SIEMENS 6SE7038-6EK84-1JC1 – High-Power Inverter Drive Module | SIMOVERT MASTERDRIVES Platform
Engineering Background
The SIEMENS 6SE7038-6EK84-1JC1 is a high-power inverter drive module from the SIMOVERT MASTERDRIVES Vector Control (VC) platform — Siemens’ flagship industrial drive series engineered for demanding continuous-duty applications. The 6SE70xx series has been the backbone of heavy industrial automation across steel, paper, mining, and marine sectors for over two decades, offering unmatched reliability in high-inertia and regenerative load environments.
Product Positioning
Designed for procurement engineers and system integrators sourcing replacement or expansion modules for existing MASTERDRIVES installations, the 6SE7038-6EK84-1JC1 delivers 380kW output power in a compact modular form factor. It integrates seamlessly into SIMOVERT MASTERDRIVES cabinet systems and supports full vector control with encoder feedback for precision speed and torque regulation.
Complete Technical Specifications
| Part Number / SKU | 6SE7038-6EK84-1JC1 |
| Manufacturer | Siemens AG |
| Product Series | SIMOVERT MASTERDRIVES Vector Control (VC) |
| Module Type | Inverter Drive Module (Compact Plus / Cabinet) |
| Output Power | 380 kW (rated) |
| Input Voltage | 3-phase AC, 380–480 V ±10% |
| Output Voltage | 0–480 V AC (variable) |
| Output Current | 605 A (rated continuous) |
| Control Mode | Vector Control (VC) with / without encoder |
| Switching Frequency | 2.5 / 5 kHz (configurable) |
| Protection Class | IP20 (module), IP54 (cabinet option) |
| Cooling Method | Forced air cooling (internal fan) |
| Communication Interface | PROFIBUS-DP, USS, CBx option boards |
| Ambient Temperature | 0°C to +40°C (derated to +55°C) |
| Storage Temperature | -25°C to +70°C |
| Humidity | ≤95% RH, non-condensing |
| Altitude | Up to 1000 m (derated above) |
| Weight | ~14 kg |
| Country of Origin | Germany |
| Compliance | CE, UL, cUL, EN 61800-3 |
| HS Code | 8504.40 |
Proven Application Environments
- Steel & Rolling Mills — High-torque, regenerative braking, precise speed control under variable loads
- Paper & Printing Machines — Tension control and synchronization across multi-drive systems
- Mining Conveyors & Hoists — Continuous heavy-duty operation with overload tolerance
- Marine Propulsion & Thrusters — Harsh environment performance with full vector torque control
- Water Treatment Pumps — Energy-efficient variable speed operation for large centrifugal pumps
- HVAC & Compressors — Smooth start/stop and energy savings in large-scale building systems
- OEM Machine Builders — Drop-in replacement for existing MASTERDRIVES cabinet installations
Engineering Advantages
- Full Vector Control (VC) — Precise torque and speed regulation from 0 Hz, including sensorless and encoder-based modes
- Modular Architecture — Separates rectifier, DC bus, and inverter stages for flexible system design and simplified maintenance
- PROFIBUS-DP Native — Direct integration into Siemens TIA Portal / STEP 7 automation environments without additional gateways
- Regenerative Capability — Supports 4-quadrant operation when paired with Active Front End (AFE) rectifier units
- Robust Thermal Design — Integrated thermal management with derating curves for high-altitude and high-temperature sites
- Long Service Life — Proven 20+ year platform with global spare parts availability and Siemens service network
System Architecture & Signal Flow
The 6SE7038-6EK84-1JC1 operates as the inverter stage within a SIMOVERT MASTERDRIVES cabinet system. The typical signal flow is:
- AC Mains Input → Line Reactor / Input Filter
- Rectifier Unit (6SE70xx-xRxx) → DC Bus (600–750 VDC)
- DC Bus → 6SE7038-6EK84-1JC1 Inverter Module (IGBT switching stage)
- Output → Motor Filter (optional) → AC Motor
- Control Board (CU) → PROFIBUS / Encoder Feedback → PLC / SCADA
The module accepts DC bus input directly, making it suitable for multi-drive common DC bus topologies where energy can be shared between motoring and regenerating drives.
Sourcing & Quality Verification
- ✅ OEM-Traceable Stock — Units sourced from authorized distributors and verified OEM channels
- ✅ Pre-Shipment Inspection — Visual, label, and functional checks performed before dispatch
- ✅ Authentic Siemens Labeling — Factory serial numbers, date codes, and CE markings verified
- ✅ Warranty — 12-month warranty against manufacturing defects
- ✅ Documentation — Datasheet, wiring diagram, and parameter list available on request
Procurement Process
- Submit Inquiry — Contact us with your required quantity and delivery timeline
- Stock Confirmation — We confirm availability and provide a formal quotation within 24 hours
- Order Placement — Purchase order accepted via email or online checkout
- Quality Inspection — Pre-shipment inspection report issued upon request
- Shipping — DHL / FedEx / sea freight options; export documentation (CO, packing list, invoice) included
- After-Sales Support — Technical support available for installation, parameter setup, and commissioning
Technical FAQ
Q: Is the 6SE7038-6EK84-1JC1 a standalone drive or a module?
A: It is an inverter module designed to operate within a SIMOVERT MASTERDRIVES cabinet system. It requires a separate rectifier unit and DC bus connection — it cannot be powered directly from AC mains alone.
Q: What control board (CU) is compatible?
A: The module is compatible with Siemens CUVC (6SE7090-0XX84-0FF5) and CUMC control units. Ensure firmware version compatibility before replacement.
Q: Can it replace a 6SE7038-6EK84-0JC1 (without the -1JC1 suffix)?
A: The -1JC1 suffix denotes a specific option configuration. Cross-reference the full order number and consult the Siemens SIMOVERT MASTERDRIVES catalog (DA65.10) before substitution.
Q: What is the DC bus voltage range?
A: Nominal DC bus voltage is approximately 600–750 VDC for 400V class systems. Refer to the module datasheet for exact operating limits.
Q: Do you provide parameter backup files?
A: Yes, if the unit was previously commissioned, we can provide the parameter file (DriveMonitor / Starter compatible) upon request.
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