Question about Ingersoll Rand - Rand Type - 30 Reciprocating Air Compressor - 5 Hp, 230 Volt 1 Phase, Model - 2340L5

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How do i connect my wilpu pressure control switch for my water pump the specs given are L1 M L2 single phase.

230 VOLT 2pole HP 3PH

Posted by Anonymous on

6 Suggested Answers

6ya6ya
  • 2 Answers

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Posted on Jan 02, 2017

  • 52 Answers

SOURCE: Compressor wired wrong from the factory and will not run.

I cannot find any diagram from this description. do you have a model # of motor?

Posted on Mar 10, 2009

DickCanFixIt
  • 948 Answers

SOURCE: I have 1 black, 1 white and 1 green ground on pressure switch. ?

Black & White would both be 115v on a single phase 230 circuit, green would be ground.

Posted on Jul 20, 2009

  • 54 Answers

SOURCE: how do i connect he differenial pressure switch

Your question is a bit unclear, but I assume you are asking how to wire the pressure switch in a piston compressor.

See the diagram, below.

You should have a wire from the L1 (first incoming main voltage) terminal to the pressure switch, and from the other pressure switch terminal back to the starter coil. You will also have a wire from L2 (second main voltage terminal) to the overload, and from the other overload terminal to the other side of the coil. In this arrangement, the motor starter coil must be rated at the SAME VOLTAGE as your incoming power.

This diagram works the same for single phase machines (they just don't have the third wire coming from the supply through the starter and overload to the motor.

If your machine has other safety controls (like a low oil switch), It can be wired in series with either the pressure switch or the overload.
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Posted on Nov 06, 2009

  • 142 Answers

SOURCE: IR 2475E Wont start up 220 everywhere No LOP switch

did you check for a motor reset button on the motor??

Posted on Feb 21, 2010

heatman101
  • 43501 Answers

SOURCE: i bought a used t-30 ir 7.5 hp compressor that had

Hi,

Here is the starter

http://www.grainger.com/Grainger/SQUARE-D-Magnetic-Motor-Starter-2BX51

here is the pressure switch

http://www.grainger.com/Grainger/SQUARE-D-Pressure-Switch-2FG88

Run the 120v for the coil on the starter through the pressure switch and your good to go!!!

heatman101

Posted on Jan 20, 2011

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I have an old air compressor that I have replaced the motor magstart and pressure switch on the motor is a 220 / 240 volt 5 horsepower motor it also has a low pressure oil cutoff switch does anybody have a...


Control: L1-SS-P-O-OL-OL-M-L2 In series, L1 is line 1, SS is start/stop switch, P is pressure switch, O is oil switch, OL is overload contact, M is magnetic coil (solenoid), L2 is line 2.
The voltage of M must be rated for the control voltage, across the line voltage (240V) or of a control transformer voltage, e.g. 240v/24v. A control voltage would be wired across the line, to L1 and L2.
Power: L1-T1-OL-M1, L2-T2-OL-M2. Line one to Line 1 on contactor, T1 on contactor jumpered to OL (overload heater) and out the overload heater terminal M1 to the motor terminal 1. Same for line 2, Line 2 to L2 on contactor, T2 on contactor jumpered to OL (overload heater) and out the heater overload terminal to M2 motor terminal.
The heater overload relays needs to be chosen by the motor full load current, a chart is given with a motor starter on selecting heater size. If no chart is available, go 115% of the motor FLA (full load amps) to select a heater size. E.G. 25 FLA motor at 115% is 28.75a. Sorry, no schematic available now, draw your own from this info. If using 3 phase, add the third line as duplicating one other line1 or line 2

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Markings on knob differ from spec sheet


Its common for replacement switches to be different then the original because the original has gone obsolete. Usually the replacement comes with a wire diagram. Given the numbers you have provided I don't think that switch you have is compatible but I wouldn't know unless I seen it.

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How do I wire my puma 220v sigle phase air compressor with s-p40t motor starter?


You contactor /motor starter has connection for up to three phase /L1 thru L3. You will be only using L1 and L2 connectors for power-in/ line and using meter find cross connector for connecting load / motor (usually white and black or red from the motor). The contactor has a push button to test your work (use meter to test before actually wiring up motor and line). The contactor is controlled by separate switch (usually pressure switch on the compressor) using proper voltage as required by magnetic switch of s-p40t. Good luck

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Does it matter wrong connection (switching cables) on a single phase electric mottor


Most larger 120 V motors have the option to be wired for 240 V, and as a result need half the current - which translates to lower installtion costs do to a wire size the can be reduced.

These motors have simple terminals like L1, L2 and two or more similar to 1, 2, 3, 4 or A, B, etc. that can be connected that permits selecting rotation direction, speed(s) and voltages.

Nearly all these motors will require that L1 and L2 terminals be connected to the power, whether it is a hot and neutral for a 120 v supply, or hot and hot as would be the case for a 240 v supply. It would then require the correct connection / jumper connection of the other terminals to tell the motor which voltage is being supplied. An incorrect combination here could be disastrous. Either way, L1 & L2 is power in. Consult the label on the motor to correct wiring - and if by chance one of the L1 or L2 terminals is specified for neutral, it should be connected that way.

I hope this helps & good luck!

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I need to hookup up a Grasslin GM40 timer controlling one load and a 120vac application. Just wondering if someone could verify the hookup terminals as I cannot read the schematic as it is mostly gone. ...


Open following links to identify timer and download manual:
http://waterheatertimer.org/Intermatic-timers-and-manuals.html#GM

GM40 can be used for 120V or 240V 277V applications for single-phase and some 3-phase applications.
For 120Volt, set all 4 dip switches to ON position BEFORE applying power.
ON position is pushed to left.

120Volt cable from breaker box has black hot and white neutral wire.
Black hot typically connects to terminal L1
White neutral connects to terminal L2/N
This action will power the time clock and relays.

Other terminals on GM40 are the relay terminals, and these terminals are dry.
Dry means they receive no power when wires are connected to L1 and L2/N.

There are two independent relays and each relay has 3 terminals: NC NO and COM.
If you are controlling one 120volt Load, then use one relay.
Run a jumper wire from terminal L1 to COM terminal.
So COM terminal is connected to Hot.

Cable going to 120V Load has black and white wire.
Connect black Load wire to terminal NO (normally open).
Connect white Load wire to L2/N.

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Is it going to run on 230V then? If so you would normally use red and black. The white wire should be a neutral and the ground wire is obviously ground.

Do you have a meter you can use to confirm the voltage between the wires? If you do you'll want to start with red and white since you seem to think black was not being used before. If the voltage reads 230 and the motor is set up for 230 then attach one wire to L1 and the other to L2...it will not matter which is connected where as long as one is on each terminal. Insulate the black and ground the ground lead to the motor ground screw.

If the voltage is not 230 between those two check between red and black. If that is the 230 then insulate white and put red and black to L1 and L2.

John

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I take it the wiring harness in front of me is 3 Phase. I have a Green wire, Red, Black and White. The wiring diagram on the back is marked L1, L2, N, E. Just need to know which wire goes where thanks.


It is not 3 phase...just single phase 240V....L1 goes to the one hot side of the 240 v, l2 goes to the other hot side of the 240V, N goes to neutral, and green goes to earth ground (metal box)
so....L1=Black L2=Red N=White E=Green

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Need to rewire from 480 to 240 need coolant pump diagram for colchester # 348337 3 phase motor


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Connect T2, T4, and T8 together with L2 (B phase)

Connect T3, T5, and T9 together with L3 (C phase)

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I would like to connect a pressure switch to the motor starter


hi! there, single phase compressor motor need a starting capacitor base on the rated capacity in horse power,you can check this on the tag of the compressor motor how many horsepower was indicated,it should be for single phase motor starting capacitor has a capacity of micro farads.for a 1 horsepower = 15 to 18 micro farads stating capacitor if you have more than 1 horsepower you can basically proportion the value of capacitor you need or ask the dealer how much capacitor you need on your motor the connection of pressure switch with a four terminal should be connected both on common line L1 and running capacitor line L2 .if you open the cover of pressure switch there are 4 terminals,2 terminals are connected when normally close or no pressure they connected on series connection on the common line one terminal connected to common line of the compressor and the other terminal on L1 to the pushbutton switch to L1 supply line.the 2 other terminals also connected in series withe line capacitors L2 to yhr power supply line.hope this will help you a lot.just rate my fix thanks a lot.

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