SIEMENS 6SL3120-1TE21-8AD0 Single Motor Module | Replacement, Equivalent & Selection Guide
The SIEMENS 6SL3120-1TE21-8AD0 is a SINAMICS S120 Single Motor Module designed for high-performance servo and vector drive applications. This booksize format power module delivers precise motor control for demanding industrial automation systems. At Konmask.com, we supply genuine and equivalent units with full traceability for B2B buyers worldwide.
Technical Specifications
| Parameter | Value |
|---|---|
| Manufacturer | SIEMENS |
| Part Number / SKU | 6SL3120-1TE21-8AD0 |
| Series | SINAMICS S120 |
| Module Type | Single Motor Module (Booksize) |
| Output Current (Continuous) | 18 A |
| DC Link Voltage | 600 V DC |
| Rated Power | ~7.5 kW (at 400 V AC) |
| Cooling Method | Forced air cooling (internal fan) |
| Communication Interface | DRIVE-CLiQ |
| Protection Class | IP20 |
| Ambient Temperature | 0 °C to +40 °C (derating above 40 °C) |
| Weight | Approx. 4.5 kg |
| Dimensions (W×H×D) | 50 mm × 380 mm × 270 mm |
| Certifications | CE, UL, cULus |
Compatible Replacement & Equivalent Models
The following models are functionally compatible or serve as direct/near replacements for the 6SL3120-1TE21-8AD0. Always verify electrical ratings and mechanical dimensions before substitution.
| Model | Brand | Output Current | Notes |
|---|---|---|---|
| 6SL3120-1TE23-0AD0 | SIEMENS | 30 A | Higher current rating — upward compatible |
| 6SL3120-1TE21-0AD0 | SIEMENS | 10 A | Lower current — downward variant |
| 6SL3120-2TE21-8AD0 | SIEMENS | 18 A | Double Motor Module variant (2-axis) |
| 6SL3120-1TE21-8AA0 | SIEMENS | 18 A | Earlier hardware revision |
Note: Cross-referencing is provided for selection guidance only. Konmask.com recommends confirming compatibility with your system integrator before replacement.
Why Choose the Original Model
- Exact DRIVE-CLiQ integration — plug-and-play with SINAMICS S120 Line Modules and Control Units (CU320-2, CU310-2)
- Firmware compatibility — factory-matched firmware version ensures stable operation without manual parameter migration
- Certified safety functions — supports STO (Safe Torque Off) and SS1 per IEC 62061 / EN ISO 13849
- Proven reliability — MTBF data and field-proven performance in automotive, packaging, and machine tool sectors
- OEM warranty compliance — required for warranty-covered installations and service contracts
Typical Applications
- CNC machine tool spindle and feed axis drives
- Servo press and stamping machine control
- Packaging line multi-axis synchronization
- Textile and printing machine drives
- Conveyor and material handling automation
- Robotics and gantry systems
System Compatibility
The 6SL3120-1TE21-8AD0 is designed to operate within the SINAMICS S120 booksize drive system. Confirmed compatible components include:
- Line Modules: 6SL3130-6AE21-0AB1, 6SL3130-7TE21-6AA3 (Active Line Module)
- Control Units: CU320-2 DP (6SL3040-1MA01-0AA0), CU320-2 PN (6SL3040-1MA00-0AA0)
- Motor Encoders: SMC20, SMC30 Sensor Module Cabinet
- SIMATIC S7-300/400/1500 via PROFIBUS DP or PROFINET IO
- STARTER / Startdrive commissioning software
Selection Guide
Use the table below to select the correct Single Motor Module for your application:
| Requirement | Recommended Model |
|---|---|
| Motor current ≤ 9 A | 6SL3120-1TE21-0AD0 |
| Motor current ≤ 18 A (this unit) | 6SL3120-1TE21-8AD0 |
| Motor current ≤ 30 A | 6SL3120-1TE23-0AD0 |
| Motor current ≤ 45 A | 6SL3120-1TE24-5AA3 |
| 2-axis control required | 6SL3120-2TE21-8AD0 (Double Motor Module) |
| Cabinet installation (chassis) | 6SL3310-1TE32-1AA3 (Chassis format) |
Quality Assurance & Sourcing
- Source: Authorized distribution channels and certified surplus stock
- Inspection: Each unit undergoes visual, functional, and label verification before shipment
- Traceability: Batch records and serial number documentation available on request
- Packaging: Anti-static ESD packaging with original or equivalent protective foam
- Warranty: 12-month warranty against manufacturing defects (see terms at Konmask.com)
How to Order
- Confirm your required output current and DC link voltage from your existing drive system
- Verify DRIVE-CLiQ firmware version compatibility with your Control Unit
- Add 6SL3120-1TE21-8AD0 to cart or contact us for bulk/project pricing
- Provide your delivery address — we ship globally with DHL, FedEx, and UPS Express
- Receive order confirmation and tracking within 1 business day
For urgent requirements or project quantities, email [email protected] or call +0086 19859288691.
Replacement & Compatibility FAQ
Q: Can I replace 6SL3120-1TE21-8AD0 with a Double Motor Module?
A: Only if your Control Unit supports 2-axis configuration and your cabinet has sufficient space. The Double Motor Module (6SL3120-2TE21-8AD0) controls two motors simultaneously — it is not a direct 1:1 replacement.
Q: Is the 6SL3120-1TE21-8AA0 compatible?
A: Yes, the -8AA0 is an earlier hardware revision with the same electrical ratings. Firmware may differ; update via STARTER/Startdrive after installation.
Q: What is the difference between booksize and chassis format?
A: Booksize modules (like this unit) are designed for compact cabinet mounting with shared DC bus. Chassis format modules are standalone units for higher power ranges and require separate cooling infrastructure.
Q: Do you provide a test report or inspection certificate?
A: Yes. Functional test reports are available upon request for orders of 3+ units. Contact us before placing your order.
Q: Can this module work with third-party motors?
A: Yes, with appropriate encoder interface modules (SMC20/SMC30). Motor data must be entered manually during commissioning via STARTER or Startdrive.
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Contact: [email protected] | +0086 19859288691
