On/off toggle switch on power wire to EFI fuel pump?

[Sinitro]

Another thing to consider if going to a toggle switch..
Be sure to get a quality switch, avoid the off-shore China junk
they overate the current handling and use cheap materials.
Shop around get a switch sourced from Japan or USA..

Just my $0.02..

 

[neverswitch]

While waiting for spring, was wondering if anyone has advice on installing a toggle switch on the power wire going from the MSD Atomic module and runs directly to the intank fuel injection fuel pump?
Figured it to be handy in order to turn fuel pump off while working on other electrical systems and serve as a theft deterrent if installed in the trunk?

I used to sell custom made anti-theft devices which protected the vehicle from being moved, running or not. Shutting down the fuel pump was an option for vehicles that had no coil, such as diesels, modern ignitions (separate "coils" per cylinder. etc.)
Usually we interrupted the ignition with a relay triggered by the reverse and/or brake lights. You could leave the engine running as long as you didn't trigger the lights. If triggered. the wiring looped the relay, killed the ignition and as an option, triggered the horn. It was very adaptable, as the original design proved to be a building block for more intricate systems.
No parasitic draw unless triggered, meaning you could store the vehicle with the device still protecting the vehicle.
I sold many devices to fire, ambulance, police, government, utility, service, railway, maintenance vehicles of all kinds, even taxis and school buses. No electronic interference.

 

[koosh]

Another thing to consider if going to a toggle switch..
Be sure to get a quality switch, avoid the off-shore China junk
they overate the current handling and use cheap materials.
Shop around get a switch sourced from Japan or USA..

Just my $0.02..

Funny you mentioned that…. Each and every toggle switch i chose in Amazon came from China……EVERY one…. The search continues for USA

 

[GTXDAN]

Another toggle switch from Summit 40A.

QuickCar 50-520 QuickCar Replacement Toggle Switches | Summit Racing

 

[koosh]

Another toggle switch from Summit 40A.

QuickCar 50-520 QuickCar Replacement Toggle Switches | Summit Racing


View attachment 1987172

Nice! And made in USA!
Thanks

 

[Sinitro]

Funny you mentioned that…. Each and every toggle switch i chose in Amazon came from China……EVERY one…. The search continues for USA

A good source for a quality toggle switch is Grainger...
Grainger.com
Check Country of Origin closely...
Some are made in the USA or Mexico or Japan.
Often the certifying agency such as UL or CSA is stamped
on the switch's side panel.
Final note, some may be made in China...
but Grainger tends to stock the better quality switches...

Just my $0.02...

 

[koosh]

Another toggle switch from Summit 40A.

QuickCar 50-520 QuickCar Replacement Toggle Switches | Summit Racing


View attachment 1987172

This is weird… Summit says 40amp, same part number at Amazon- says 25amp….. fired off an email to Quickcar…

 

[Sinitro]

This is weird… Summit says 40amp, same part number at Amazon- says 25amp….. fired off an email to Quickcar…

Happens frequently...
The published specs are hyped to stand out against the competition..
Also sometimes different specs are indicated for continuous
and/or intermittant current flow..

Just my $0.02...

 

[Crackedback]

Happens frequently...
The published specs are hyped to stand out against the competition..
Also sometimes different specs are indicated for continuous
and/or intermittant current flow..

Just my $0.02...

Lots of junk out there.

My favorite chinese product screw job deal. Wire that has the OD of normal 12ga and the strands inside are 16ga. Insulation is cheaper than copper! Seen that more than once. Part of why I won't purchase any wire that is made overseas. Vendors are sometimes sneaky about country of origin. Ask 100% of the time.

 

[neverswitch]

Lots of junk out there.

My favorite chinese product screw job deal. Wire that has the OD of normal 12ga and the strands inside are 16ga. Insulation is cheaper than copper! Seen that more than once. Part of why I won't purchase any wire that is made overseas. Vendors are sometimes sneaky about country of origin. Ask 100% of the time.

You raise a good point. I used to sell wire for a manufacturer. We had a certain type of wire that was usually rated as 600v (standard). On occasion a customer requested 1000v insulation. The insulation was the same thickness, but the rating had a separate "test" procedure. The reasoning was that the insulation was thicker than necessary on the 600v wire for manufacturing purposes. (mechanical protection in the process) ..and yes, a premium was usually charged.
North American has strict standards such as CSA, UL, and CUL in the electrical field (along with other products) On occasion some "cheap" substitutes were ordered by people wanting to save money -Not Certified, -Not Meeting Code acceptance. We "heard stories" of these Asian manufacturers actually offering to send "CSA" labels to the purchased to affix to the product.