Would there be a problem using this switch for 120vac at less than 5 amps?

This switch is for 12 volt DC current. Not 120v AC.

Do they make a universal 12 volt rheostat switch for a blower motor to control the speed?

Probably, the problem is each blower motor will be different - amperage could be a problem. You would need to know what the volt/amps is for the existing and then look for specs on others.

which terminal is ground

This is an on-off switch so there is no ground. In a 12v system, auto, boat, rv, you switch the "hot" wire and leave the ground directly connected to the load (light, pump, etc.). I am using this in an RV on the battery box. These days, your smoke detector and/or CO2 detector are always on, so this allows me to turn off the battery when I want to remove it without the annoying spark.

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DaierTek Automotive Toggle Switch 50A 12VDC Heavy Duty 12 Volt ON Off Switch 50 Amp SPST 2 Position 2 Pin Metal Chrome Plated Screw Terminals

Product ID: 146499492

Details

Brand
DAIERTEK
Material
Metal
Mounting Type
Panel Mount
Terminal
Screw
Voltage
12

⚡50A heavy-duty current capacity

🔧12mm precision mounting hole

🔩Durable metal & chrome-plated terminals

199 DH

Duties & taxes included

In stock

Sold byAmazon MoroccoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚙️ Flip the switch to power your ride with confidence!

BUILT TO LAST - Crafted from premium aluminum and copper with chrome-plated screw terminals for ultimate durability and corrosion resistance.
TRUSTED BY PROS - Highly rated with 4.5 stars from 765 reviews, making it a go-to choice for automotive enthusiasts and professionals alike.
POWER THROUGH ANYTHING - Handles a robust 50 Amp current at 12V DC for all your automotive power needs.
EFFORTLESS INSTALLATION - Standard 12mm mounting hole and machine screw terminals ensure quick, secure, and solder-friendly connections.
VERSATILE AUTOMOTIVE ESSENTIAL - Perfect for controlling lights, fog lamps, dome lights, and other vehicle accessories with reliable ON/OFF switching.

The DaierTek Automotive Toggle Switch is a heavy-duty, 50 Amp, 12V DC SPST switch designed for reliable automotive applications. Made from durable aluminum and copper with chrome-plated screw terminals, it features a 12mm mounting hole for easy panel installation. Ideal for controlling vehicle lighting and accessories, this rugged toggle switch combines professional-grade performance with user-friendly installation, backed by excellent customer reviews.

Specifications

ASIN	B07SJS8BFM
Best Sellers Rank	#16,592 in Automotive ( See Top 100 in Automotive ) #49 in Automotive Replacement Toggle Switches
Brand Name	DAIERTEK
Circuit Type	2-way
Color	White
Connector Type	Screw
Contact Material	Copper,metal
Contact Resistance	50
Contact Type	Spst
Current Rating	50 A
Customer Reviews	4.5 4.5 out of 5 stars (775)
Dielectric Strength	1500 volts
Insulation Resistance	100 megaohms
Item Weight	38 g
Manufacturer	DaierTek
Material Type	Metal
Maximum Current	50 A
Model	R13-401-101
Mounting Hole Diameter	12 millimeters
Mounting Type	Panel Mount
Number of Positions	2
Operating Voltage	12 volts_of_direct_current
Operation Mode	ON-NONE-OFF
Part Number	R13-401-101
Specification Met	IEC 60529
Switch Type	Metal, Rocker Switch, SPST, Toggle Switch
Terminal	Screw
UPC	016071636291
Unit Count	1 Count
Voltage	12 volts_of_direct_current

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

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Great experience from order to delivery. Highly recommended!

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The product exactly matches the description. Very satisfied with my purchase.

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