1LA7133-4AA90-Z Siemens motor

The Siemens 1LA7133-4AA90-Z is a three-phase squirrel-cage motor from Siemens' SIMOTICS GP series, designed for general-purpose industrial applications.

Key Specifications:

• Rated Power: 7.5 kW (approximately 10 HP)
• Speed: 1500 RPM at 50 Hz (4-pole design)
• Voltage: Suitable for various voltages; specific voltage ratings can be customized based on application requirements.
• Frame Size: 132M
• Mounting Type: IM B3 (foot-mounted configuration)
• Protection Class: IP55 (dust-protected and resistant to water jets)
• Energy Efficiency Class: IE1 (Standard Efficiency)

Special Features (as indicated by the "-Z" suffix):

• A11: Equipped with PTC thermistor motor protection, utilizing three integrated temperature sensors for enhanced safety.

Comparison to Your Requirements:

• Power Rating: Your application requires a motor with a power rating of 6.8 kW. The 1LA7133-4AA90-Z offers 7.5 kW, which is slightly higher but generally acceptable, as motors are often selected with a power rating above the required load to ensure reliable operation.

• Speed: Both motors operate at 1500 RPM at 50 Hz, which aligns with your requirement of 1465 RPM.

• Frame Size: The 1LA7133-4AA90-Z has a frame size of 132M, which is smaller than the 160M frame size of your current motor. This difference may affect mounting compatibility and physical dimensions.

• Protection Class: Both motors have an IP55 rating, suitable for industrial environments.

Considerations:

• Frame Size Compatibility: The difference in frame sizes (132M vs. 160M) may require modifications to the mounting arrangement or base to accommodate the smaller frame size of the 1LA7133-4AA90-Z.

• Voltage Rating: Ensure that the voltage rating of the 1LA7133-4AA90-Z matches your application's requirements.

• Energy Efficiency: The 1LA7133-4AA90-Z is rated at IE1 (Standard Efficiency). If energy efficiency is a priority, you might consider models with higher efficiency ratings, such as IE2 or IE3.