Description
Single Circuit ON-OFF with Locking Key – Black
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: Black
- 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.
Explore more from our collection.
![Blue Sea 6004200 Single Circuit On-Off W/Locking Key - Black [6004200] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/blue-sea-6004200-single-circuit-on-off-w-locking-key-black-6004200-1-01.webp)
![Blue Sea 6004200 Single Circuit On-Off W/Locking Key - Black [6004200] 2](https://automotivecenter.shop/wp-content/uploads/2026/05/blue-sea-6004200-single-circuit-on-off-w-locking-key-black-6004200-2-02.webp)
![Pro-Guide 1 Bank On-Board Battery Charger - 12V/16V - 10-Amp [Pgc-116] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/pro-guide-1-bank-on-board-battery-charger-12v-16v-10-amp-pgc-116-1-01.webp)
![Pro-Guide 3 Bank On-Board Battery Charger - 12V - 30-Amp [Pgc-310] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/pro-guide-3-bank-on-board-battery-charger-12v-30-amp-pgc-310-1-01.webp)
![Egis M-Series 300A Dual Circuit Battery Switch W/Combine Battery Switch [2311] 1](https://automotivecenter.shop/wp-content/uploads/2026/05/egis-m-series-300a-dual-circuit-battery-switch-w-combine-battery-switch-2311-1.webp)
Reviews
There are no reviews yet.