1SFA664001R1004 ABB TVOC2-2-48-C Arc Monitor

Why Choose the ABB TVOC2-2-48-C Arc Monitor?

The ABB TVOC2-2-48-C, ABB order code 1SFA664001R1004, is an advanced arc flash detection and protection monitor designed for rapid detection of electrical arcs within low- and medium-voltage switchgear. As part of the ABB Arc Guard System TVOC-2 series, it uses optical detection technology to identify the intense light produced by an arc fault and initiate rapid isolation of the affected electrical equipment.

The TVOC-2 arc monitor provides connections for up to 10 optical detectors on the main unit. Its modular architecture enables the protection system to be expanded to up to 30 optical detectors using compatible TVOC-2 extension modules, providing flexible coverage for larger switchboards and multi-compartment installations.

The TVOC2-2-48-C is the 48 V version with communication capability and is supplied with an HMI, Modbus RTU communication module and mounting accessories. This combination makes it particularly suitable for industrial switchgear where rapid arc detection, local system monitoring and integration with supervisory or automation systems are required.

Key Advantages

• High-speed arc-flash detection and protection for electrical switchgear.
• Optical detection enables rapid identification of the intense light produced by an electrical arc.
• 10 optical detector inputs available on the main arc monitor.
• Expandable to up to 30 optical detectors using compatible TVOC-2 extension modules.
• 48 V supply version for compatible industrial control-power systems.
• Includes an HMI for convenient local system monitoring.
• Integrated Modbus RTU communication supports connection to compatible monitoring and automation systems.

Key Features

• ABB Arc Guard System TVOC-2 series.
• TVOC2-2-48-C arc monitor configuration.
• 10 optical detector connections on the main monitoring unit.
• Expandable to 30 optical detectors using compatible extension modules.
• Supports optical detectors with fibre-optic cable lengths of up to 60 m.
• Includes HMI for local monitoring and system interaction.
• Includes Modbus RTU communication module.
• Designed for rapid circuit-breaker tripping following detection of an arc fault.
• Flexible installation within electrical switchgear and control systems.
• Suitable for DIN rail or door-mounted switchgear applications.

Rapid Arc-Fault Protection for Electrical Switchgear

Electrical arc faults can develop extremely quickly and release substantial energy inside switchgear, creating a serious risk to personnel and potentially causing extensive equipment damage and production downtime. The ABB TVOC-2 Arc Guard System uses optical sensors positioned throughout the switchgear to detect the characteristic intense light generated by an electrical arc and initiate rapid fault-clearing action.

The TVOC2-2-48-C combines optical arc detection with expandable detector capacity, an HMI and Modbus RTU communication. This allows the system to protect multiple switchgear compartments while providing local monitoring and communication with compatible supervisory systems, making it a flexible solution for critical industrial electrical distribution applications.

Typical Applications

• Low-voltage switchgear and switchboards.
• Medium-voltage switchgear installations.
• Motor control centres and industrial distribution panels.
• Industrial power distribution systems.
• Process and manufacturing facilities.
• Critical electrical infrastructure requiring rapid arc-fault mitigation.