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Siemens SIMOTICS SD IE3 Three Phase Induction Motor, 0.37 kW, 4 Pole, Frame 71M, B5 Flange Mount, IP55 – 1LE7503-0CB32-3FA4

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Best Price (Excl. GST):
10,005 / nos MRP: ₹33,350 / nos
GST (18%): 1,801
Total Price (Incl. GST): ₹11,806
You Save: ₹23,345 (70%)
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Product Description

The Innomotics Cast Iron Motor – 0.37 kW (0.5 HP), Frame 71, Flange Mount, Model 1LE7503-0CB32-3FA4 is a compact, high-efficiency industrial motor designed for precision applications where space-saving installation and direct flange coupling are essential. Built with advanced engineering and robust cast iron construction, this motor ensures reliable performance, energy efficiency, and long operational life in light-duty industrial environments.

With a power rating of 0.37 kW (0.5 HP), this motor is ideally suited for applications such as small pumps, fans, blowers, conveyors, gearboxes, and light industrial machinery. The Frame 71 size offers a compact footprint, making it perfect for installations where space is limited while still maintaining excellent performance.

The motor is designed with a flange mounting configuration (B5/B14), allowing direct coupling to driven equipment. This ensures precise alignment, reduces installation complexity, and minimizes vibration during operation. Flange-mounted motors are especially preferred in applications requiring compact assembly and efficient power transmission.

Constructed with a heavy-duty cast iron housing, the motor provides superior mechanical strength, vibration resistance, and protection against harsh environmental conditions. The cast iron body enhances heat dissipation, ensuring stable operation even during prolonged use. Compared to aluminum motors, this design offers greater durability and reliability.

The motor features an energy-efficient electromagnetic design, reducing power losses while maintaining consistent output performance. This helps lower electricity consumption and operational costs, making it a cost-effective and environmentally friendly solution for industrial users.

Equipped with a TEFC (Totally Enclosed Fan Cooled) enclosure, the motor is fully protected against dust, moisture, and external contaminants. The integrated cooling fan ensures efficient heat dissipation, maintaining optimal operating temperature and extending the motor’s service life.

Designed for S1 continuous duty, the motor can operate continuously without overheating or performance degradation. Its precision-engineered rotor and stator ensure smooth rotation, stable torque output, and low noise levels, even under varying load conditions.

The motor is compatible with Variable Frequency Drives (VFDs), enabling speed control and improved process efficiency. This makes it suitable for modern automation systems where flexibility and energy optimization are important.

Installation and maintenance are simple due to its compact design and standardized flange mounting. The accessible terminal box allows easy wiring, while the durable construction minimizes maintenance requirements and reduces downtime.

This motor is widely used in industries such as automation, packaging, HVAC, small machinery manufacturing, and light industrial processing. Typical applications include pumps, ventilation systems, conveyors, and gear-driven equipment where compact size and reliability are essential.

In conclusion, the Innomotics Cast Iron Motor 0.37 kW, 0.5 HP, Frame 71 Flange Mount is a reliable, efficient, and durable solution for light-duty industrial applications. Its compact design, robust construction, and energy efficiency make it an excellent choice for modern industrial systems.

Technical Specifications

 General Details

  • Brand: Innomotics
  • Model: 1LE7503-0CB32-3FA4
  • Motor Series: 1LE7 Cast Iron Series
  • Motor Type: Squirrel Cage Induction Motor
  • Frame Size: 71
  • Mounting Type: Flange Mount (B5/B14)
  • Number of Poles: 4 Pole

⚡ Electrical Specifications

  • Rated Power: 0.37 kW / 0.5 HP
  • Rated Voltage: 380–415V (±10%)
  • Frequency: 50 Hz
  • Phase: 3 Phase
  • Rated Current: ~1.0 – 1.2 A
  • Power Factor (cosφ): ~0.70 – 0.75
  • Efficiency Class: IE2 / IE3
  • Efficiency (@ Full Load): ~70% – 75%
  • Starting Current: 5–6 × In
  • Starting Torque: ≥ 1.8 × Rated Torque

🔧 Mechanical Specifications

  • Speed: ~1440 RPM
  • Rated Torque: ~2.4 Nm
  • Direction of Rotation: Reversible
  • Cooling Method: IC411 (TEFC)
  • Bearing Type: Deep Groove Ball Bearings
  • Lubrication: Pre-lubricated (grease)
  • Shaft Material: High-grade steel
  • Vibration Level: Low vibration (IEC compliant)

🌡️ Thermal & Protection

  • Insulation Class: F
  • Temperature Rise: Class B limits
  • Protection Class: IP55
  • Ambient Temperature: -20°C to +40°C
  • Altitude: Up to 1000 m
  • Thermal Protection: Optional (PTC/Thermistor)

🔩 Installation & Build

  • Body Material: Cast Iron
  • Terminal Box: Top mounted, rotatable
  • Cable Entry: Standard industrial glands
  • Mounting: Direct flange coupling
  • Standards: IEC / IS compliant

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