Siemens SINAMICS PM240-2 0.75kW Power Module

Technical Overview

Unfiltered SINAMICS PM240-2 power module with integrated braking chopper, 0.75kW (LO), 1/3AC 200-240V input, IP20.

Key Features

Unfiltered design for direct connection to the line.
Supports both high overload (0.55kW) and low overload (0.75kW) cycles for flexible application.
Compact Frame Size A (FSA) with a width of 73 mm for space-saving cabinet mounting.
IP20 degree of protection / UL open type for installation in control cabinets.
Operates in ambient temperatures up to +50 °C (HO) and +40 °C (LO).
Compatible with SINAMICS G120 Control Units (CU230-2, CU240x-2, CU250S-2).
Internal air cooling for thermal management.
Plug-in screw terminals for reliable line side connections.
Compliance with international standards including UL, cUL, CE, C-Tick (RCM), SEMI F47.

Technical Specification Matrix

Parameter	Value
Input Number of Phases	1 / 3 AC
Input Line Voltage	200 ... 240 V ±10 %
Input Line Frequency	47 ... 63 Hz
Rated Current (LO)	9.60 A / 5.50 A
Rated Current (HO)	8.40 A / 4.80 A
Output Number of Phases	3 AC
Output Rated Voltage	230V IEC / 240V NEC
Output Rated Power (LO)	0.75 kW (1.00 hp)
Output Rated Power (HO)	0.55 kW (0.75 hp)
Output Rated Current (LO)	4.20 A
Output Rated Current (HO)	3.20 A
Max. Output Current	6.40 A
Pulse Frequency	4 kHz
Output Frequency (Vector Control)	0 ... 200 Hz
Output Frequency (V/f Control)	0 ... 550 Hz
Overload Capability (LO)	1.1 x rated output current (110 % overload) for 57s, 1.5 × rated output current (150 % overload) for 3s (cycle time 300s)
Overload Capability (HO)	1.5 × output current rating (150 % overload) for 57s, 2 × output current rating (200 % overload) for 3s (cycle time 300s)
Power Factor λ	0.85
Offset Factor cos φ	0.95
Efficiency η	0.96
Sound Pressure Level (1m)	50 dB
Power Loss	0.04 kW
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)	-25 ... 55 °C (-13 ... 131 °F)
Ambient Temperature (Storage)	-25 ... 55 °C (-13 ... 131 °F)
Relative Humidity (Max. Operation)	95 % RH, condensation not permitted
Line Side Connections	Plug-in screw terminals
Conductor Cross-section	1.00 mm²
Degree of Protection	IP20 / UL open type
Compliance with Standards	UL, cUL, CE, C-Tick (RCM), SEMI F47
Efficiency Class	IE2
Physical Weight (kg)	1.4
Dimensions L x W x H (cm)	18.5 x 9 x 28

Industrial Applications

1. Conveyor Belt Systems with Dynamic Braking

This power module is ideal for controlling motors in conveyor belt systems that demand frequent acceleration and deceleration, such as in automated assembly lines or material handling. The integrated braking chopper efficiently dissipates regenerative energy, ensuring smooth and rapid stops without mechanical wear.

Problem Solved

Prevents overvoltage faults and reduces mechanical braking system wear by effectively handling regenerative energy from frequent starts and stops. The dual overload ratings accommodate varying load profiles.

Regenerative brakingDynamic controlVariable speedOverload capabilityMaterial handlingConveyor systems

2. Energy-Efficient Industrial Pump and Fan Control

The module precisely controls the speed of industrial pumps and fans in environments like HVAC systems or water treatment plants, optimizing energy consumption and process control. Its IP20 rating makes it suitable for secure integration within control cabinets.

Problem Solved

Enables energy-efficient operation by precisely matching motor speed to fluid or airflow requirements, reducing power consumption. The IP20 protection safeguards the unit in typical industrial control cabinet installations.

Variable frequency drive (VFD)Energy efficiencyFluid dynamicsAirflow controlProcess optimizationIP20

3. Small-Scale Industrial Mixer Control with High Torque Start-up

Suitable for controlling electric motors in small industrial mixers or agitators, particularly those with varying loads and requirements for intermittent operation with controlled stopping.

Problem Solved

Manages high initial torque demands during mixer start-up due to its high overload capability. The braking chopper ensures quick and controlled stopping, crucial for process precision and safety in batch operations. Its compact size facilitates integration into existing panels.

Motor controlTorque controlBatch processingOverload protectionCompact designBraking chopper