Siemens SINAMICS V20 1.1kW Variable Frequency Drive

Technical Overview

Compact Siemens SINAMICS V20 1.1kW VFD for 3-phase 380-480V motor control. Features IP20, integrated C3 filter, Modbus RTU, and 150% overload for 60s.

Key Features

Three-phase input voltage: 380-480 V AC (-15% / +10%), 47-63 Hz.
Rated output power: 1.1 kW (1.5 hp).
Rated output current: 3.10 A.
Integrated Class A / C3 filter for EMC compliance.
Built-in braking chopper.
Communication via USS and Modbus RTU.
I/O: 4 digital inputs, 1 relay digital output (changeover contact), 1 transistor digital output, 2 analog inputs, 1 analog output.
Degree of protection: IP20 / UL open type.
Compact frame size FSA for wall or side-by-side mounting.
Ambient operating temperature range: -10 to 60 °C.
Overload capability: 110% rated output current for 60 seconds (Low Overload), 150% rated output current for 60 seconds (High Overload).
Output frequency range: 0 to 550 Hz.

Technical Specification Matrix

Parameter	Value
Input Number of Phases	3 AC
Line Voltage	380 ... 480 V -15 % +10 %
Line Frequency	47 ... 63 Hz
Output Number of Phases	3 AC
Rated Output Voltage	400V IEC / 480V NEC
Rated Power (LO/HO)	1.10 kW (1.50 hp)
Rated Current (LO/HO/IN)	3.10 A
Pulse Frequency	4.00 kHz
Output Frequency	0 ... 550 Hz
Low Overload Capability	110 % rated output current for 60 s, cycle time 300 s
High Overload Capability	150 % rated output current for 60 s, cycle time 300 s
Power Factor λ	0.72
Offset Factor cos φ	0.95
Efficiency η	0.98
Integrated Filter Class	Class A / C3
Braking Chopper	Integrated
Communication Protocols	USS, Modbus RTU
Standard Digital Inputs	4
Digital Outputs (Relay Changeover Contact)	1
Digital Outputs (Transistor)	1
Analog Inputs	2 (Can be used as additional digital input)
Analog Outputs	1
Cooling	External fan
Installation Altitude	1,000 m (3,280.84 ft)
Ambient Temperature Operation	-10 ... 60 °C (14 ... 140 °F)
Ambient Temperature Storage	-40 ... 70 °C (-40 ... 158 °F)
Max. Relative Humidity (Operation)	95 %
Max. Motor Cable Length (Shielded)	10 m (32.81 ft)
Max. Motor Cable Length (Unshielded)	50 m (164.04 ft)
Mounting Position	Wall mounting / side-by-side mounting
Degree of Protection	IP20 / UL open type
Frame Size	FSA
Compliance with Standards	CE, cULus, C-Tick (RCM), KC
Physical Weight (kg)	1.05
Dimensions L x W x H (cm)	18 x 20.5 x 14

Industrial Applications

1. Conveyor Belt Systems for Material Handling

The Siemens SINAMICS V20 VFD is well-suited for controlling conveyor belt speeds in material handling applications. Its 1.1 kW rated power and 380-480V input provide ample capability for small to medium conveyor motors. The precise 0-550 Hz output frequency control allows for variable speed adjustments, optimizing material flow, while the 150% overload capability handles initial startup torque or temporary load spikes effectively. The IP20 rating is suitable for installation within protected control cabinets in industrial environments, and Modbus RTU communication ensures seamless integration with existing factory automation systems.

Problem Solved

Provides efficient and flexible speed control for conveyor systems, reduces mechanical stress during startup/shutdown, and optimizes material throughput while integrating easily into industrial networks.

Variable Speed Control1.1 kW Motor3-Phase 380-480V150% OverloadIP20Modbus RTUMaterial Flow Optimization

2. Small Industrial Pumps and Fans

This VFD is an excellent choice for regulating the speed of 1.1 kW industrial pumps and fans, leading to significant energy savings and precise process control. Its ability to vary output frequency from 0 to 550 Hz enables accurate flow or pressure modulation for pumps and airflow management for fans. The integrated braking unit supports applications that require controlled deceleration, preventing water hammer in pumping systems. With an IP20 degree of protection, it can be safely installed in standard electrical enclosures within plant rooms, and the wide -10 to 60 °C operating temperature range ensures reliability in typical industrial conditions.

Problem Solved

Enables energy-efficient operation of pumps and fans, provides precise control over fluid dynamics and airflow, and enhances system longevity through soft start/stop capabilities.

Energy EfficiencyVariable Flow/Pressure1.1 kW MotorIntegrated BrakingIP200-550 Hz OutputProcess Optimization

3. Basic Machine Tools and Mixers

The SINAMICS V20 VFD is ideal for controlling small machine tools like drills, grinders, or industrial mixers with 1.1 kW motors. Its variable frequency output (0-550 Hz) allows for precise speed adjustments, optimizing performance for different materials or mixing consistencies. The 150% overload capability for 60 seconds is crucial for managing transient loads that occur during cutting operations or when mixing high-viscosity materials. Furthermore, the robust design, with an ambient operating temperature range of -10 to 60 °C, ensures reliable and consistent performance in demanding workshop and factory environments.

Problem Solved

Offers precise speed control for improved machining quality and mixing consistency, handles fluctuating loads effectively, and ensures reliable operation in varied industrial settings.

Precision Speed Control1.1 kW Motor0-550 Hz Output150% OverloadIndustrial MixerMachine ToolWide Temperature Range