Description
Single Circuit ON-OFF with Locking Key – Red
300 Amps continuous rating for outboards and small gasoline or diesel engines
- Tin-plated copper studs for maximum conductivity and corrosion resistance
- Studs accept 3/8″ (M10) ring terminals
- 7/8″ (22 mm) stud length accepts multiple cable terminals
- Blue Sea Systems one-piece terminal stud design never loosens over time
- One-piece stainless flange nuts ensure safe and secure connections
- Isolating cover protects rear contacts
- Breakout tabs allow wire access in any direction
Specifications:
- Switch Type: Single Circuit ON-OFF
- Color: Red
- Maximum Voltage: 48V DC
- Continuous Rating: 300A
- Intermittent Rating: 500A
- Cranking Rating 30 sec: 900A
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.
Owner’s Manual (pdf)

![BEP Heavy-Duty Battery Switch – 600A Continuous [720]](https://www.apartship.com/wp-content/uploads/2025/4/1745803418/bep-heavy-duty-battery-switch-600a-continuous-720-1745803422.webp)
![Victron BCD 402 Combiner Diode – 2 Batteries – 40A BCD402 [BCD000402000]](https://www.apartship.com/wp-content/uploads/2025/4/1745803739/victron-bcd-402-combiner-diode-2-batteries-40a-bcd402-bcd000402000-1745803743.webp)
![Hella Marine 50A Master Battery Switch [002843011]](https://www.apartship.com/wp-content/uploads/2025/4/1745803591/hella-marine-50a-master-battery-switch-002843011-1745803595.webp)
![Sea-Dog Battery Tray w/Straps f/27 Series Batteries [415047-1]](https://www.apartship.com/wp-content/uploads/2025/4/1745804287/sea-dog-battery-tray-w-straps-f-27-series-batteries-415047-1-1745804291.webp)