ABB NINP-61C Input Protection Card

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 1. Product Overview

The ABB NINP-61C Input Protection Card is a critical protection module used in industrial automation systems and control devices. It is designed to protect digital and analog input signals from overvoltage, surge current, and short circuits. The card uses high-performance electronic components for fast response to electrical anomalies, effectively extending the lifespan of control systems and field devices, ensuring stable operation in industrial automation.

2. Main Technical Parameters

Electrical Data

• Model: NINP-61C

• Rated Operating Voltage: 24 V DC (typical, compatible with 12–30 V DC)

• Input Type: Digital/Analog input

• Maximum Input Current: Depends on signal type, typically ≤ 50 mA

• Response Time: Nanosecond-level fast response

• Protection Features: Overvoltage, short-circuit, surge protection

• Interface Type: Standard terminal connections

Mechanical & Installation

• Dimensions: Standard modular PCB design

• Mounting: Control cabinet or internal slot of automation devices

• Weight: approx. 0.2–0.5 kg

• Cooling: Natural convection

Environmental & Operating Conditions

• Operating Temperature: -10°C to +60°C

• Storage Temperature: -25°C to +70°C

• Relative Humidity: 5%–95% (non-condensing)

• Protection Level: Suitable for internal installation in cabinets or devices

Standards & Certifications

• IEC/EN 61131 series standards

• CE, RoHS certified

3. Advantages and Features

• Effective Protection: Prevents damage to digital and analog inputs from overvoltage, short circuits, or surges

• Fast Response: Nanosecond-level response to instantly protect the system from electrical anomalies

• High Reliability: High-quality electronic components ensure long-term stable operation

• Modular Design: Easy to install, maintain, and replace

• Wide Compatibility: Suitable for various ABB controllers, PLCs, and automation devices

• Space-Saving: Compact PCB design for easy integration into devices

4. Typical Applications

• Input protection for ABB PLC and controller systems

• Signal protection for industrial automation production lines

• Protection of digital/analog sensor interfaces

• Input protection for motor drives

• Industrial robot control systems

• Process control and data acquisition systems

5. Application Notes

• Ensure the card’s rated voltage matches the system input signal voltage

• Install in locations with good ventilation and heat dissipation

• Avoid continuous overload of input signals

• Regularly inspect terminals and the card status

• Disconnect power before installation or maintenance to ensure safety

• Avoid direct exposure to corrosive gases or liquids

The structure and details of the product：

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