Siemens 6SL3210-1KE21-7AF1 SINAMICS G120C PN 7.5kW VFD label
Siemens 6SL3210-1KE21-7AF1 SINAMICS G120C PN 7.5kW VFD label
Original Siemens 6SL3210-1KE21-7AF1 frequency converter nameplate
7.5kW Siemens G120C PN 6SL3210-1KE21-7AF1 inverter

Siemens 6SL3210-1KE21-7AF1 SINAMICS G120C PN 7.5kW 380V VFD Drive

SIEMENS

The Siemens 6SL3210-1KE21-7AF1 is a compact SINAMICS G120C PN variable frequency drive with 7.5kW rated power, designed for 3-phase 380-480V AC systems. It features an integrated Class A line filter, IP20 protection, and PROFINET communication for seamless industrial integration. With robust overload capacity, it ensures reliable speed control for pumps, fans, and conveyors. The wall-mount design saves cabinet space, while built-in safety features enhance operational safety.

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Product Overview

The Siemens 6SL3210-1KE21-7AF1 is a high-performance, compact variable frequency drive (VFD) from the SINAMICS G120C PN series, engineered to deliver precise, energy-efficient motor control for demanding industrial applications. Built with Siemens’ decades of automation expertise, this 7.5kW (10HP) drive is optimized for 3-phase AC input voltages of 380V to 480V, accommodating voltage fluctuations of +10%/-20% and operating at 47–63Hz, making it suitable for global industrial environments.
 
At its core, the G120C PN combines robust power electronics with intelligent vector control algorithms to optimize motor performance, reduce energy consumption by up to 30% compared to fixed-speed systems, and extend equipment lifespan. The integrated Class A line filter ensures compliance with EMC standards, minimizing electrical interference in sensitive industrial setups. With support for high output frequencies, it offers flexible speed control for asynchronous motors, ideal for applications like pumps, fans, compressors, conveyors, and material handling systems in manufacturing, HVAC, and process industries.
 
Safety is a key priority, as evidenced by the built-in Safe Torque Off (STO) function, which meets international safety standards to prevent unintended motor startup, protecting both personnel and machinery. The drive features comprehensive I/O capabilities, enabling seamless integration with PLCs, sensors, and other automation devices. The PROFINET interface facilitates real-time communication with industrial networks, supporting Industry 4.0 applications such as remote monitoring, predictive maintenance, and process optimization.
 
Designed for space efficiency, the G120C PN boasts a compact IP20-rated enclosure, weighing just 3.2kg, allowing wall-mounted installation in control cabinets. Its rugged construction is tested to withstand harsh industrial conditions, with a storage temperature range of -40°C to +70°C, ensuring reliability in both extreme cold and hot environments. The drive’s firmware (V4.7 SP10 HF3) is pre-configured for quick commissioning, with user-friendly parameter settings that simplify setup and reduce downtime.
 
Siemens’ commitment to quality is reflected in the drive’s compliance with CE, EAC, UL, and KC standards, ensuring it meets global regulatory requirements. Whether used in manufacturing plants, HVAC systems, or process industries, the 6SL3210-1KE21-7AF1 delivers consistent performance, low maintenance costs, and scalability, making it a cost-effective solution for modern industrial automation. Backed by Siemens’ global support network, this VFD offers long-term reliability, making it an ideal choice for upgrading existing systems or building new automated processes.
 
ParameterSpecification
ManufacturerSiemens
Model Number6SL3210-1KE21-7AF1
SeriesSINAMICS G120C PN
Rated Power7.5 kW (10 HP)
Input Voltage3-Phase AC 380–480V (+10%/-20%)
Input Frequency47–63 Hz
Integrated FilterClass A Line Filter
CommunicationPROFINET (PN)
Safety FunctionSafe Torque Off (STO)
Protection RatingIP20
Weight3.2 kg
Firmware VersionV4.7 SP10 HF3
Storage Temperature-40°C to +70°C
CertificationsCE, EAC, UL, KC
OriginMade in China

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