Siemens SINAMICS G120 PM240-2 Power Module 18.5kW

Technical Overview

3-phase 380-480V 18.5kW LO/15kW HO Power Module with integrated braking chopper, IP20, 0-550Hz output, and STO safety function.

Key Features

Input Voltage: 3 AC 380-480 V ±10 %
Input Frequency: 47-63 Hz
Rated Power (LO): 18.50 kW (25.00 hp)
Rated Power (HO): 15.00 kW (20.00 hp)
Rated Current (LO): 38.00 A
Rated Current (HO): 32.00 A
Max. Output Current: 64.00 A
Output Frequency (V/f control): 0-550 Hz
Output Frequency (Vector control): 0-200 Hz
Pulse Frequency: 4 kHz (adjustable 2-16 kHz)
Degree of Protection: IP20 / UL open type
Cooling: Internal air cooling
Ambient Temperature (Operation LO): -20 to 40 °C (-4 to 104 °F)
Ambient Temperature (Operation HO): -20 to 50 °C (-4 to 122 °F)
Safe Torque Off (STO) function, rated SIL 2 / PL d
Compliance: UL, cUL, CE, C-Tick (RCM), SEMI F47

Technical Specification Matrix

Parameter	Value
Input Voltage	3 AC 380-480 V ±10 %
Input Frequency	47-63 Hz
Rated Power (Low Overload)	18.50 kW / 25.00 hp
Rated Power (High Overload)	15.00 kW / 20.00 hp
Rated Current (Low Overload)	38.00 A
Rated Current (High Overload)	32.00 A
Max. Output Current	64.00 A
Output Frequency (V/f control)	0-550 Hz
Output Frequency (Vector control)	0-200 Hz
Pulse Frequency	4 kHz (adjustable 2-16 kHz)
Degree of Protection	IP20 / UL open type
Cooling	Internal air cooling
Ambient Temperature (Operation LO)	-20 to 40 °C (-4 to 104 °F)
Ambient Temperature (Operation HO)	-20 to 50 °C (-4 to 122 °F)
Max. Relative Humidity (Operation)	95 % RH, non-condensing
Installation Altitude	1,000 m (3,280.84 ft)
Safe Torque Off (STO)	SIL 2 / PL d per IEC 62061 and ISO 13849-1
Compliance Standards	UL, cUL, CE, C-Tick (RCM), SEMI F47
Physical Weight (kg)	16.6
Dimensions L x W x H (cm)	49.5 x 35.6 x 30

Industrial Applications

1. Conveyor Belt Systems with Dynamic Braking Needs

This power module is ideal for controlling motors in conveyor belt systems that require precise and rapid deceleration or frequent stop-and-go operations, commonly found in logistics and manufacturing. The integrated braking chopper allows for efficient handling of regenerative energy during braking.

Problem Solved

Provides controlled and fast braking for heavy loads or frequent deceleration cycles, reducing mechanical stress on the conveyor system and improving throughput. The 18.5 kW (LO) power output is suitable for driving medium to large conveyor motors, while the integrated braking chopper dissipates excess energy safely.

Variable Speed ConveyorDynamic BrakingRegenerative EnergyMaterial HandlingMotor ControlIndustrial Automation3-phase 380-480V

2. Pump Control in HVAC and Water Treatment

Suitable for regulating the speed of pumps in heating, ventilation, and air conditioning (HVAC) systems or water treatment facilities, where precise flow and pressure control are critical for process optimization and energy efficiency.

Problem Solved

Enables optimized pump performance through variable frequency control (0-550 Hz), reducing energy consumption by matching pump speed to demand, instead of relying on inefficient throttling. The 15 kW (HO) rating supports continuous operation for industrial pumps, and the IP20 rating ensures suitability for cabinet installation in controlled environments.

Variable Frequency Drive (VFD)Pump ControlFlow RegulationPressure OptimizationEnergy EfficiencyHVACWater Treatment

3. Industrial Fan and Blower Systems

Effective for controlling large industrial fans and blowers in air handling units or exhaust systems within factories and commercial buildings, allowing for adaptable airflow management and energy savings.

Problem Solved

Offers precise control over fan speed and, consequently, airflow, optimizing ventilation based on environmental conditions or production needs. The 18.5 kW (LO) capacity powers substantial fan motors, while the -20 to 50 °C operating temperature range ensures robust performance in typical industrial settings. This leads to reduced energy costs compared to fixed-speed fan operations.

Fan ControlBlower SystemsAir Handling Unit (AHU)Ventilation OptimizationEnergy SavingsAirflow ManagementMotor Speed Control