uploads/2026/09/blue-sea-7441-ul-489-circuit-breaker-10a-flat-rocker-7441.webp)
![Blue Sea 7198 285-Series Circuit Breaker Panel Mount Adapter [7198]](https://www.discounthardwarecenter.com/wp-content/uploads/2026/09/blue-sea-7198-285-series-circuit-breaker-panel-mount-adapter-7198.webp)


![Blue Sea 7233 A-Series Double Pole Toggle - 10AMP - White [7233]](https://www.discounthardwarecenter.com/wp-content/uploads/2026/09/blue-sea-7233-series-double-pole-toggle-10amp-white-7233.webp)