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ABB UNS2881B-P.V1
1. Overview
ABB UNS2881B-P.V1 is a professional industrial voltage monitoring sensor dedicated to power system safety and automation control. It provides accurate voltage measurement, real-time condition monitoring, and fault protection for power generation, distribution, and heavy industrial control systems. As a core ABB component, it enhances system stability and reduces unplanned downtime.
2. Technical Specifications
| Item | Value |
|---|---|
| Part Number | ABB UNS2881B-P.V1 |
| Series | UNS Series Power Monitoring Module |
| Application | Voltage monitor for power systems & industrial sensors |
| Supply Voltage | 24 VDC |
| Signal Isolation | Galvanic isolation |
| Operating Temp | -20°C to +70°C |
| Storage Temp | -40°C to +85°C |
| Humidity | 0–95% RH non-condensing |
| Communication | RS-485, Modbus compatible |
| Function | Voltage detection, fault alarm, status output |
| Size | Approx. 120 × 45 × 220 mm |
| Weight | Approx. 0.4 kg |
3. Key Features
- Professional Power System Monitoring: Tailored for voltage sensing in power generation and distribution.
- High Accuracy & Stability: Ensures reliable data even in harsh industrial environments.
- Full Electrical Isolation: Protects the control system and improves noise immunity.
- Multi-Level Fault Protection: Overvoltage, undervoltage, and signal loss detection.
- Seamless System Integration: Supports standard protocols for easy DCS connection.
- Long Service Life: Industrial-grade components and conformal coating.
- Compact & Robust: Space-saving design for cabinet installation.
- Trusted ABB Performance: Proven in power plants and heavy industry worldwide.
4. Structure & Composition
The module uses a professional industrial PCB with optimized layout for voltage sampling and isolation. It includes signal conditioning circuits, MCU processing unit, communication interface, and alarm output drivers. The rugged mechanical design ensures reliable performance under vibration and temperature changes.
5. Application Fields
- Thermal & hydropower plant voltage monitoring
- Excitation system voltage feedback
- Industrial power distribution automation
- DCS & SCADA power sensing
- Oil & gas production power control
- Metallurgy, cement, and chemical industry power management
- Heavy machinery & large motor control systems
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Sales Manager：Jinny
Email: sales5@xrjdcs.com
WhatsApp/Moblie: +86 18250705533
Email: sales5@xrjdcs.com
WhatsApp/Moblie: +86 18250705533
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