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The Nilight Battery Disconnect Switch 300A is a heavy-duty, rotary On-Off master isolator designed for 12-32V DC systems. Featuring a durable ABS plastic housing and premium copper terminals, it delivers a continuous current rating of 300 amps and a cranking rating of 1000 amps for 30 seconds. Its IP54 rating ensures reliable performance in harsh environments, making it ideal for vehicles, marine boats, RVs, and more. The switch prevents battery drain by safely disconnecting power and can be locked for added security.
| ASIN | B0CR5GZ8H6 |
| Actuator Type | Rotary |
| Best Sellers Rank | #519 in Automotive ( See Top 100 in Automotive ) #2 in Automotive Replacement Battery Switches |
| Brand | Nilight |
| Brand Name | Nilight |
| Circuit Type | 1-way |
| Color | 1Pcs On-Off Switch 300A |
| Compatible Devices | cars, marine boats, RVs, campers, travel trailers, trucks, ATVs, UTVs, battery banks |
| Compatible with Vehicle Type | car, marine boats, RVs, campers, travel trailers, trucks, ATVs, UTVs |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 300 A |
| Customer Reviews | 3.7 out of 5 stars 62 Reviews |
| EU Spare Part Availability Duration | 2 years |
| Included Components | 1x 300A battery disconnect switch with a wiring diagram |
| International Protection Rating | IP54 |
| Item Dimensions | 1 x 1 x 1 inches |
| Lower Temperature Rating | 1 °C |
| Manufacturer | Nilight |
| Material Type | Copper, Plastic |
| Model | 90330A |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 12 volts_of_direct_current |
| Operation Mode | ON-OFF |
| Part Number | 90330A |
| Specification Met | 1 |
| Switch Type | Kill Switch |
| Terminal | Screw |
| UPC | 840323914291 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 1 °C |
A**.
Battery switch E
Great product.
E**N
POS
cheap junk I took it out of the box and the switch popped off. I put it back but the switch easily over travels outside of the on/off range. I'm done trusting amazon products for electrical use. If someones going to burn my trailer down it's going to be me
A**R
That it does what it says it’s gonna do
It takes up very little space and works perfectly
J**E
It works
It works! The action for the switch is a little loose, so you can twist it past “Off” if you’re not careful
A**R
Flimsy backing plate
Backing plate is made from hand bendable aluminum. Any tension and it will break. Not great for nice setups
E**I
Nice disconnect!
I am an automotive technician and I felt it is important that this disconnect be able to function without dropping more than 0.1V under a substantial load before i would install it. The video is an example where I pulled a 300 amp load for about 12 seconds and then progressed it to about 450 amps before my weak battery started to drop too low. You will notice the voltage drop was within an acceptable range under a severe load. The only heat produced was in the carbon pile and at the jumper connection at the switch. The nuts being tight on cables should stop it from heating up. In the attached pictures you can see that a 2" hole should allow this switch to mount in place. I will definitely purchase this disconnect if this size is needed again.
B**B
Poor Quality
Switch broke after a short time. Red knob broke off.
B**N
Sturdy little switch
Good little switch. Keep in mind it is rather small. Looks very durable.
Trustpilot
3 days ago
1 day ago