Description
Manufacturer: Siemens
Part Number: 6SL3352-1AG41-0FA1
Product Type: SINAMICS S120 Replacement Power Block (Spare Part)
Product Overview
The 6SL3352-1AG41-0FA1 is a spare IGBT power block for Siemens SINAMICS S120 chassis-format motor modules. It serves as the core power switching unit for one phase (U, V or W) of high-power S120 drive systems. Designed as a field replaceable spare component, it enables targeted repair of damaged motor modules instead of full module replacement, reducing maintenance cost and downtime in heavy industrial drive installations.
Technical Specifications
| Parameter | Value |
|---|---|
| DC Link Operating Range | 675 – 1080 V DC |
| Rated Current | 1025 A |
| Product Classification | Spare part, single-phase power block |
| Compatibility | SINAMICS S120 chassis motor module |
| Construction | Painted module, nickel-plated busbars |
| Mounting | Installed inside S120 chassis motor module frame |
| Certification | CE, UL, cULus |
| Country of Origin | Germany |
Key Features
- Single-phase replaceable power block for high-current S120 chassis motor modules.
- High-power IGBT assembly optimized for heavy-duty continuous operation and regenerative load cycles.
- Nickel-plated busbars to improve conductivity and resist oxidation in high-current environments.
- Modular spare concept: only the faulty phase block can be swapped without replacing the complete motor module.
- Built-in thermal sensing for over-temperature protection monitoring.
- Matched electrical characteristics to maintain drive performance after field replacement.
Application Scenarios
- Large variable-speed drives for metal rolling mills
- Mine hoist and conveyor drive systems
- Heavy-duty test benches with high dynamic load
- Oil & gas large compressor and pump drives
- Power plant auxiliary high-power variable speed equipment
Installation & Maintenance Notes
- Isolate all AC and DC power and confirm full discharge of DC link capacitors before opening the drive cabinet.
- Strictly follow Siemens electrostatic discharge (ESD) protection procedures during handling.
- Verify busbar torque values per Siemens service manual during reassembly; loose connections cause overheating and failure.
- Check phase current balance and perform drive power-up test after power block replacement.
- Inspect cooling fins and clean dust buildup at every planned outage.
- Confirm part number matching with the original motor module before ordering spare.
FAQ
Q: Is 6SL3352-1AG41-0FA1 a complete motor module? A: No, it is a single-phase replacement power block spare part, only one phase of the high-power motor module.
Q: What DC voltage range does this power block support? A: 675 V DC up to 1080 V DC, rated current 1025 A.
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