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- NINT-51C/NINT-51
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- 220 × 135 × 110 mm
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- Xiamen, China
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ABB NINT-51C / NINT-51 Product Overview
Product Identification
Product Introduction
The ABB NINT-51C / NINT-51 is a high-performance industrial monitoring and protection device designed for advanced electrical systems and energy management. It provides precise measurement of voltage, current, and operational parameters while delivering fast response to abnormal conditions such as overloads, short circuits, or system faults. With its robust construction and compact design, it is optimized for integration into industrial panels, DIN rails, or automation control systems. Its digital relay functionality and communication capabilities make it an ideal solution for industrial energy monitoring, smart factory automation, and high-demand electrical distribution applications.
Product Applications
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Industrial motor protection and monitoring
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Electrical distribution and energy management systems
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Smart factory automation and industrial IoT integration
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Renewable energy systems such as solar and wind farms
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Building energy monitoring and control
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Real-time fault detection and system protection in industrial environments
Product Advantages
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High Precision: Provides accurate and reliable measurement of voltage, current, and operational anomalies.
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Compact and Space-Efficient: Suitable for DIN rail or panel mounting without occupying excessive space.
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Robust Construction: Designed to withstand harsh industrial environments and temperature extremes.
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Energy Efficient: Operates with minimal power consumption while maintaining performance.
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Advanced Integration: Compatible with industrial communication protocols such as Modbus RTU and TCP/IP.
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Enhanced Safety: Provides overload, short-circuit, and system anomaly protection.
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Long Operational Life: Requires minimal maintenance and ensures extended reliability.
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Versatile Applications: Suitable for industrial automation, energy monitoring, and electrical distribution networks.
Technical Parameters
| Parameter | Specification |
|---|---|
| Model | NINT-51C / NINT-51 |
| Rated Voltage | 230–480 V AC |
| Rated Current | 50–500 A |
| Frequency | 50/60 Hz |
| Control Type | Digital / Relay |
| Communication Protocol | Modbus RTU / TCP-IP |
| Insulation Class | Class F |
| Ambient Temperature | -25°C to +60°C |
| Protection Degree | IP20 |
| Dimensions (L×W×H) | 220 × 135 × 110 mm |
| Weight | 2.70 kg |
| Mounting Type | DIN Rail / Panel Mount |
| Response Time | ≤10 ms |
| Operational Life | 15+ years |
Recommended Models – Same Series (NINT Series)
| Model | Rated Voltage | Rated Current | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| NINT-46C | 230–480 V AC | 45–470 A | 210 × 130 × 105 | 2.50 | High-current industrial monitoring |
| NINT-47C | 230–480 V AC | 45–480 A | 210 × 135 × 105 | 2.55 | Large-scale energy distribution |
| NINT-48C | 230–480 V AC | 50–490 A | 215 × 135 × 110 | 2.60 | Industrial motor protection and control |
| NINT-49C | 230–480 V AC | 50–500 A | 215 × 135 × 110 | 2.65 | Advanced industrial energy monitoring |
| NINT-50C | 230–480 V AC | 50–500 A | 220 × 135 × 110 | 2.70 | High-performance protection for energy distribution |
Recommended Models – Same Brand (ABB)
| Model | Rated Voltage | Rated Current | Dimensions (mm) | Weight (kg) | Notes |
|---|---|---|---|---|---|
| A40-11 | 230–400 V AC | 10–80 A | 115 × 75 × 60 | 0.80 | Widely used motor protection |
| TMD-200 | 230–480 V AC | 5–150 A | 140 × 85 × 70 | 1.05 | Industrial automation panels |
| NGR-12 | 230–480 V AC | 10–100 A | 120 × 80 × 60 | 0.85 | Multi-functional relay device |
| ECS-50 | 230–460 V AC | 15–120 A | 130 × 85 × 65 | 0.95 | Energy monitoring and control |
| PMM-300 | 230–480 V AC | 20–200 A | 150 × 100 × 75 | 1.20 | High-demand industrial applications |
FAQ – ABB NINT-51C / NINT-51
Q1: What is the operating voltage range of NINT-51C?
A1: 230–480 V AC.
Q2: Can NINT-51C be installed outdoors?
A2: No, it is IP20 rated and designed for indoor or sheltered environments.
Q3: What is the maximum current supported?
A3: 500 A.
Q4: What mounting options are available?
A4: DIN rail or panel mounting.
Q5: Which communication protocols are supported?
A5: Modbus RTU and TCP/IP.
Q6: What is the operating temperature range?
A6: -25°C to +60°C.
Q7: How heavy is the NINT-51C?
A7: 2.70 kg.
Q8: What industrial applications is it suitable for?
A8: Motor protection, energy monitoring, industrial automation, and electrical distribution.
Q9: What is the response time of the device?
A9: ≤10 milliseconds.
Q10: Does NINT-51C require frequent maintenance?
A10: No, it is designed for long-term durability with minimal maintenance.