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 7235 A-Series Double Pole Toggle - 15AMP - White [7235]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7235-series-double-pole-toggle-15amp-white-7235.webp)
![Blue Sea 7208 AC/DC Single Pole Magnetic World Circuit Breaker - 15AMP [7208]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7208-ac-dc-single-pole-magnetic-world-circuit-breaker-15amp-7208.webp)
![Blue Sea 7230 AC/DC Single Pole Magnetic World Circuit Breaker - 50AMP [7230]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7230-ac-dc-single-pole-magnetic-world-circuit-breaker-50amp-7230.webp)
![Blue Sea 7206 AC/DC Single Pole Magnetic World Circuit Breaker - 10AMP [7206]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7206-ac-dc-single-pole-magnetic-world-circuit-breaker-10amp-7206.webp)
![Blue Sea 7040187 - Series Thermal Circuit Breaker-60Amp [7040]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7040187-series-thermal-circuit-breaker-60amp-7040.webp)
![Blue Sea 7042 187-Series Circuit Breaker - Panel Mount 80A [7042]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7042-187-series-circuit-breaker-panel-mount-80a-7042.webp)
![Blue Sea 7233 A-Series Double Pole Toggle - 10AMP - White [7233]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-7233-series-double-pole-toggle-10amp-white-7233.webp)
![Blue Sea 5028 ST Blade Fuse Block w/ Cover - 6 Circuit without Negative Bus [5028]](https://www.nutcraftaccessories.com/wp-content/uploads/2026/10/blue-sea-5028-st-blade-fuse-block-w-cover-6-circuit-without-negative-bus-5028.webp)