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Magnetic starter question

notso

Member
Joined
Mar 10, 2010
Messages
22
Any help would be appreciated, Im wiring in a new phase converter and I have two magnetic starters ive tried and I cant get either one to work. Im sure its a flaw in my wiring not the coils themselves. When I turn on the breaker to the starter the coil is not energizing, I can push it in and the converter starts but its not pulling in like its supposed to. My question is, is there something more I have to do because im feeding this off 220 single phase to get power to the coil? I took a picture ill put on here later. The starter is a class 8536 size 0 with push button start stop.
 
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q miester

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Feb 24, 2010
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Location
so-cal
would like to help but really need a picture to answer alot of questions and verify that your thermal overloads were installed correctly and you pushed the reset button to complete the holding circuit and the list goes on. but cant wait to see pic
 

q miester

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Feb 24, 2010
Messages
51
Location
so-cal
notso,
that coil in the picture is 120v and unless there is a control transformer behind the name plate above the start stop it will not work on 220v.(need 220v coil) if there is a transformer behind that plate make sure that both fuses are good. please check that first then more troubleshooting can happen.
 
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willf650

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Mar 10, 2010
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822
As stated your coil is 120v and is not completely wired up. There is a terminal in the lower left of the starter under the word tripped. There are actually two terminals there which are the overload. One should have a wire on it already that loops up to one of the coil terminals. The other is where you would land the neutral wire to the coil. These terminals are a ***** to get to. For the most part the control circuit appears to be wired up for you. Chances are that red wire going to the top of the starter is feeding power into the start/stop switch assembly and may be tagged onto the incoming line conection on the starter.

Any way heres how the circuit should be wired. You probably just have to provide a neutral and possibly a 120 volt line although you can use the incoming line for the power depending on what you are doing.
807407978_NYdsU-L.gif
 
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N

notso

Member
Joined
Mar 10, 2010
Messages
22
Thanks for the help guys got it working without letting any magic smoke or sparks out. Which is my usual method but these toys are much more expensive to replace so I figured I would ask for help. Great answers.
 

JustBob

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Feb 10, 2010
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183
Location
Mobile, Alabama
Thanks for the help guys got it working without letting any magic smoke or sparks out. Which is my usual method but these toys are much more expensive to replace so I figured I would ask for help. Great answers.

If you are running an air compressor, a pump or any electric motor that auto cycles, then that particular switch(momentary contact) should be disconnected from the circuit, and a on/off(maintained) push button or selector switch should be installed.

I notice that you are running 2 seperate circuits off this Starter. The output terminals are rated for 2 conductors each, one on each side of screw if your wires are long enough. Check the size of the output wires going to the wirenuts, they look to be of smaller gauge(size) than the other wires. This particular starter(8536 SBG) is rated for a max of 18 amps or 3HP@200/230VAC - 5HP@460/575VAC 3 phase. Breaker for starter should be a MAX 20 amp 220v breaker.

The purpose of the Sarter is to protect a motor from overheating,overcurrent, or locked rotor condition. The motor being protected must be wired directly to the output terminals directly with no other equipment(or other motors) on the same circuit. I believe you said you are powering a phase converter with this starter? If so, the entire overload module should be removed and the start/stop circuit reconfigured as a simple power contactor. If any equipment (such as a phase converter) or more than one motor is connected you will not be able to protect the motor or motors with this starter.

I am currently installing 3 SDG-3 Size 1 starters(only one setup as a starter) and one Size 2 8502 SDO1. Running all 220 equipment off starters and contactors, with a single emergency stop to shut off power to everything at once. I am also wiring in indicator lights for status of all states, on, off, breaker off/tripped, emergency stop activated, starter overload activated, etc. I am not sure, but I am thinking of installing solid state over and under voltage shutdown circuit as well as timed off after power outage.

Sorry about the long post...

Just Bob
 
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notso

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Mar 10, 2010
Messages
22
This starter is only running one thing my phase converter. The wirenut mess is because I am on the second starter wires were too short so just for testing purposes i extended the wires. Once I got it working I pulled all new wires. The two wires on t1 and t2 are from phase converter and out to junction box.
 
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