Description

ABB TVOC-2-240 Arc Fault Detection Monitoring Module

Technical Specifications

• Product Model: TVOC-2-240
• Brand: ABB
• Warranty: One Year
• Input Voltage: 24 VDC ±10%
• Operating Temperature: 0°C to +50°C
• Storage Temperature: -40°C to +70°C
• Response Time: ＜5 ms
• Protection Class: IP65
• Accuracy Class: 0.5
• Output Frequency: 50/60 Hz
• Rated Current Range: 0–20 A
• Communication Interface: RS485
• Supported Protocols: Modbus RTU
• Overload Capacity: 200% rated current for 30 seconds
• Dimensions: 280mm × 165mm × 105mm

Product Overview

The TVOC-2-240 is a dedicated arc fault protection and monitoring module developed for low-voltage power distribution and industrial electrical control systems. It adopts dual-mode detection logic combining optical arc flash sensing and current waveform analysis to identify dangerous arc faults inside switch cabinets, busbars and terminal wiring, effectively resolving hidden risks such as undetected internal short circuits, loose contact arcing and delayed protective tripping which often trigger electrical fires or equipment breakdowns. The module outputs real-time fault alarm signals and diagnostic data to PLC, DCS or SCADA platforms for centralized system management, shortening troubleshooting cycles for electrical maintenance teams. Facility electrical engineers, automation system integrators and plant safety supervisors in manufacturing workshops, data center power rooms, chemical plants and commercial building power distribution rooms gain the most practical value from this device. It carries built-in electromagnetic interference suppression and self-diagnosis routines to filter out false triggers caused by switching surges, stabilises long-term continuous operation, and standardises compliance with electrical safety codes for industrial power distribution loops.

Core Functional Features

1. Dual-channel synchronous detection of arc light and abnormal current to improve judgment precision and reduce false alarms
2. Ultra-fast tripping response within 5 milliseconds to isolate faulty circuits and minimise arc damage to busbars and switchgear
3. Local LCD screen and LED status indicators for on-site visual checking of power status, fault records and working mode
4. RS485 Modbus RTU communication for remote data uploading, parameter configuration and historical fault log retrieval
5. Wall-mounted cabinet installation structure with sealed IP65 housing, adaptable to dusty and humid on-site industrial environments
6. Automatic periodic self-test function to verify sensor and circuit integrity without interrupting normal power supply operation