Siemens SINAMICS PM240-2 Power Module 3kW/4hp

Technical Overview

Unfiltered SINAMICS PM240-2 power module with integrated braking chopper, 380-480V 3AC input, 3kW LO / 2.2kW HO, IP20 rated.

Key Features

Unfiltered power module design.
Integrated braking chopper.
Input voltage range: 380-480 V 3 AC.
Supports both Low Overload (LO) and High Overload (HO) applications.
Degree of protection IP20 / UL open type.
Designed for installation in control cabinets.
Part of the modular SINAMICS G120 converter system.
Compatible with SINAMICS G120 Control Units (e.g., CU230-2, CU240x-2, CU250S-2).

Technical Specification Matrix

Parameter	Value
Input Number of Phases	3 AC
Input Line Voltage	380 ... 480 V ±10 %
Input Line Frequency	47 ... 63 Hz
Input Rated Current (LO)	10.10 A
Input Rated Current (HO)	8.80 A
Output Number of Phases	3 AC
Output Rated Voltage	400V IEC, 480V NEC
Output Rated Power (LO)	3.00 kW (4.00 hp)
Output Rated Power (HO)	2.20 kW (3.00 hp)
Output Rated Current (LO)	7.70 A
Output Rated Current (HO)	5.90 A
Max. Output Current	11.80 A
Pulse Frequency	4 kHz
Output Frequency for Vector Control	0 ... 200 Hz
Output Frequency for V/f Control	0 ... 550 Hz
Overload Capability (LO)	1.1 x rated output current for 57s (110%), 1.5 x rated output current for 3s (150%) with 300s cycle time.
Overload Capability (HO)	1.5 x rated output current for 57s (150%), 2 x rated output current for 3s (200%) with 300s cycle time.
Power Factor λ	0.85
Offset Factor cos φ	0.95
Efficiency η	0.96
Sound Pressure Level (1m)	72 dB
Power Loss	0.12 kW
Filter Class (Integrated)	Unfiltered
Cooling	Internal air cooling
Cooling Air Requirement	0.005 m³/s (0.177 ft³/s)
Installation Altitude	1,000 m (3,280.84 ft)
Ambient Temperature Operation (LO)	-10 ... 40 °C (14 ... 104 °F)
Ambient Temperature Operation (HO)	-10 ... 50 °C (14 ... 122 °F)
Ambient Temperature Transport/Storage	-25 ... 55 °C (-13 ... 131 °F)
Relative Humidity (Max. operation)	95 % RH, condensation not permitted
Degree of Protection	IP20 / UL open type
Physical Weight (kg)	1.38
Dimensions L x W x H (cm)	8 x 27 x 19

Industrial Applications

1. Conveyor Belt Systems with Frequent Stopping

This power module can precisely control the speed and direction of three-phase AC motors in conveyor systems, handling both continuous operation and frequent stopping/starting cycles.

Problem Solved

The integrated braking chopper efficiently dissipates regenerative energy generated during deceleration, protecting the drive and motor from overvoltage, especially in applications with high inertia or frequent stops, thus extending equipment lifespan and improving safety.

3-phase AC motor controlregenerative brakinghigh inertiafrequent stop/start380-480V3kW

2. Pump and Fan Control in HVAC Systems

The module provides variable frequency drive capabilities for optimizing the speed of pumps and fans in industrial HVAC or fluid transfer systems.

Problem Solved

By precisely controlling motor speed, it allows for demand-driven operation, reducing energy consumption significantly compared to traditional on/off control or throttled systems. The IP20 rating makes it suitable for enclosure integration in controlled environments.

Variable Frequency Drive (VFD)energy efficiency3-phase pump/fan380-480VIP20HVAC

3. Light-Duty Machine Tool Spindle Control

This power module can be used for controlling the speed of light-duty machine tool spindles, where precise speed regulation and controlled deceleration are critical for machining accuracy and tool life.

Problem Solved

The vector control capability (0-200 Hz output frequency) allows for precise speed and torque control, which is essential for various machining operations. The integrated braking chopper manages deceleration without external braking resistors for many light-duty applications.

Vector controlspindle speed controllight-duty machining3-phase motor380-480V0-200Hz outputintegrated braking