6SL3420-1TE21-8AA1 SINAMICS S120 Control Unit, Siemens Drive Controller, Motor Control Power Module

6SL3420-1TE21-8AA1

SINAMICS S120 Motor Module

Siemens Booksize Drive Unit

6SL3420-1TE21-8AA1

6SL3420-1TE21-8AA1 is a Siemens Booksize Drive Unit from the SINAMICS S120 Motor Module series, providing high-performance motor control in compact industrial automation systems.

Specification

SEODescription

The **6SL3420-1TE21-8AA1** is a **SINAMICS S120 Motor Module** from Siemens, designed as a **Booksize Drive Unit** for compact and flexible motor control. It features a single motor output with a rated current of 21 A, supporting three-phase AC motors. This module operates within a voltage range of 380–480 V AC and is directly compatible with Siemens' DRIVE-CLiQ interface for seamless integration into automation systems. It supports communication via PROFIBUS or PROFINET, enabling real-time control in industrial networks. The unit is engineered for industrial applications like robotics, material handling, and machine tools, offering high dynamic performance and precision. Its modular Booksize design allows efficient cooling and space-saving installation. Key advantages include robust thermal management and scalability, though it requires precise parameterization and may need additional components for complex setups. Operating temperature ranges from 0°C to 40°C, ensuring reliability in demanding environments.

SEOSpecification

Parameter	Specification
Product Model	6SL3420-1TE21-8AA1
Device Type	SINAMICS S120 Motor Module
Series	Siemens Booksize Drive Unit
Input Voltage	3-phase 380-480 V AC (±10%)
Rated Output Current	8 A
Power Rating	3 kW (400 V), 4 kW (480 V)
Cooling Method	Forced-air cooling
Protection Class	IP20
Dimensions (HxWxD)	190 x 50 x 210 mm
Weight	Approx. 1.5 kg
Operating Temperature	0°C to +40°C
Storage Temperature	-40°C to +70°C

SEOQandA

question:Do you provide technical selection services?
answer:Yes, we offer technical selection support to help you choose the best-fit products for your needs.
question:Can you supply upgraded or alternative models?
answer:We provide upgraded or equivalent alternative models based on availability and compatibility.
question:Why can other suppliers source discontinued models you can't?
answer:Suppliers may access niche stock or use non-standard channels we don't engage with for quality assurance.

SEOQandA_Product

question:What causes overvoltage faults in 6SL3420-1TE21-8AA1?
answer:Excessive regenerative energy. Check braking resistor configuration and adjust deceleration time.
question:Why does 6SL3420-1TE21-8AA1 show overcurrent errors?
answer:Motor short circuit or incorrect parameter settings. Verify motor cables and current limits.
question:How to resolve communication failures with 6SL3420-1TE21-8AA1?
answer:Faulty PROFIBUS/PROFINET connections. Inspect cables, connectors, and node address settings.
question:Why does 6SL3420-1TE21-8AA1 fail to start?
answer:Incorrect parameterization. Restore factory defaults or re-upload validated parameter sets.
question:How to fix overheating in 6SL3420-1TE21-8AA1?
answer:Insufficient cooling or blocked vents. Clean air paths and verify fan operation.