Surge protectors

Learn the NEC with Mike Holt now!

Surge protectors

  • Total voters
    3
  • Poll closed .
Status
Not open for further replies.
mikecorlett@hotmail.com said:
How do you install a outdoor

240a surge protector? I see they don't have a load side connection.
Click to expand...

There are basically three types of surge protectors, ones that are listed to install on the line side of the main, ones that are listed to be installed only on the load side of the main, and finally those that need the protection of a branch circuit breaker but may still protect the whole panel.
FWIW, I do not recall SPs being rated in amps.
 
MOV for control coil 480 volt

MOV for control coil 480 volt

Do I need a surge suppressor outside in this situation.

Electricians are having an issue with swamp cooler control relays burning on swamp coolers

we have 480 volt motor for cooler fan,

two legs feed a control relay relaying GFCI protected 110 to a pump receptacle.

we keep losing the coil on the starter when the motor overloads I believe.

should I put a transformer, or a fuse, or a MOV or something in parallel.

Not sure if MOV's are rated for higher voltages though.

a transformer may be better?

or surge protection (MOV's in parallel)?
 
godsquadgeek said:
Do I need a surge suppressor outside in this situation.

Electricians are having an issue with swamp cooler control relays burning on swamp coolers

we have 480 volt motor for cooler fan,

two legs feed a control relay relaying GFCI protected 110 to a pump receptacle.

we keep losing the coil on the starter when the motor overloads I believe.

should I put a transformer, or a fuse, or a MOV or something in parallel.

Not sure if MOV's are rated for higher voltages though.

a transformer may be better?

or surge protection (MOV's in parallel)?
Click to expand...

sorry I should say that, we burn the control relay coil when motors overload, and/or burn up.

the motors are fed from an MCC with a separate starter bucket.

but it's the control relay relaying the 110 that burns up.

it's happened side by side on two units, with 24 hour perioud.
 
godsquadgeek said:
...

two legs feed a control relay relaying GFCI protected 110 to a pump receptacle.

we keep losing the coil on the starter when the motor overloads I believe.

...
Click to expand...
This part of your statement is confusing. Can you elaborate? Something sounds very wrong about this. Any way you can sketch it out, snap a picture and post the schematic?

In general, the motor overloading should trip the overload relay, but should not affect any control power and cause coils to burn out.

Also; you have "hijacked" another thread, it's generally considered poor netiquette to do that, you should have started a new thread.
 
What is a "surge protector"? I'm not familiar with the term from a technical standpoint.
 
Status
Not open for further replies.
Top