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The Nilight Battery Disconnect Switch is a rugged, waterproof 300A master isolator designed for 12-48V systems. Featuring a durable ABS plastic housing and premium copper terminals, it safely cuts off battery power to prevent drain and protect your vehicle or vessel. Ideal for marine, automotive, RV, and off-road applications, it offers reliable On-Off control with IP54 protection and a 2-year warranty, ensuring peace of mind for professionals who demand durability and safety.
| ASIN | B0CR5GZ8H6 |
| Actuator Type | Rotary |
| Best Sellers Rank | #483 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 |
| Connectivity Protocol | X-10 |
| Connector Type | Plug In |
| Contact Material | Copper |
| Contact Type | Normally Open |
| Control Method | Touch |
| Current Rating | 300 Amps |
| Customer Reviews | 3.9 out of 5 stars 56 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 Degrees Celsius |
| Manufacturer | Nilight |
| Material Type | Copper, Plastic |
| Model | 90330A |
| Mounting Type | Panel Mount |
| Number of Items | 1 |
| Number of Positions | 1 |
| Operating Voltage | 12 Volts (DC) |
| Operation Mode | ON-OFF |
| Part Number | 90330A |
| Specification Met | 1 |
| Switch Type | Kill Switch |
| Terminal | Screw |
| UPC | 840323914291 |
| Unit Count | 1.0 Count |
| Upper Temperature Rating | 1 Degrees Celsius |
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
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.
A**R
Flimsy backing plate
Backing plate is made from hand bendable aluminum. Any tension and it will break. Not great for nice setups
B**S
Sad quality
Very disappointed in the locking ring on this. It’s so thin it only catches one thread. They make it look in the pictures like it’s a proper threaded nut. It is stamped sheet metal. The size and function of the switch is perfect. They should be embarrassed that they shipped it with this pathetic nut. If they used a proper nut this would be a 5 star item.
B**N
Sturdy little switch
Good little switch. Keep in mind it is rather small. Looks very durable.
Trustpilot
1 week ago
1 day ago