Blue Sea Systems BSS Circuit Breaker Push Button MD 20A

The Blue Sea Systems 2139 Battery Switch provides reliable battery isolation and power control for marine and automotive electrical systems. Constructed with corrosion-resistant materials, it offers durable performance in harsh environments. Featuring a user-friendly rotary knob and clear on/off indicator, this switch simplifies battery management and prevents unwanted power drain. Ideal for boats, RVs, and off-road vehicles, the 2139 ensures efficient, safe operation and protection for your electrical system.