I would like to use this or something similar to have a 240v 20 amp 10awg source to switch from one motor to another. (exterior)

I used this switch to transfer 30 A power through or bypassing a filter. The switch performs well. I did not purchase the variant with an enclosure. So, I can not comment on the quality of that, as to water exclusion, etc. I will note that I had to get three switches in order to get the one I needed which functioned properly. The first I received had a set of dead poles. The replacement had fewer poles than I ordered. The replacement replacement had dead poles. But, I found that switching it rapidly from one position to another a few times fixed this. After that it seemed to function properly and reliably. It's likely had I tried this with the first switch it would have functioned well, also. I'm not sure why the switch behaved like that. It could have been a fluke. I'd say the quality is respectable for the cost. But, test it before you install it.

I am using this in place of an surge guard auto transfer. 50 Amp gen power on one leg and 50 Amp shore power on the other leg. will this handle that?

It should be fine. The switch is rated at 63 amps and you will be off 1 50 amp leg at a time. Double check with an electrician.

Can this be mounted on the outside of my rec trailer to transfer 30 amp load between genset and shore power?

I have the switch, it is not rain or water tight. Outside electrical, lighting etc., carry a water tight rating listed as an IP rating. most general purposes are IP65, IP66 and IP67. For complete information GOOGLE IP WATER RATINGS.

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APIELE Changeover Selector Switch 3 Position 440V Universal Rotary Cam Selector (20A 8 Terminal)

APIELE Changeover Selector Switch 3 Position 440V Universal Rotary Cam Selector (20A 8 Terminal)

Product ID: 172546945

Details

Brand
APIELE
Connector Type
Screw
Contact Type
Normally Open
Current Rating
20 Amps
Item dimensions L x W x H
1.57 x 1.18 x
Material
Copper

⚡20A high current rating

🔄3-position rotary cam selector

🔥Flame retardant, high-temp resistant PC

S$19

Duties & taxes included

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Description

🔧 Power your control with precision and durability!

BUILT TO LAST 3 YEARS - Backed by a 3-year EU spare part availability guarantee for worry-free operation.
COMPACT PANEL MOUNT DESIGN - Fits standard 48x48mm panels with easy installation and sleek integration.
RELIABLE 3 POSITION CONTROL - Seamlessly toggle between ON-NONE-ON states for precise circuit management.
ROBUST 20 A CURRENT HANDLING - Supports up to 20 amps ensuring stable performance under demanding loads.
PREMIUM SILVER ALLOY CONTACTS - Enhanced conductivity and durability for long-lasting, corrosion-resistant switching.

The APIELE Changeover Selector Switch is a 3-position rotary cam switch designed for industrial and scientific applications. Rated for 20 amps and up to 690V, it features flame retardant PC housing and premium silver alloy contacts for reliable, long-lasting performance. Its compact panel mount design fits standard 48x48mm cutouts, making it ideal for precise manual control in motors, switches, and control circuits. With a 3-year spare part availability and a strong customer rating, it’s engineered for professionals who demand durability and efficiency.

Specifications

ASIN	B07ZV8DSHR
Actuator Type	Rotary
Best Sellers Rank	#28,151 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #6 in Selector Switches
Brand Name	APIELE
Circuit Type	3-way
Compatible Devices	Motors, Switches, Control Circuits
Connectivity Protocol	X-10
Connector Type	Screw
Contact Material	Silver
Contact Type	Normally Open
Control Method	Touch
Control Type	Manual
Current Rating	20 Amps
Customer Reviews	4.4 4.4 out of 5 stars (153)
EU Spare Part Availability Duration	3 Years
Included Components	Screw
International Protection Rating	IP20
Item Dimensions	1.57 x 1.18 x 0.39 inches
Manufacturer	API Electric
Material Type	Copper
Model	20A 8 Terminal
Mounting Type	Panel Mount
Number of Items	1
Number of Positions	1
Operating Voltage	120 Volts
Operation Mode	ON-NONE-ON
Part Number	CO
Smart Home Compatibility	Not Smart Home Compatible
Specification Met	CE
Switch Type	Rotary
Terminal	Screw
UPC	742089214830
Unit Count	1 Count
Upper Temperature Rating	80 Degrees Celsius

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