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🔋 Master your power flow with Blue Sea’s unstoppable battery switch!
The Blue Sea Systems Battery Switch ON/Off AFD is a robust 4-way selector switch designed for petrol and diesel engines, delivering a continuous 350A current rating. Its unique AFD feature allows safe switching while the engine is running, protecting your alternator. Constructed with durable tinned copper terminals and rated IP66, it ensures long-lasting performance in demanding marine and automotive settings. Compact and easy to mount, it’s the professional’s choice for reliable battery management.




| ASIN | B000K2MCR2 |
| Actuator Type | Push Button |
| Best Sellers Rank | 186,624 in Automotive ( See Top 100 in Automotive ) 459 in Car Battery Switches |
| Brand | Blue Sea Systems |
| Circuit Type | 4-way |
| Colour | Black |
| Compatible Devices | Petrol and diesel engines, boats, vehicles with battery connection points |
| Compatible with Vehicle Type | Boats, RVs, Trucks |
| Connectivity Protocol | X-10 |
| Connector Type | Screw |
| Connector type | Screw |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Contact type | Normally Open |
| Control Method | Touch |
| Control Type | Discrete |
| Controller Type | Ring |
| Current Rating | 350 Amps |
| Current rating | 350 Amps |
| Customer Reviews | 4.7 out of 5 stars 1,556 Reviews |
| EU Spare Part Availability Duration | 5 Years |
| Global Trade Identification Number | 00632085900151 |
| Included Components | BATTERY SELECTOR 4-WAY |
| International Protection Rating | IP66 |
| Item Dimensions | 9.8 x 9.8 x 7.9 centimetres |
| Item Type Name | BATTERY SELECTOR 4-WAY |
| Item Weight | 0.95 Pounds |
| Lower Temperature Rating | 1 Degrees Celsius |
| Manufacturer | Blue Sea Systems |
| Manufacturer Part Number | 9001e-BSS |
| Material | Plastic |
| Model Number | 9001e-BSS |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 32 Volts (DC) |
| Operating voltage | 32 Volts (DC) |
| Operation Mode | ON-OFF |
| Operation mode | ON-OFF |
| Switch Type | Selector 4 Position |
| Terminal | Screw |
| UPC | 632085900151 |
| Unit Count | 1.0 count |
| Upper Temperature Rating | 5 Degrees Celsius |
| Wattage | 4200 watts |
A**R
Very happy.
Well made and solid. Very happy. Just make sure you connect the right leads to the correct terminals on the back to avoid a fair bit of confused head scratching… It’s obvious and well labeled so just blame user error…
T**S
Five Stars
Excellent product
J**E
Great product!
Great, very good. I should have bought two. Fast shipping and the product is satisfactorily functional for it's intended purpose. These are really cool We were very pleased to have them. Seems well built and good quality Just thrilled with this item!!!
V**L
Top
Prodotto di qualità
F**S
Correspond à mes attentes
Correspond à mes attentes
F**H
Work good
Very well made. Easy to follow instructions.
C**U
La mejor marca del mercado
Calidad máxima
J**S
Servicio rápido y producto de buena calidad
Todo bien llego rápido y bien protegido el producto trabaja excelente lo recomiendo
Trustpilot
3 weeks ago
1 week ago