Product Description
| Product Name | Oil Cooled Permanent Magnet Motor Screw Air Compressor |
| Model : | OCP |
| Voltage: | 380V/50HZ/3P, 220V/60HZ/3P, 400V/50HZ/3P, 415V/50HZ/3P or Customer′s Requirements |
| Working Pressure: | 8~13bar |
| Installed Motor Power: | 7.5~75 Kw |
| Color: | Customer′s Requirements |
| Driven Method: | Belt Driven |
| Transport Package: | Standard Wooden Packing |
| Origin: | ZheJiang , China |
| application: | Dentistry,Laboratory,New Energy |
| Model | Pressure (mpa) |
Displacement (m³/min) |
Power (kw) |
Dimension (mm) |
Weight (kg) |
Outlet Size |
| OCPV-0.7/7.5 | 0.7 | 1.20 | 7.5 | 840*620*850 | 400 | G3/4″ |
| OCPV-0.8/7.5 | 0.8 | 1.10 | ||||
| OCPV-1.0/7.5 | 1.0 | 0.95 | ||||
| OCPV-1.3/7.5 | 1.3 | 0.80 | ||||
| OCPV-0.7/11 | 0.7 | 1.70 | 11 | 1150*750*1571 | 450 | G1″ |
| OCPV-0.8/11 | 0.8 | 1.60 | ||||
| OCPV-1.0/11 | 1.0 | 1.40 | ||||
| OCPV-1.3/11 | 1.3 | 1.20 | ||||
| OCPV-0.7/15 | 0.7 | 2.40 | 15 | 1150*750*1571 | 500 | G1″ |
| OCPV-0.8/15 | 0.8 | 2.20 | ||||
| OCPV-1.0/15 | 1.0 | 2.00 | ||||
| OCPV-1.3/15 | 1.3 | 1.70 | ||||
| OCPV-0.7/22 | 0.7 | 3.80 | 22 | 1300*850*1140 | 600 | Rp1 1/4″ |
| OCPV-0.8/22 | 0.8 | 3.50 | ||||
| OCPV-1.0/22 | 1.0 | 3.20 | ||||
| OCPV-1.3/22 | 1.3 | 2.90 | ||||
| OCPV-0.7/37 | 0.7 | 6.40 | 37 | 1500*950*1230 | 800 | Rp1 1/2″ |
| OCPV-0.8/37 | 0.8 | 6.10 | ||||
| OCPV-1.0/37 | 1.0 | 5.70 | ||||
| OCPV-1.3/37 | 1.3 | 5.00 | ||||
| OCPV-0.7/45 | 0.7 | 8.00 | 45 | 1500*950*1230 | 850 | Rp1 1/2″ |
| OCPV-0.8/45 | 0.8 | 7.70 | ||||
| OCPV-1.0/45 | 1.0 | 7.00 | ||||
| OCPV-1.3/45 | 1.3 | 5.80 | ||||
| OCPV-0.7/55 | 0.7 | 10.50 | 55 | 1500*1100*1450 | 900 | DN50 |
| OCPV-0.8/55 | 0.8 | 9.80 | ||||
| OCPV-1.0/55 | 1.0 | 8.70 | ||||
| OCPV-1.3/55 | 1.3 | 7.60 | ||||
| OCPV-0.7/75 | 0.7 | 13.60 | 75 | 1500*1100*1450 | 950 | DN50 |
| OCPV-0.8/75 | 0.8 | 13.30 | ||||
| OCPV-1.0/75 | 1.0 | 11.60 | ||||
| OCPV-1.3/75 | 1.3 | 9.80 |
Product Features
1. China-Japan latest technology cooperation, high reliability.
2. Oil Cooling Permanent Magnetic Motor.
3. IP65 protection grade & heavy duty air filter, suitable for high dusty environment.
4. IE4 Efficiency motor efficiency.
5. Most energy saving mode, Only work at loading.
6. Wide frequency range 25%-100%.
7. Premium Magnetic material resist more than 180ºC temp.
8. Reliable PM motor supplier from Italy.
9. Direct Taper connection, no transmission power loss, easy maintenance.
10.Touch Screen PLC with preset running schedule, more intelligent control.
11. Both main motor and fan motor are inverter control, more accurate control.
12. Easy for installation and service.
13. Fantastic Energy Saving, save up to more than 30-40%.
Specially designed PM motor:
The PM motor efficiency is even higher than IE3 premium efficiency motors. The motor uses high performance magnetic materials giving many advantages such as bearing free operation, grease free maintenance, direct 1:1 coupling without transmission losses, low noise and low vibration leading to a compact structure.
Enhanced Energy Savings:
When demand is low the PM low pressure compressor firstly reduces the speed to maintain the correct flow demand. If the air demand stops the compressor enters standby mode, saving further energy. The compressor automatically restarts and runs when the pressure drops below its setpoint.
The latest generation intelligent touchscreen controller:
SCR’s latest touchscreen interface allows simple intelligent control for your compressor. Pressure and scheduling times can be easily programmed allowing you to automatically start and stop the compressor to match production times. Remote operation and real time monitoring are built in the controller as standard.
ZheJiang CHINAMFG Gas Compressor Manufacturing Co.,Ltd. founded in 2005, is a leading high technology of machine and equipment manufacturer integrating the design, R&D, production, sales and service for air compressors & Mining Equipment. Adopting advanced technology, design concept and quality control, and we are able to provide customized products to meet customers’ OEM needs.
Our company has more than 520 employees, including 86 senior technicians and professional engineers. Our technical team provides our customers with professional air system solutions. With the total 15000 square meters of the facility, 4 modern advanced production lines are built up to ensure production capacity to meet customer requirements.
Our company has been awarded the honorary title of “ZheJiang high-tech enterprise” and our products enjoy high honors in the industry. Our company has the ISO9001 certification and was awarded the qualification certificate of equipment through military contracts in 2018.
We offer the following products and services:
1. Screw air compressor
1.1 Oil-free screw air compressor
1.2 Oil-injected air compressor
2. Reciprocating piston air compressor
2.1 Piston air compressor
2.2 Oil-free piston air compressor
2.3 Piston medium & high-pressure air compressor
3.Portable air compressor & Mining Equipment
3.1 Diesel or Electric portable screw air compressor
3.2 Air Pick, Rock Drill, DTH Drilling Rig, Crawler Drilling Rig
4. Air compressor accessories
4.1 CHINAMFG or Adsorption compressed air drier
4.2 Compressed air filter or tank
4.3 Lubrication oil
We have a complete system of after-sales service and quality assurance. The company’s material purchase, inspection, manufacturing, installation, and testing are strictly in accordance with the ISO procedures. which will ensure each compressor has reliable quality and has a complete record to trace, if needed.
Q: Do you test all your goods before delivery?
A: Yes, we have 100% test before delivery.
Q: How can we start order with your factory?
A: First, leave us an inquiry and advise which item you’re interested, and then we will contact you in 24 hours. You’re so kind if provide all detailed information, will better for us to know exactly what you need.
Q: What are your MOQ?
A: Different products have different MOQ, most is 1 set.
Q: What is your terms of payment?
A: T/T 30% as deposit, and 70% before delivery. We’ll show you the photos of the products and packages.
Q: How about your delivery time?
A: Generally, it will take 90 days after receiving your advance payment. The specific delivery time depends on the items and the quantity of your order.
Q: Do you a trade company or real factory?
A: We are 100% factory; we located in ZheJiang city, China.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 1 Years |
| Lubrication Style: | Lubricated |
| Cooling System: | Oil-Cooled |
| Power Source: | AC Power |
| Structure Type: | Closed Type |
| Samples: |
US$ 3000/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
|
|
|---|
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What are the advantages of using rotary vane compressors?
Rotary vane compressors offer several advantages that make them a popular choice for various applications. These compressors are widely used in industries where a reliable and efficient source of compressed air is required. Here are the advantages of using rotary vane compressors:
1. Compact and Lightweight:
Rotary vane compressors are typically compact and lightweight compared to other types of compressors. Their compact design makes them suitable for installations where space is limited, such as in small workshops or mobile applications. The lightweight nature of these compressors allows for easy transportation and maneuverability.
2. High Efficiency:
Rotary vane compressors are known for their high efficiency. The design of the vanes and the compression chamber allows for smooth and continuous compression, resulting in minimal energy losses. This efficiency translates into lower energy consumption and reduced operating costs over time.
3. Quiet Operation:
Rotary vane compressors operate with relatively low noise levels. The design of the compressor, including the use of vibration damping materials and sound insulation, helps to minimize noise and vibrations during operation. This makes rotary vane compressors suitable for applications where noise reduction is important, such as in indoor environments or noise-sensitive areas.
4. Oil Lubrication:
Many rotary vane compressors utilize oil lubrication, which provides several benefits. The oil lubrication helps to reduce wear and friction between the moving parts, resulting in extended compressor life and improved reliability. It also contributes to better sealing and improved efficiency by minimizing internal leakage.
5. Versatile Applications:
Rotary vane compressors are versatile and can be used in a wide range of applications. They are suitable for both industrial and commercial applications, including automotive workshops, small manufacturing facilities, dental offices, laboratories, and more. They can handle various compressed air requirements, from light-duty tasks to more demanding applications.
6. Easy Maintenance:
Maintenance of rotary vane compressors is relatively straightforward. Routine maintenance tasks typically include oil changes, filter replacements, and periodic inspection of vanes and seals. The simplicity of the design and the availability of replacement parts make maintenance and repairs easier and more cost-effective.
These advantages make rotary vane compressors an attractive choice for many applications, providing reliable and efficient compressed air solutions.
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How are air compressors utilized in pneumatic tools?
Air compressors play a crucial role in powering and operating pneumatic tools. Here’s a detailed explanation of how air compressors are utilized in pneumatic tools:
Power Source:
Pneumatic tools rely on compressed air as their power source. The air compressor generates and stores compressed air, which is then delivered to the pneumatic tool through a hose or piping system. The compressed air provides the force necessary for the tool to perform various tasks.
Air Pressure Regulation:
Air compressors are equipped with pressure regulation systems to control the output pressure of the compressed air. Different pneumatic tools require different air pressure levels to operate optimally. The air compressor’s pressure regulator allows users to adjust the output pressure according to the specific requirements of the pneumatic tool being used.
Air Volume and Flow:
Air compressors provide a continuous supply of compressed air, ensuring a consistent air volume and flow rate for pneumatic tools. The air volume is typically measured in cubic feet per minute (CFM) and determines the tool’s performance capabilities. Higher CFM ratings indicate that the pneumatic tool can deliver more power and operate at a faster rate.
Tool Actuation:
Pneumatic tools utilize compressed air to actuate their mechanical components. For example, an air-powered impact wrench uses compressed air to drive the tool’s internal hammer mechanism, generating high torque for fastening or loosening bolts and nuts. Similarly, air-powered drills, sanders, nail guns, and spray guns rely on compressed air to power their respective operations.
Versatility:
One of the significant advantages of pneumatic tools is their versatility, and air compressors enable this flexibility. A single air compressor can power a wide range of pneumatic tools, eliminating the need for separate power sources for each tool. This makes pneumatic tools a popular choice in various industries, such as automotive, construction, manufacturing, and woodworking.
Portability:
Air compressors come in different sizes and configurations, offering varying degrees of portability. Smaller portable air compressors are commonly used in applications where mobility is essential, such as construction sites or remote locations. The portability of air compressors allows pneumatic tools to be used in various work environments without the constraints of being tethered to a fixed power source.
Overall, air compressors are integral to the functionality and operation of pneumatic tools. They provide the necessary power, air pressure regulation, and continuous airflow required for pneumatic tools to perform a wide range of tasks efficiently and effectively.
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What is the purpose of an air compressor?
An air compressor serves the purpose of converting power, typically from an electric motor or an engine, into potential energy stored in compressed air. It achieves this by compressing and pressurizing air, which can then be used for various applications. Here’s a detailed explanation of the purpose of an air compressor:
1. Powering Pneumatic Tools: One of the primary uses of an air compressor is to power pneumatic tools. Compressed air can be used to operate a wide range of tools, such as impact wrenches, nail guns, paint sprayers, sanders, and drills. The compressed air provides the necessary force and energy to drive these tools, making them efficient and versatile.
2. Supplying Clean and Dry Air: Air compressors are often used to supply clean and dry compressed air for various industrial processes. Many manufacturing and production operations require a reliable source of compressed air that is free from moisture, oil, and other contaminants. Air compressors equipped with appropriate filters and dryers can deliver high-quality compressed air for applications such as instrumentation, control systems, and pneumatic machinery.
3. Inflating Tires and Sports Equipment: Air compressors are commonly used for inflating tires, whether it’s for vehicles, bicycles, or sports equipment. They provide a convenient and efficient method for quickly filling tires with the required pressure. Air compressors are also used for inflating sports balls, inflatable toys, and other similar items.
4. Operating HVAC Systems: Air compressors play a crucial role in the operation of heating, ventilation, and air conditioning (HVAC) systems. They provide compressed air for controlling and actuating dampers, valves, and actuators in HVAC systems, enabling precise regulation of air flow and temperature.
5. Assisting in Industrial Processes: Compressed air is utilized in various industrial processes. It can be used for air blow-off applications, cleaning and drying parts, powering air-operated machinery, and controlling pneumatic systems. Air compressors provide a reliable and efficient source of compressed air that can be tailored to meet the specific requirements of different industrial applications.
6. Supporting Scuba Diving and Breathing Systems: In scuba diving and other breathing systems, air compressors are responsible for filling diving tanks and supplying breathable air to divers. These compressors are designed to meet strict safety standards and deliver compressed air that is free from contaminants.
Overall, the purpose of an air compressor is to provide a versatile source of compressed air for powering tools, supplying clean air for various applications, inflating tires and sports equipment, supporting industrial processes, and facilitating breathing systems in specific contexts.


editor by CX 2023-10-05
China Good quality Best Selling Made in China 30HP Screw Industrial Air Compressor 22kw 30HP 380V 440V Screw Air Compressor near me factory
Solution Description
Merchandise Description
Item Title:Direct Driven Vitality Saving PM VSD Screw Air Compressor
Power: 7.5KW 10HP
Pressure: .6-1.25Mpa
Air Flow: .4-1.1m3/min
Motor: Long term Magent IP23 motor
Air Finish: CZPT Brand name
Noise: 62±2dBA
Dimensions: 900*600*850mm
Excess weight: 120kg
Detailed Pictures
Item Parameters
Our Benefits
Company Profile
FAQ
Q1: Guarantee phrases of your machine?
A1: One particular 12 months warranty for the equipment and technological support in accordance to your needs.
Q2: Will you provide some spare areas of the devices?
A2: Of course, of course.
Q3: What about merchandise deal?
A3: We pack our goods strictly with normal seaworthy case.
Q4: Can you use our brand?
A4: Indeed, OEM is obtainable.
Q5: How long will you get to prepare manufacturing?
A5: 380V 50HZ we can delivery the goods within 3-15 times. Other voltage or other color we will supply in twenty five-thirty days.
Q6: How A lot of Employees Are There In your Manufacturing facility?
A6: About one hundred.
Q7: What is actually your factory’s manufacturing capacity?
A7: About 2000 units for each thirty day period.
| Model | Pressure | Air Flow | Power | Noise | Air Outlet Size | Weight | Dimensions |
| GTA-5.5PM | 8bar/116psi | 0.6m3/min | 4kw/5.5hp | 63 | G 3/4 | 110 | 900*600*850 |
| GTA-7.5PM | 8bar/116psi | 0.85m3/min | 5.5kw/7.5hp | 68 | G 3/4 | 120 | 900*600*850 |
| GTA-10PM | 8bar/116psi | 1.1m3/min | 7.5kw/10hp | 68 | G 3/4 | 120 | 900*600*850 |
| GTA-15PM | 8bar/116psi | 1.8m3/min | 11kw/15hp | 70 | G 1 | 200 | 1000*700*1000 |
| GTA-20PM | 8bar/116psi | 2.3m3/min | 15kw/20hp | 70 | G 1 | 200 | 1000*700*1000 |
| GTA-25PM | 8bar/116psi | 2.9m3/min | 18.5kw/25hp | 72 | G 1 | 300 | 1300*790*1150 |
| GTA-30PM | 8bar/116psi | 3.3m3/min | 22kw/30hp | 72 | G 1 | 300 | 1300*790*1150 |
| GTA-40PM | 8bar/116psi | 4.7m3/min | 30kw/40hp | 72 | G 1 1/2 | 320 | 1300*790*1150 |
| GTA-50PM | 8bar/116psi | 6.2m3/min | 37kw/50hp | 72 | G 1 1/2 | 460 | 1400*950*1310 |
| GTA-60PM | 8bar/116psi | 6.5m3/min | 45kw/60hp | 72 | G1 1/2 | 600 | 1400*950*1310 |
| Model | Pressure | Air Flow | Power | Noise | Air Outlet Size | Weight | Dimensions |
| GTA-5.5PM | 8bar/116psi | 0.6m3/min | 4kw/5.5hp | 63 | G 3/4 | 110 | 900*600*850 |
| GTA-7.5PM | 8bar/116psi | 0.85m3/min | 5.5kw/7.5hp | 68 | G 3/4 | 120 | 900*600*850 |
| GTA-10PM | 8bar/116psi | 1.1m3/min | 7.5kw/10hp | 68 | G 3/4 | 120 | 900*600*850 |
| GTA-15PM | 8bar/116psi | 1.8m3/min | 11kw/15hp | 70 | G 1 | 200 | 1000*700*1000 |
| GTA-20PM | 8bar/116psi | 2.3m3/min | 15kw/20hp | 70 | G 1 | 200 | 1000*700*1000 |
| GTA-25PM | 8bar/116psi | 2.9m3/min | 18.5kw/25hp | 72 | G 1 | 300 | 1300*790*1150 |
| GTA-30PM | 8bar/116psi | 3.3m3/min | 22kw/30hp | 72 | G 1 | 300 | 1300*790*1150 |
| GTA-40PM | 8bar/116psi | 4.7m3/min | 30kw/40hp | 72 | G 1 1/2 | 320 | 1300*790*1150 |
| GTA-50PM | 8bar/116psi | 6.2m3/min | 37kw/50hp | 72 | G 1 1/2 | 460 | 1400*950*1310 |
| GTA-60PM | 8bar/116psi | 6.5m3/min | 45kw/60hp | 72 | G1 1/2 | 600 | 1400*950*1310 |
How to Repair and Maintain an Air Compressor
A compressor is a device used to move air from one place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.
Positive displacement
Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are two types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the two types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.
oil free
If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in one minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.
double acting
A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.
fuel tank pressure switch
You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.
energy source
The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require three separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require three separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.

