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https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl DIY Forum >> Electrical Questions >> 3 phase dol starter https://www.askthetrades.co.uk/cgi-bin/yabb/YaBB.pl?num=1235675426 Message started by bri on Feb 26^th, 2009, 7:10pm

Title: 3 phase dol starter
Post by bri on Feb 26^th, 2009, 7:10pm

can some one please help me i need to add a safety switch to a direct on line starter with overload realy stuck without it and must be done

please help

its a Telemecanique LE1D25V7 by the way if this helps

Title: Re: 3 phase dol starter
Post by Zambezi on Feb 26^th, 2009, 7:34pm

Do you mean you need to add a switch (like emergency stop) to the DOL circuit?

Title: Re: 3 phase dol starter
Post by bri on Feb 26^th, 2009, 7:53pm

yeah just need the motor to stop when the door is opened

thanks

Title: Re: 3 phase dol starter
Post by Goodsparks on Feb 26^th, 2009, 8:35pm

Can't find a sensible link to the product, so without looking... remove the link wire from the A1 terminal inside, connect this to the 'C' Terminal on your interlock (safety) switch. Connect the NC terminal of the switch back to the A1 terminal on the contactor.

If correct, the switch will interupt the contactor when operated, the contact will be re energised when the switch is closed and the start button is pressed.

Paul

Title: Re: 3 phase dol starter
Post by bri on Feb 26^th, 2009, 8:48pm

great thank you i am going to buy a new unit any way and can i just check if i need a 415 volt coil there is no neutral just the 3 phases and earth if that helps also not sure if the over load is correct the motor is 15 hp dont want to buy like for like if its wrong!

Title: Re: 3 phase dol starter
Post by Lectrician on Feb 26^th, 2009, 9:02pm

Bear in mind that your should fuse the control circuit down if taking from the DOL enclosure. Especially if the DOL starter is supplying a motor of that size.

Title: Re: 3 phase dol starter
Post by bri on Feb 26^th, 2009, 9:07pm

i have a 1.5 amp quick blow fuse and holder for the switch as the switches instuctions said if thats what you mean?