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Cast Iron Three Phase Electric Motor

Cast Iron Three Phase Electric Motor Specification

Poles Number
2, 4, 6, 8

Starting Type
Direct On Line (DOL)

Standard
IS 325, IEC 60034

Ambient Temperature
-15C to +40C

Bearing Type
Double Sealed Ball Bearings

Horse Power
0.5 HP to 500 HP

Rated Voltage
415 V

Power Rating
0.37 kW to 375 kW

Cooling Method
IC411

Pressure
Atmospheric

Voltage
415 V

Torque
High Starting and Running Torque

Rated Frequency
50 Hz

Sealed Type
Totally Enclosed

Efficacy
Up to 95%

Motor Type
Squirrel Cage Induction Motor

Features
High durability, corrosion resistance, heavy duty design, efficient cooling fins

Current Type
AC

Noise Level
Low

Product Type
Cast Iron Three Phase Electric Motor

Output Power
Up to 500 HP

Frequency (MHz)
50/60

Protect Feature
Totally Enclosed Fan Cooled (TEFC)

Phase
Three Phase

Speed
1440/2880 RPM

Power
3.7 kW to 375 kW

Color
Blue/Custom Coating

Dimension (L*W*H)
Customized as per rating

Weight
Varies with model (20 kg - 1500 kg)

Shaft Diameter
Varies by model (standardized as per IEC/IS)

Mounting Type
Foot or Flange Mounted

IP Rating
IP55

Thermal Protection
PTC Thermistors available on request

Connection Type
Star/Delta

Balancing
Dynamically balanced rotor

Vibration Level
Within specified limits (IS: 12075)

Insulation Class
F/B

Paint Finish
High-quality epoxy powder coated

Frame Size
63 to 355 mm

Altitude
Up to 1000 m above sea level

Duty Cycle
S1 Continuous

Lubrication
Pre-lubricated bearings; maintenance free

About Cast Iron Three Phase Electric Motor

With use of quality-management system we achieve excellence in all business operations. We are not only focusing on order-fulfillment process but also promoting continuous improvement of our quality of our products. We develop a culture of selfconfidance, best skill & recources to maintain its competitive advantage. We not only provide customer-satisfactions through technology but also deliver real business benefits. Hence we exploit technologies to maximize convenience of customers.

Superior Construction for Longevity

Designed with a rugged cast iron frame and corrosion-resistant epoxy powder coating, this motor ensures long service life even in harsh industrial environments. The dynamically balanced rotor and totally enclosed fan cooled (TEFC) protection provide smooth operation and enhanced safety.

Efficient and Maintenance-Free Performance

Utilizing F/B insulation and pre-lubricated double sealed ball bearings, the motor operates efficiently with minimal maintenance. With an efficiency rating of up to 95% and high starting torque, it supports continuous heavy-duty operations effortlessly.

Customized Solutions for Varied Applications

Offered in a range of frame sizes (63 to 355 mm), power ratings (0.37 kW to 375 kW), and speed settings, this motor can be tailored to specific requirements. Optional features such as PTC thermistors add thermal protection, while mounting and connection types provide flexible integration.

FAQ's of Cast Iron Three Phase Electric Motor:

Q: How does the insulation class F/B benefit the motor's performance?

A: The F/B insulation class allows the motor to operate efficiently at higher temperatures, increasing durability and reducing the risk of insulation failure during continuous duty cycles (S1), which is ideal for industrial environments.

Q: What is the process for installing this three phase electric motor?

A: Installation typically involves securing the motor via foot or flange mounting, connecting it using star/delta configuration as per your system requirements, and verifying correct alignment and voltage connections. Detailed guidelines are provided as per IEC/IS standards.

Q: When should thermal protection with PTC thermistors be requested?

A: PTC thermistors should be considered in applications with frequent load fluctuations, high ambient temperatures, or where additional safety against overheating is required. They provide early warning and automatic protection against thermal overload.

Q: Where is this electric motor best utilized?

A: This motor is optimal for industrial applications such as pumps, compressors, conveyors, and fans, especially in factories and plants where a reliable, high-torque, and efficient drive solution is essential.

Q: What are the advantages of the pre-lubricated bearings and TEFC design?

A: Pre-lubricated, double sealed bearings ensure maintenance-free operation and greater longevity, while the Totally Enclosed Fan Cooled (TEFC) enclosure protects internal components from dust, moisture, and debris, ensuring safe and reliable performance.

Q: How does dynamic rotor balancing affect the motor's operation?

A: Dynamic rotor balancing reduces vibration levels (within IS:12075 limits), minimizing wear and tear and ensuring smooth, noise-free operation, which enhances the lifespan and performance stability of the motor.

Q: What is the benefit of having customizable frame sizes and mounting options?

A: Customizable frame sizes and mounting options allow for seamless integration into diverse machinery setups, catering to unique operational needs and installation environments without compromising performance or efficiency.

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