Siemens SINAMICS PM240-2 Power Module 1.1kW IP20

Technical Overview

Unfiltered 3-phase 380-480V AC power module with integrated braking chopper, 0.75kW HO / 1.1kW LO, IP20 rated.

Key Features

Integrated braking chopper for energy recovery and dynamic braking.
Unfiltered power module design.
Dual-rated for High Overload (HO) at 0.75kW and Low Overload (LO) at 1.1kW.
Compact dimensions (196x 73x 165 mm HxWxD) for space-saving installations.
Internal air cooling system.
Compatible with SINAMICS G120 control units, requiring firmware version V4.6 or higher.
Operates with 3-phase AC input voltage from 380V to 480V ±10%.
Input line frequency of 47-63 Hz.
IP20 degree of protection, suitable for installation within a control cabinet.
Equipped with plug-in screw terminals for line side connections.

Technical Specification Matrix

Parameter	Value
Input Voltage (3-phase AC)	380 - 480 V ±10%
Line Frequency	47 - 63 Hz
Rated Power (Low Overload - LO)	1.10 kW (1.50 hp)
Rated Power (High Overload - HO)	0.75 kW (1.00 hp)
Rated Current Input (LO)	4.10 A
Rated Current Input (HO)	3.30 A
Rated Current Output (LO)	3.10 A
Rated Current Output (HO)	2.20 A
Max. Output Current	4.70 A
Output Frequency (V/f control)	0 - 550 Hz
Output Frequency (Vector control)	0 - 200 Hz
Degree of Protection	IP20 / UL open type
Operating Ambient Temperature (LO)	-10 to +40 °C
Operating Ambient Temperature (HO)	-10 to +50 °C
Storage/Transport Temperature	-25 to +55 °C
Efficiency η	0.96
Power Factor λ	0.85
Cooling	Internal air cooling
Physical Weight (kg)	1.38
Dimensions L x W x H (cm)	18.5 x 9 x 28

Industrial Applications

1. Variable Speed Control for Conveyor Systems

This power module is ideal for controlling motors in low to medium-duty conveyor belt systems, where precise speed and torque adjustments are critical for material handling efficiency. Its 380-480V 3AC input and 1.1kW (LO) output power are suitable for typical conveyor motor sizes.

Problem Solved

Provides precise speed control and efficient deceleration for varying loads, preventing mechanical shock and optimizing throughput, while the integrated braking chopper handles kinetic energy during stops. The IP20 rating requires a protective enclosure in industrial settings.

Variable speed driveConveyor motor control380-480V ACBraking chopperLow Overload (LO)IP20

2. Optimized Pump and Fan Control

Suitable for industrial pump and fan applications in HVAC, water treatment, or process cooling systems that benefit from variable speed operation to match demand. The module's ability to drive motors up to 1.1kW (LO) within a 380-480V 3AC supply allows for significant energy savings and process optimization.

Problem Solved

Enables demand-driven flow/pressure control, reducing energy consumption compared to fixed-speed operation. The integrated braking chopper efficiently manages motor deceleration, minimizing wear and tear on mechanical components. IP20 ensures protection within a control cabinet environment.

Variable frequency drive (VFD)Pump controlFan controlEnergy efficiency380-480V AC0-550 Hz output frequency

3. Agitator and Mixer Drive Control

Effectively controls industrial agitators and mixers that experience fluctuating load conditions, such as during batch processing or changes in material viscosity. The dual-rated power (0.75kW HO / 1.1kW LO) ensures robust performance under varying torque demands, typical in mixing applications.

Problem Solved

Manages transient and continuous loads effectively, providing stable operation and preventing motor overstress during start-up or material density changes. The 3-phase 380-480V input is standard for heavy-duty mixing equipment, and the IP20 rating necessitates installation in a protective cabinet.

Motor controlHigh Overload (HO)Low Overload (LO)380-480V ACIndustrial mixingTorque control