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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🔋 Cut the power, not the adventure – stay charged and secure with Ampper!

SAFETY FIRST - Durable ABS housing with insulated rear cover prevents shorts and protects your system.
LOCK SECURE - Lockable design ensures your battery stays disconnected when you need it most.
EFFORTLESS SETUP - Includes copper terminal studs and mounting bolts for quick, hassle-free installation.
POWERHOUSE PERFORMANCE - Handles up to 275A continuous and 1250A momentary current for ultimate reliability.
UNIVERSAL COMPATIBILITY - Works seamlessly with 12-48V DC systems—perfect for cars, RVs, boats, and more.

The Ampper Battery Disconnect Switch is a heavy-duty, ABS plastic housed isolator designed for 12-48V DC systems. It supports continuous currents up to 275A and momentary surges up to 1250A, ensuring safe and reliable battery disconnection for vehicles, RVs, and boats. Featuring insulated terminals, lockable operation, and universal copper studs, it eliminates battery drain and protects your electrical system with easy installation.

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RM156

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Malaysiastore

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Manufacturer	Ampper
Brand	Ampper
Model	Am-CBS01
Product Dimensions	7.01 x 9.5 x 7.49 cm; 264.78 g
Item model number	Am-CBS01
Exterior	Plastic
Manufacturer part number	Am-CBS01
Special Features	Used for DC 12 - 48V systems, disconnects the battery safely, electrical equipment's switch, eliminate any power draw from the battery when vehicle or boat is not in use, isolate and secure the electrical system
Lift type	Off
Voltage	12 Volts
Item Weight	264 g

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

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