Technical Specifications Breakdown
Key parameters for the EMB9352-C are listed below for quick reference:
| Feature | Specification |
|---|---|
| Manufacturer | Lenze |
| Product Type | Inverter Braking Module |
| Product Line | Series 9300 |
| Part Number | EMB9352-C |
| Power Supply Voltage | 270 to 775 Volts DC |
| Peak Braking Power | 12 kilowatt at 375 Volts DC, 23 kilowatt at 725 Volts DC, and 25 kilowatt at 765 Volts DC |
| Peak Current | 32 Amperes |
| Ambient Operating Temperature | 0 to 40°C with no power reduction and -40 to 50°C with power reduction |
| Switching Threshold | 375 Volts DC, 725 Volts DC, and 726 Volts DC |
| Storage Temperature | -25 to 70°C |
| Braking Resistance | 47 ohms (minimum) at 375, 725, and 726 Volts DC |
| Mounting Method | DIN rail mount |
| Maximum Energy | 50 Watts |
| Continuous Braking Power | 5 kilowatt at 375 Volts DC, 10 kilowatt at 725 Volts DC, and 11 kilowatt at 765 Volts DC |
| Display Type | LED display |
| Humidity Tolerance | Approximately 85% relative humidity and in a non-condensing environment |
| Vibration Resistance | Up to 0.7G |
| Protection Class | IP20 |
Installation and Setup: What You Need to Know
Mounting the EMB9352-C is straightforward thanks to its DIN rail design. Before installation, verify that the DC bus voltage is within the 270 to 775 VDC range. Ensure the braking resistor is at least 47 ohms—using a lower value could overload the module. The module's IP20 enclosure protects against dust and accidental touch, but you should still install it in a clean, dry cabinet. For optimal airflow, maintain clearance around the unit. When wiring, follow the manufacturer's guidelines and use appropriately rated cables.
Maintenance and Reliability: Minimizing Lifecycle Costs
The EMB9352-C is designed for long service life, but regular inspections can prevent costly failures. Check the LED display periodically for fault indications. Keep the enclosure free of dust and debris, as buildup can reduce cooling efficiency. The module can operate in temperatures up to 40°C without derating; if your ambient temperature exceeds this, the module will automatically reduce power. Ensure the environment stays within the specified humidity range (approximately 85% RH, non-condensing) to avoid moisture-related issues. Vibration resistance up to 0.7G means the module can handle typical industrial vibration, but avoid mounting it near high-vibration equipment without isolation.
Why the EMB9352-C is a Smart Investment for Your Drive System
Without a braking module, that energy can cause overvoltage faults or even damage the drive. The Lenze EMB9352-C solves this by safely dissipating excess energy as heat, protecting your equipment and reducing downtime. For plant managers and maintenance engineers, this means fewer unexpected stops and lower repair costs.
The Cost-Saving Advantage of Flexible Braking Power
The EMB9352-C offers three distinct peak braking power levels—12 kW, 23 kW, and 25 kW—depending on the DC bus voltage. This flexibility means you can match the braking capability to your actual load without oversizing, saving on initial capital and energy costs. For example, a conveyor system running at 375 VDC only needs the 12 kW setting, while a high-speed centrifuge at 765 VDC can use the full 25 kW. This adaptability reduces the need for multiple spare modules, simplifying inventory and lowering carrying costs.
Where the EMB9352-C Delivers Value
Centrifuges and Separators – These machines have high inertia and require rapid deceleration. The module's peak current of 32 Amperes ensures enough capacity to handle the regenerative energy, preventing nuisance trips and protecting the drive.
Hoists and Cranes – Lowering heavy loads generates significant regenerative energy. The continuous braking power ratings (up to 11 kW) allow sustained braking during long descents, improving safety and efficiency.
Winders and Unwinders – In web handling, tension control is critical. The module's precise switching thresholds (375, 725, and 726 VDC) enable consistent braking torque, reducing material waste and improving product quality.
Compatibility and Integration
As part of the Lenze Series 9300, the EMB9352-C is designed to work with Lenze drives of the same series. It connects to the DC bus of the drive and is controlled by the drive's braking control logic. The module's switching thresholds are pre-configured to match common DC bus voltages, so integration is plug-and-play in most cases. Always confirm that your drive's DC bus voltage matches the module's range (270-775 VDC) before installation.
Selection Guide and Purchasing Advice
When selecting a braking module, consider your application's peak and continuous braking requirements. The EMB9352-C offers a wide voltage range and multiple power levels, making it a versatile choice. At AutoDCSTech, we stock genuine Lenze parts and provide expert support to help you choose the right component. Contact our team to check availability and lead times. We also offer competitive pricing and fast shipping to minimize your downtime.
Troubleshooting Common Issues
If the module does not brake as expected, first check the DC bus voltage. If it is below the switching threshold, the module will not activate. Verify that the braking resistor is correctly connected and has the minimum resistance of 47 ohms. A faulty resistor can cause the module to overheat or trip. If the LED display shows an error, consult the Lenze documentation for specific fault codes. For persistent issues, contact AutoDCSTech's technical support for guidance.
Availability & Condition at AutoDCSTech
| Part Number | EMB9352-C |
|---|---|
| Availability | In Stock |
| Condition | New |
| Warranty | One Year |
| Origin | Germany |
