Lenze Module | Inverter Braking Resistor Unit EMB9351-E

Lenze Emb9351-E Braking Module for Inverters

The Lenze Emb9351-E safely dissipates excess motor energy. It protects your drive system during fast stops and overhauling loads.

Key Benefits

• Safe Braking: Manages high braking power up to 12 kW peak.
• Wide Voltage Range: Works from 270V to 775V DC for system flexibility.
• Integrated Resistor: Includes a 47 Ω internal brake resistor.
• Compact Design: Lightweight at only 2.6 kg for easy installation.
• High Energy Handling: Manages up to 50 kWs of braking energy.

Technical Specifications

Brand & Model: Lenze Emb9351-E
Supply Voltage (VN): 270 ... 775 V DC
Threshold Voltage (Vz): 375 V DC, 725 V DC, 765 V DC
Peak Current (60s): 16 A DC
Peak Braking Power (PBmax):
- At 375V: 3 kW
- At 725V: 11 kW
- At 765V: 12 kW
Continuous Braking Power (PBd): 100 W (all voltages)
- Brake Resistance (RBmin): 47 Ω (internal)
Max. Braking Energy (Wb): 50 kWs (with 20 min break)
Power Derating:
- Above 40°C: 2% per K
- Above 1000m altitude: 5% per 1000m
Weight: 2.6 kg

Installation & Use

Connect this module to the DC bus of your Lenze inverter. Ensure proper mounting for heat dissipation. Ideal for applications with frequent deceleration or descending loads like cranes and conveyors.

Shipping & Warranty

Shipped via FedEx, UPS, or DHL. Includes the braking module and installation guide. This product is covered by a 12-month warranty.

Frequently Asked Questions

When is a braking module needed?
It is essential when your motor acts as a generator, such as during rapid stops or when a load drives the motor downhill.

What does the "threshold voltage" mean?
The module starts dissipating energy when the DC bus voltage exceeds the set threshold (e.g., 375V, 725V, 765V).

Can it handle continuous braking?
No. Its continuous rating is 100W. It is designed for intermittent, high-power braking cycles with adequate cooling periods.

Is an external resistor required?
No, it has a built-in 47 Ω resistor. This simplifies wiring for standard applications.

How do altitude and high temperature affect it?
Both reduce its cooling ability. Power capability decreases by 2% for each degree above 40°C and 5% for every 1000m above sea level.