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 Volts (DC)

⚡50A heavy-duty current capacity

🔧Compact 12mm panel mount size

🔩Chrome-plated metal screw terminals

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€ 15.70

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
DAIERTEK
Material
Metal
Mounting Type
Panel Mount

Description

⚡ Flip the switch on reliability and style!

SLEEK STURDY - Durable aluminum and copper build with chrome-plated terminals for corrosion resistance and longevity.
RELIABLE RATED - Meets IEC 60529 standards with 1500V dielectric strength and 100MΩ insulation resistance for safety and performance.
POWER THROUGH ANYTHING - Handles a robust 50 Amp current for demanding automotive circuits.
EFFORTLESS INSTALLATION - Standard 1/2 inch (12mm) mounting hole with machine screw terminals for quick, secure connections or soldering.
VERSATILE AUTOMOTIVE ESSENTIAL - Perfect for controlling lights, fog lamps, dome lights, and other vehicle accessories with ease.

The DaierTek Automotive Toggle Switch is a heavy-duty, 50 Amp 12V DC SPST switch designed for automotive use. Featuring a durable aluminum and copper construction with chrome-plated screw terminals, it offers easy installation via a 12mm panel mount hole. Ideal for controlling various vehicle electrical accessories, it meets rigorous IEC standards ensuring safety and long-lasting performance.

Specifications

AC Adapter Current	50 Amps
ASIN	B07SJS8BFM
Best Sellers Rank	#16,489 in Automotive ( See Top 100 in Automotive ) #55 in Automotive Replacement Toggle Switches
Brand	DAIERTEK
Contact Material	Copper,metal
Contact Resistance	50
Current Rating	50 Amps
Date First Available	June 3, 2019
Dielectric Strength	1500 volts
Insulation Resistance	100 Megaohms
Item Weight	1.34 ounces
Item model number	R13-401-101
Manufacturer	DaierTek
Material	Metal
Mounting Type	Panel Mount
Operating Voltage	12 Volts (DC)
Operation Mode	ON-NONE-OFF
Product Dimensions	1.37 x 0.77 x 2.85 inches
Specification Met	IEC 60529
Terminal	Screw
UPC	016071636291
Voltage	12 Volts (DC)

Reviews

T**Y

Good quality

Nice switch. Works as described

13.11.2025

A**O

Toggle Switch

I got to finish my project. Toggle switch works well.

26.09.2025

T**M

Just as described

Nice heavy duty switch.

5.12.2025

S**B

Quality made

Heavy duty switches worked great with 6 gauge wire

25.02.2025

M**Y

Product

Good product for the price

14.12.2025

W**9

Exactly what I needed.

exactly what I needed for a kill switch on my fuel pump.

11.11.2025

D**U

Just what I needed.

Item was on time and was as advertised. The item installed and performed as advertised.

9.09.2025

J**N

DaierTek Automotive Toggle Switch 50A 12VDC

Works great

31.08.2025

ا**ي

ممتاز

30.07.2022

C**.

Solidez y resistencia

30.06.2023

J**O

Muy buenos

13.08.2022

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