![Sea-Dog Thermal AC/DC Circuit Breaker - Splash Guard Boot [420839-1]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/sea-dog-thermal-ac-dc-circuit-breaker-splash-guard-boot-420839-1.webp)
Description
Thermal AC/DC Circuit Breaker – Splash Guard Boot
Thermal AC/DC Circuit Breakers are designed to protect an electrical circuit from damage caused by excess current. Vibration and shock resistant these push-to-reset circuit breakers are an economical alternative to magnetic breakers. Unlike sacrificial fuses they have the advantage of being resettable after tripping. Panel mounted compact design. Constructed of molded Bakelite with quick connect, terminal style, stamped brass contacts. Optional Thermal Breaker Boot (420839) provides additional protection in wet environments. 5-30A @ 125-250VAC. 32VDC.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.
![T-Spec V12-CBF200 Circuit Breaker - 200 AMP [V12-CBF200]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/t-spec-v12-cbf200-circuit-breaker-200-amp-v12-cbf200.webp)
![Blue Sea 3119 SMS Surface Mount System Panel Enclosure - 120 /240V AC/ 50A ELCI Main - 1 Blank Circuit Position [3119]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/blue-sea-3119-sms-surface-mount-system-panel-enclosure-120-240v-ac-50a-elci-main.webp)
![Sea-Dog Thermal AC/DC Circuit Breaker - 30 Amp [420830-1]](https://www.bestmarinebattery.com/wp-content/uploads/2026/08/sea-dog-thermal-ac-dc-circuit-breaker-30-amp-420830-1.webp)
