Dominic Greco
01-26-2004, 8:50 AM
Hello Everyone,
This question is directed at those of you who are versed in Electrical Wiring, or have done a good amount of upgrade work on their tools.
I'm in the middle of a massive upgrade project for my 14" Jet Bandsaw. I'm dropping a brand new 2Hp 220V Baldor motor into it, along with new machined sheaves and an industrial link-belt. But this new 2HP motor is 15" long, (about 4 1/2" inches longer than the old 1 HP Taiwanese motor that came with the saw). And since I really didn't want to cut a "window" in the old metal base, I decided to design and fabricate a new closed base.
I'm also adding a 220V 1/4HP 30 CFM filtered cooling fan to the cabinet to help cool the motor. There will be a louvered vent for exhausting hot air on the opposite side of the case from the fan. When I used to resaw with this bandsaw, I noticed the motor got quite hot. At times it was even too hot to touch. I could never understand the logic behind having a totally enclosed fan cooled motor (TEFC) that gets installed in a sealed metal box! There were no vents to draw in cool air at all. (It ran hot,...Go figure!)
I plan on wiring the motor and fan to the same magnetic switch so that they come on at the same time. The amp draw for this fan is a meager 0.08 amps. You don't see any problems with this do you?
I looked through the meager owner's manual (my one major complaint about Jet tools) that came with the saw and noticed diagrams showing how to wire the 1HP motor for 220V. But I did not notice any diagrams showing how to wire the magnetic switch for 220V. I assume that if the motor can be wired for it, so too can the switch.
The specs from Baldor say that the new 2HP motor's Full Load amp draw is 24 A if wired for 110V, 12 A if wired for 220V. I would assume that this existing magnetic switch would have to be rated for that amp draw, and voltage.
Have any of you used this switch in conjunction with a 2Hp 220V motor?
Is there a way for me to find out the specs on this switch? Hopefully without having to call Jet! I'd rather not spend an hour waiting on hold to Jet's Technical Service line to ask someone this question.
If I can't use this switch, I will need to buy a new one. The most likely source is Grizzly. (Part number G4572 which retails for $49.95) However, this switch is rated at 8.5 to 12 amps. I may have to jump up to the 3Hp switch (part number G4573 which retails for $59.95) and is rated at 17 to 24 amps. (BTW, this is the same switch I have on my 3HP Unisaw.)
So what it comes down to is this: If the old switch can handle the amp draw use it. If not, possibly drop another $60.00 for one that can.
As you might have guessed, I really rather not have to spend this kind of money if I don't really need to. I'm already waaaay over budget for this project.
And I really didn't get to the best part about all this upgrade work I'm doing. Once I've completed all this work, I'm giving this bandsaw to my big brother Joe. I have a Jet 18" bandsaw, and I don't have room for two.
Thanks in advance!
This question is directed at those of you who are versed in Electrical Wiring, or have done a good amount of upgrade work on their tools.
I'm in the middle of a massive upgrade project for my 14" Jet Bandsaw. I'm dropping a brand new 2Hp 220V Baldor motor into it, along with new machined sheaves and an industrial link-belt. But this new 2HP motor is 15" long, (about 4 1/2" inches longer than the old 1 HP Taiwanese motor that came with the saw). And since I really didn't want to cut a "window" in the old metal base, I decided to design and fabricate a new closed base.
I'm also adding a 220V 1/4HP 30 CFM filtered cooling fan to the cabinet to help cool the motor. There will be a louvered vent for exhausting hot air on the opposite side of the case from the fan. When I used to resaw with this bandsaw, I noticed the motor got quite hot. At times it was even too hot to touch. I could never understand the logic behind having a totally enclosed fan cooled motor (TEFC) that gets installed in a sealed metal box! There were no vents to draw in cool air at all. (It ran hot,...Go figure!)
I plan on wiring the motor and fan to the same magnetic switch so that they come on at the same time. The amp draw for this fan is a meager 0.08 amps. You don't see any problems with this do you?
I looked through the meager owner's manual (my one major complaint about Jet tools) that came with the saw and noticed diagrams showing how to wire the 1HP motor for 220V. But I did not notice any diagrams showing how to wire the magnetic switch for 220V. I assume that if the motor can be wired for it, so too can the switch.
The specs from Baldor say that the new 2HP motor's Full Load amp draw is 24 A if wired for 110V, 12 A if wired for 220V. I would assume that this existing magnetic switch would have to be rated for that amp draw, and voltage.
Have any of you used this switch in conjunction with a 2Hp 220V motor?
Is there a way for me to find out the specs on this switch? Hopefully without having to call Jet! I'd rather not spend an hour waiting on hold to Jet's Technical Service line to ask someone this question.
If I can't use this switch, I will need to buy a new one. The most likely source is Grizzly. (Part number G4572 which retails for $49.95) However, this switch is rated at 8.5 to 12 amps. I may have to jump up to the 3Hp switch (part number G4573 which retails for $59.95) and is rated at 17 to 24 amps. (BTW, this is the same switch I have on my 3HP Unisaw.)
So what it comes down to is this: If the old switch can handle the amp draw use it. If not, possibly drop another $60.00 for one that can.
As you might have guessed, I really rather not have to spend this kind of money if I don't really need to. I'm already waaaay over budget for this project.
And I really didn't get to the best part about all this upgrade work I'm doing. Once I've completed all this work, I'm giving this bandsaw to my big brother Joe. I have a Jet 18" bandsaw, and I don't have room for two.
Thanks in advance!