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🔴 Cut the power, not the adventure—Spartan Power keeps you in control!
The Spartan Power 300A ON/OFF Battery Disconnect Switch is a heavy-duty, ignition-protected rotary switch designed for 12V to 48V DC systems in RVs, marine, and automotive applications. With a continuous rating of 300A, intermittent 500A for 5 minutes, and a cranking surge capacity of 900A for 30 seconds, it ensures reliable power isolation. Its versatile mounting options and lifetime warranty make it a trusted choice for professionals seeking durable, safe battery management.
| ASIN | B09WZF17KB |
| Actuator Type | Rotary |
| Best Sellers Rank | #199,725 in Sports, Fitness & Outdoors ( See Top 100 in Sports, Fitness & Outdoors ) #162 in Electrical Equipment Battery Switches |
| Brand | Spartan Power |
| Brand Name | Spartan Power |
| Circuit Type | 1-way |
| Colour | Red |
| Compatible Devices | RV, marine, and automotive devices requiring 12V to 48V DC power supply |
| Compatible with Vehicle Type | RV, Marine, Automotive |
| Connectivity Protocol | Wi-Fi |
| Connector Type | Screws |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | App |
| Control Type | Knob |
| Controller Type | Push Button |
| Current Rating | 300 Amps |
| Customer Reviews | 4.7 out of 5 stars 287 Reviews |
| International Protection Rating | IP54 |
| Item Dimensions | 8.3 x 8.3 x 9.1 Centimeters |
| Manufacturer | Spartan Power |
| Material Type | Copper |
| Model Number | SP-BS300A-RED |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 2 |
| Operation Mode | ON-OFF |
| Part Number | SP-BS300A-RED |
| Specification Met | UL, IEC 60669-2-1:2002, IP54 |
| Switch Type | Knob |
| Terminal | Screw |
| UPC | 810019984327 |
| Unit Count | 1.0 Count |
| Wattage | 14400 Watts |
R**4
Good product.
I bought this one and a cheaper one. Buy the cheaper on. Except for being a darket color and having a name on it they both are identical
B**Z
Works as advertised!
Does what it is supposed to do. I am using 2/0 cable and had to trim the case a bit to make them fit. so make sure your wire and lugs are smaller than 2/0 or trimming will be necessary.
R**S
Solid, durable and built to last.
Used this on a travel trailer and installed it right on the battery box. Was easy to wire in and seems well made and durable. Connection posts are solid. I think this will hold up to the elements and is a good protection for my trailer. I did need to buy a different set of nuts and bolts for my specific application, but that was expected.
B**D
Very good quality
This works very good, components are top notch, used as a master disconnect on an off grid solar system works perfect.
W**W
Good basic switch.
This is a good simple, marine or automotive grade switch. My only complaint is that it only has dust or water panels on three sides. The fourth side is left wide-open to dust or water sprayer. Whatever. Switches like this generally have all four sides and closed and you cut notches around the cables as tightly as possible to help keep out water and dust, etc., I returned the first one thinking there was something missing yet the second one came exactly the same with one side of the switch wide-open to the elements
Trustpilot
1 day ago
2 weeks ago