ABB NAMU-01C Auxiliary Measurement Module

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1. Product Overview

The ABB NAMU-01C Auxiliary Measurement Module is an auxiliary measurement device for ABB industrial automation systems. It collects, converts, and transmits current, voltage, and other analog signals to controllers or protection relays. With high-precision sampling and fast response, the module is suitable for substations, distribution systems, and industrial automation for expanded measurement and monitoring capabilities.

2. Technical Specifications

• Model: NAMU-01C

• Product Type: Auxiliary Measurement Module

• Function: Collects and converts analog voltage and current signals to the control system

• Input Signal Types:

  • Current: 0–5 A, 0–1 A (depending on configuration)

  • Voltage: 0–100 V AC/DC, 0–240 V AC/DC

• Output Signals: Compatible with ABB control systems and protection relays

• Accuracy: 0.5% FS (typical)

• Response Time: < 10 ms

• Communication Interface: Backplane or digital bus to main controller

• Operating Temperature: –20 ℃ to +60 ℃

• Mounting: Panel or rack installation

• Supply Voltage: 24 V DC

• Degree of Protection: IP20

• Standards: Complies with IEC 60255 and industrial electrical safety standards

3. Advantages and Features

1. High-Precision Measurement
   Provides accurate voltage and current sampling for reliable control and protection.

2. Fast Response
   Millisecond-level response suitable for dynamic monitoring and real-time control.

3. Modular Design
   Easy installation and expansion for adding measurement points in existing systems.

4. Strong Compatibility
   Compatible with ABB protection relays and controllers; supports standard industrial interfaces.

5. Industrial-Grade Reliability
   Can operate stably under high temperature, vibration, and electromagnetic interference.

4. Applications

• Substation current and voltage auxiliary measurement

• Distribution network monitoring and protection

• Industrial automation control systems

• Energy management and monitoring

• OEM equipment and control panels

5. Installation and Usage Notes

1. Verify module model compatibility with the control system before installation.

2. Pay attention to current and voltage polarity and rating to prevent overloading or damage.

3. Use shielded cables and proper grounding to reduce electromagnetic interference.

4. Securely mount the module to avoid mechanical vibration affecting measurement accuracy.

5. Regularly check connections and measurement data to ensure long-term reliable operation.