ABB TVOC-2-240

The TVOC-2 Arc Guard System is an arc protection relay that mitigates arc faults and helps to protect people and equipment. The arc monitor is the main unit of the Arc Guard System, which detects the light of an arc and, through fast IGBT contacts, sends an electrical signal within 1 ms to a nearby breaker that interrupts the power and extinguishes the arc. The arc monitor has 10 detector inputs and can trip up to three breakers with zone selectivity if needed. Up to 2 extension units can increase the number of light detectors to 30, and the unit includes an HMI that can be placed on the outside of the door. Detectors are available in a wide range of lengths to fit a complete switchgear design. Supply voltage is 100 to 250 V DC or 100 to 240 V AC at 50/60 Hz. Accessories include a current sensing unit, optical cables, cable straps, and more.