Is there a bottom or back?

Yes the switch is fully enclosed except for the side you enter with the wire

These are listed as being rated for 275A continuous, but the manual this switch comes with says its only 200A continuous. Which is the correct rating?

Thank you for your purchase. The item you recieved is On-Off battery switch, and the pamphlet you recieved is 1-2-Both-Off battery switch, so sorry for the issue casued to you, the pamphlet may be mixed by our worker. Fot the item you purchased X001H8MQTX (On-Off battery switch), the continuous rating is : 275Amps DC. Also below are some tips for you to install the switch: The 2 terminals are same, no negative and positive. Just like a switch, connected to the switch on both sides so when you flip the switch it cuts the circuit. More, recommend to install this cut off switches on the negative, not the positive (lower current in negative, will be more safety). The switch can be install in the negative wire, another short battery cable or cut existing cable and attach terminals on each end. Hope the info can help you.

How far from battery can it be installed?

Mine is 2 feet from the battery, I don't think it matters. Your cable size will have to increase the further away from the battery that you install it.

If the switch is on off (red) is the battery not drawing or the disconnect is not engaged and battery still drawing? Over thinking I'm sure.

battery 1 to switch,battery 2 to load side if you are using battery 2 too power stuff. if switch is off then battery 2 will power your things and not draw from main battery 1. To charge battery 2 turn switch to on then turn off when its fully charged if that makes sense

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Ampper Battery Disconnect Switch 12V - 48V, Marine Battery Switch Disconnect Power Cut Shut Off for Car, Vehicle, RV and Boat (On/Off)

Product ID: 45776791

Details

Brand
Ampper
Connector Type
Screw
Contact Type
Momentary
Current Rating
275 A
Item dimensions L x W x H
2.76 x 3.74 x
Material
Acrylonitrile

⚡Supports 12-48V DC systems

🔋275A continuous current rating

🔧Easy universal installation

R$215

Duties & taxes included

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Description

🔋 Cut the power, not the adventure — stay safe and in control!

BUILT TO LAST - Durable ABS housing with insulated rear cover ensures safety and longevity in harsh environments.
EFFORTLESS CONTROL - Simple On/Off rotary switch design for quick, secure battery isolation anytime.
DIY READY INSTALLATION - Includes 4 mounting bolts and copper terminal studs for fast, hassle-free setup.
POWERHOUSE PERFORMANCE - Handles up to 275A continuous and 1250A momentary current for ultimate reliability.
UNIVERSAL COMPATIBILITY - Seamlessly integrates with cars, RVs, boats, and more across 12-48V DC systems.

The Ampper Battery Disconnect Switch is a heavy-duty, ABS-encased rotary switch designed for 12-48V DC systems, delivering up to 275A continuous current and 1250A momentary surge capacity. Engineered for universal use in cars, RVs, boats, and other vehicles, it safely isolates batteries to prevent power drain and electrical hazards. Featuring insulated terminals, copper studs, and a straightforward On/Off operation, it offers a reliable, easy-to-install solution trusted by DIYers and professionals alike.

Specifications

ASIN	B07413JWLD
Actuator Type	Rotary
Best Sellers Rank	#15,187 in Automotive ( See Top 100 in Automotive ) #34 in Automotive Replacement Battery Switches
Brand	Ampper
Brand Name	Ampper
Circuit Type	2-way
Color	On-Off
Compatible Devices	Car, Vehicle, RV, Boat Electrical Systems
Compatible with Vehicle Type	Universal Fit (voltage at: DC 12 - 48V systems): Marine Boat, Ship, Yacht, RV, Truck
Connectivity Protocol	Wi-Fi
Connector Type	Screw
Contact Material	Copper
Contact Type	Normally Open
Control Method	Touch
Control Type	On/Off
Controller Type	Push Button
Current Rating	275 A
Customer Reviews	4.7 out of 5 stars 8,726 Reviews
Global Trade Identification Number	00608613215417
International Protection Rating	IP65
Item Dimensions	2.76 x 3.74 x 2.95 inches
Item Weight	9.34 ounces
Manufacturer	Ampper
Material Type	Acrylonitrile Butadiene Styrene
Model	Am-CBS01
Mounting Type	Surface Mount
Number of Items	1
Number of Positions	2
Operating Voltage	12 volts
Operation Mode	ON-OFF
Part Number	Am-CBS01
Switch Type	Kill Switch
Terminal	Screw
UPC	608613215417
Unit Count	1 Count

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R$215

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Brazil.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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