weressl
Esteemed Member
A UL listed combination starter would include, disconnect, short circuit protective device, control power transformer with primary and secondary fusing as required, contactor and overload protective element.
Protecting a control circuit
- Thread starter conmgt
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A UL listed combination starter would include, disconnect, short circuit protective device, control power transformer with primary and secondary fusing as required, contactor and overload protective element.
Oh my gosh guys,,,,,,, we all know all of this.
If you go to the supply house and ask for a 00 starter, what's going to be in the box when you open it?
A Starter nothing else.(Other than maybe some styofoam and some literaterature for overload selections or where to put the jumper for different types of coil voltage). Oh and maybe a set of extra auxiilliaries on the side of it.
There will be no control transformer or fuse protection for the control power or overload heaters.
The next thing you generally ask for is a set of overloads sized for whatever the amperage of the motor your going to be running.
As far as the control power for it, you'll have to provide that yourself, either by an external power source, a control transformer added to your installation or if your going to use the Line Voltage for your control then you have to decide how you want to protect the #14 control wires your fixing to tap off the line side of the starter which may be fed with a much larger breaker.
To me thats what the OP has, not a MCC bucket,Combo Stater or fabricated motor control cabinets that I work in and fabricate every day.
If you go to the supply house and ask for a 00 starter, what's going to be in the box when you open it?
A Starter nothing else.(Other than maybe some styofoam and some literaterature for overload selections or where to put the jumper for different types of coil voltage). Oh and maybe a set of extra auxiilliaries on the side of it.
There will be no control transformer or fuse protection for the control power or overload heaters.
The next thing you generally ask for is a set of overloads sized for whatever the amperage of the motor your going to be running.
As far as the control power for it, you'll have to provide that yourself, either by an external power source, a control transformer added to your installation or if your going to use the Line Voltage for your control then you have to decide how you want to protect the #14 control wires your fixing to tap off the line side of the starter which may be fed with a much larger breaker.
To me thats what the OP has, not a MCC bucket,Combo Stater or fabricated motor control cabinets that I work in and fabricate every day.
- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
Jap, you either read too fast or your attention span is about as long as mine!:blink:
"Conmgt" is the OP!:slaphead:
Aleman
Senior Member
- Location
- Southern Ca, USA
Just a simple fuse in the panel is all you need. Can be a fuse block or din mount fuse holders depends on how your stuff is built.
That is correct.
FWIW, you are correct regarding starter vs. combination starter. Ultimately I consider a straight out-of-the-box starter just one part of a complete starter, aka combination starter.
For the fact of the matter herein, the Moeller DIL 0AM spec'd by the OP'er, is a magnetic contactor (manufacturer's terminology)... not a starter.
- Location
- Tennessee NEC:2017
- Occupation
- Semi-Retired Electrician
Hope your still doing alright.
- Location
- Illinois
- Occupation
- retired electrician
I don't think that there is any requirement for a control power transformer in a combination stater. Yes, most have them, but they are not needed if you use the line voltage as the control voltage. The code does not prohibit the use of line voltage control systems.
weressl
Esteemed Member
- Location
- Illinois
- Occupation
- retired electrician
I think you have to now if the button is on the starter. I believe the newest edition requires PPE if you are interacting with the equipment.NFPA 70E soon will....
weressl
Esteemed Member
Really? Can you say that the control wires/fuse will sufficiently limit the line voltage of 480V so that the energy available at the remote control station will not require AFP 1 or even 2? I certainly can't....
conmgt
Senior Member
- Location
- 2 Phase Philly
Thanks for all of the input!
430.72 answered my question as far as motors are concerned but what about when you are controlling something other than a motor such as resistance heating or lighting?
Is line voltage control wiring in those cases considered Class 3?
430.72 answered my question as far as motors are concerned but what about when you are controlling something other than a motor such as resistance heating or lighting?
Is line voltage control wiring in those cases considered Class 3?
conmgt
Senior Member
- Location
- 2 Phase Philly
I'm now seeing that Article 725 may have my answers.
- Location
- Illinois
- Occupation
- retired electrician
In my opinion most 120 volt control wiring is non-power limited Class 1.
Agree. For Class 2 or 3, there would have to be a control transfomer or some other control power supply involved.
- Status