REXROTH HMS01.1N-W0070-A-07-NNNN Brake Resistor Unit

Key Features

• Dissipates regenerative braking energy during rapid motor deceleration
• Protects the drive DC bus from excessive voltage
• Compact, cabinet-mounted design
• Maintenance-free resistor assembly
• High peak braking capability for dynamic motion applications
• Compatible with Bosch Rexroth IndraDrive systems
• Reliable continuous-duty operation in industrial environments

Technical Specifications

Main Functions

The HLB01 brake resistor performs several critical functions:

• Absorbs regenerative energy produced during motor braking
• Converts excess electrical energy into heat
• Prevents DC bus overvoltage trips
• Improves braking performance during high-inertia deceleration
• Protects drive electronics during emergency stops
• Supports stable operation of servo and spindle drive systems

Typical Applications

The HLB01.1D-02K0-N03R4-A-007-NNNN is widely used in:

• CNC machining centers
• Industrial robots
• Packaging machinery
• Printing presses
• Metal processing equipment
• Material handling and conveyor systems
• Textile machinery
• High-speed automated production lines
• Heavy-duty servo drive systems

Installation Recommendations

Before installing or replacing the brake resistor unit:

1. Verify that the drive system supports the specified resistor rating.
2. Confirm the DC bus voltage is within the 254–750 VDC operating range.
3. Install the unit vertically with sufficient clearance for heat dissipation.
4. Ensure cabinet ventilation meets Rexroth thermal requirements.
5. Check all DC bus and control wiring before energizing the system.
6. Perform braking function tests after commissioning.

Mostly used in situations where high-precision servo is not required and only variable frequency speed regulation is needed.

Our products are widely used in CNC mechanical metallurgy, petroleum and natural gas, and petrochemical industries,
Chemical industry, paper and printing, textile printing and dyeing, machinery, electronic manufacturing, automobile manufacturing,
Plastic machinery, electricity, water conservancy, water treatment/environmental protection, municipal engineering, boiler heating, energy, power transmission and distribution.
The quoted price is not the actual price. Please contact the shopkeeper before placing the order to confirm the price and delivery time!!!

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