ABB RHC931 Filter Module

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1. Product Overview

The ABB RHC931 is a high-performance filter module designed for industrial electrical systems and automation equipment. It effectively suppresses power disturbances and harmonics, improving power quality and protecting sensitive devices from electrical noise. The RHC931 module features a compact design, easy installation, and is suitable for low-voltage distribution and control cabinets, providing a stable power environment for ABB servo drives, inverters, and control systems.

2. Technical Specifications

Electrical Specifications

• Model: RHC931

• Rated Voltage (Ue): 380–480 V AC

• Rated Current (Ie): 15 A

• Frequency Range: 50/60 Hz

• Harmonic Suppression Level: ≥ 30 dB

• Leakage Current: ≤ 3.5 mA

• Impedance: Low impedance design, suitable for sensitive loads

• Power Loss: ≤ 15 W

Environmental & Installation

• Operating Temperature: –25°C … +55°C

• Storage Temperature: –40°C … +70°C

• Protection Degree: IP20 (cabinet installation)

• Mounting: DIN rail

• Dimensions (WxHxD): Approx. 70 mm × 110 mm × 90 mm

• Weight: Approx. 0.7 kg

Compatibility & Interface

• Suitable for ABB servo drives, inverters, and control systems

• Standard plug-in interface for easy maintenance

• LED status indicators (Running / Fault)

3. Advantages & Key Features

1. Efficient filtering — Effectively suppresses harmonics and EMI, improving power quality.

2. Protects sensitive equipment — Enhances reliability of servo drives and control systems.

3. Low leakage current — Complies with safety standards for industrial environments.

4. Compact installation — DIN rail design saves cabinet space.

5. Modular design — Quick installation, maintenance, and replacement.

6. Wide compatibility — Suitable for various ABB industrial automation devices.

4. Application Areas

• ABB industrial robot control systems

• Servo drives and motion control systems

• Inverters and motor control systems

• Automation control panels and low-voltage distribution systems

• Industrial automation production lines

• Precision machinery and industrial equipment power supply

5. Precautions

1. Verify input voltage and rated current match module specifications before installation.

2. Install in a dry, well-ventilated environment, avoiding high temperature, dust, and moisture.

3. Follow wiring diagrams and polarity requirements to ensure reliable connections.

4. Avoid prolonged overload operation to maintain filtering effectiveness and module lifespan.

5. Periodically check LED status indicators to ensure normal operation.

6. Disconnect power before installation or maintenance for safety.

The structure and details of the product：

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