Siemens SINAMICS G120 PM240-2 45kW Power Module

Technical Overview

380-480V 45kW (LO) power module with built-in braking chopper, IP20, and -20 to 50 °C operation for precise motor control.

Key Features

Built-in braking chopper for dynamic applications.
IP20 / UL open type degree of protection.
Supports both High Overload (HO) and Low Overload (LO) operation modes.
Input voltage range of 3AC 380-480V.
Output frequency range of 0-550 Hz for V/f control.
Internal air cooling system.
Compact FSE blocksize format.
Designed without an integrated filter.
Approved for Control Unit firmware version V4.7 HF8.

Technical Specification Matrix

Parameter	Value
Input Voltage	3AC 380-480 V ±10%
Line Frequency	47-63 Hz
Rated Input Current (LO)	86.00 A
Rated Input Current (HO)	78.00 A
Rated Output Power (LO, 400V IEC)	45.00 kW
Rated Output Power (HO, 400V IEC)	37.00 kW
Rated Output Current (LO)	90.00 A
Rated Output Current (HO)	75.00 A
Max. Output Current	150.00 A
Output Frequency (Vector Control)	0-200 Hz
Output Frequency (V/f Control)	0-550 Hz
Pulse Frequency	4 kHz
Efficiency η	0.98 (98%)
Power Factor λ	0.95
Offset Factor cos φ	0.99
Sound Pressure Level (1m)	71 dB
Power Loss	1.19 kW
Cooling Method	Internal air cooling
Cooling Air Requirement	0.083 m³/s
Installation Altitude	1,000 m
Ambient Temperature (Operation LO)	-20 to 40 °C (-4 to 104 °F)
Ambient Temperature (Operation HO)	-20 to 50 °C (-4 to 122 °F)
Relative Humidity (Max. Operation)	95 % RH, condensation not permitted
Line Side Conductor Cross-Section	25.00 - 70.00 mm² (AWG 4)
Degree of Protection	IP20 / UL open type
Compliance Standards	UL, cUL, CE, C-Tick (RCM), SEMI F47
Physical Weight (kg)	26.4
Dimensions L x W x H (cm)	59.5 x 40 x 30

Industrial Applications

1. Conveyor Systems with Frequent Starts/Stops

This power module is ideal for controlling conveyor belts in manufacturing or logistics, particularly those requiring precise speed adjustments and frequent starts/stops. The high overload capability (up to 200% for 3s) handles the inertia of starting heavy loads, while the built-in braking chopper efficiently dissipates regenerative energy during deceleration, reducing mechanical wear and energy waste.

Problem Solved

Efficiently manages high-inertia loads and frequent speed changes, preventing motor overheating and mechanical stress while improving operational energy efficiency through regenerative braking.

High OverloadBraking ChopperDynamic Control0-550 Hz Output Frequency45 kW

2. Pump and Fan Control in HVAC/Water Treatment

The drive's ability to operate in ambient temperatures from -20 to 50 °C and its IP20 rating make it suitable for installation within industrial control cabinets in HVAC or water/wastewater facilities. Its 45 kW rating and precise speed control (0-550 Hz) allow for optimizing pump and fan speeds to match demand, significantly reducing energy consumption and operational costs.

Problem Solved

Provides energy-efficient and precise flow/air volume control in non-hazardous, enclosed industrial environments, ensuring optimal system performance and extended equipment life.

Variable Speed DriveEnergy EfficiencyIP2045 kW380-480V

3. Material Handling and Hoisting Equipment

For applications like cranes, hoists, and stacker-cranes, the PM240-2's robust 45 kW power output, high overload capacity, and integrated braking chopper are critical. The braking chopper ensures controlled and rapid deceleration when lowering loads, preventing over-voltage on the DC link and enabling safe, precise positioning. The wide voltage input range supports integration into various industrial power grids.

Problem Solved

Enables safe and precise control of lifting and lowering operations by effectively managing regenerative energy and providing ample torque for acceleration and deceleration of heavy loads.

Braking ChopperHigh Overload45 kW380-480VDynamic Braking