Siemens SINAMICS PM240-2 Power Module 0.75kW

Technical Overview

3-phase 380-480V Power Module with 0.75kW (LO) / 0.55kW (HO) output, integrated Class A filter and braking chopper, IP20 rated.

Key Features

Integrated Class A filter to limit radio frequency interference.
Built-in braking chopper for dynamic braking requirements.
Dual Overload Capability: High Overload (HO) 0.55kW and Low Overload (LO) 0.75kW.
Suitable for 3-phase AC motors.
IP20 degree of protection for installation in control cabinets.
Internal air cooling.
Compact FSA frame size (196 x 73 x 165 mm).
Can be flexibly combined with SINAMICS G120 Control Units (CU230-2, CU240x-2, CU250S-2).

Technical Specification Matrix

Parameter	Value
Input Voltage	380-480 V AC (3-phase), ±10%
Input Frequency	47-63 Hz
Rated Power (Low Overload LO)	0.75 kW (1.00 hp)
Rated Power (High Overload HO)	0.55 kW (0.75 hp)
Rated Current (Low Overload LO)	2.2 A
Rated Current (High Overload HO)	1.7 A
Max. Output Current	3.4 A
Output Voltage	400V IEC / 480V NEC (3-phase)
Output Frequency (V/f control)	0-550 Hz
Output Frequency (Vector control)	0-200 Hz
Pulse Frequency	4 kHz
Degree of Protection	IP20 / UL open type
Cooling	Internal air cooling
Ambient Temperature (Operation LO)	-10 to +40 °C
Ambient Temperature (Operation HO)	-10 to +50 °C
Filter Class	Class A (integrated)
Efficiency η	0.96
Physical Weight (kg)	1.55
Dimensions L x W x H (cm)	18.5 x 9 x 28

Industrial Applications

1. Conveyor Belt Systems with Frequent Starts/Stops

This power module is ideal for controlling conveyor belt motors that require frequent acceleration and deceleration cycles. The integrated braking chopper facilitates rapid and controlled stops, protecting mechanical components from wear and ensuring precise material positioning. The 0.75 kW (LO) power rating is suitable for smaller to medium-sized conveyor applications.

Problem Solved

Provides precise speed and torque control for intermittent operations, reducing mechanical stress and energy waste during dynamic braking.

Braking ChopperDynamic BrakingMotor ControlConveyor Systems0.75 kW

2. Industrial Pumps and Fans in Controlled Environments

Given its 0.75 kW (LO) power rating, 380-480V input, and IP20 rating, this module is well-suited for variable speed control of pumps and fans installed within industrial control cabinets. The integrated Class A filter minimizes electromagnetic interference, which is crucial in environments with sensitive electronic equipment.

Problem Solved

Enables energy-efficient operation by adjusting pump/fan speed according to demand, while maintaining electromagnetic compatibility within the control system.

Variable Speed DrivePump ControlFan ControlIP20Class A Filter0.75 kW

3. General Machinery with High Overload Demands

With its High Overload (HO) capability of 0.55 kW at 200% for 3 seconds, this power module can manage machinery that experiences brief, high-torque demands such as certain processing machines or small mixers. The -10 to +50 °C ambient temperature range (HO) ensures reliable operation in typical industrial settings.

Problem Solved

Offers robust power delivery for applications requiring short-duration high-torque starts or peak loads, without compromising the drive's integrity.

High OverloadTorque ControlIndustrial Machinery380-480V50 °C Operating Temperature