1SVR740884R4300 ABB Control Industrial Automation Components

ABB 1SVR740884R4300 is a multifunctional monitoring relay designed for 3-phase applications. It features phase failure detection, phase sequence monitoring, automatic phase sequence correction, and ON-delay/OFF-delay trip timer functionalities. The relay has DPDT (Double Pole Double Throw) contacts, which are configurable as 2 x 1C/O or 1 x 2C/O. The housing is rated IP50, and the terminals are rated IP20 for protection. It supports a control voltage of 400Vac with a power consumption of 4 VA. The relay accommodates flexible and rigid wires ranging from 0.5-1.5mm2 or 20-16AWG. It operates at a frequency of 50/60/400 Hz and has a supply voltage rating for AC circuits of 500 V. The relay is designed for over 100,000 operations, with NC (Normally Closed) auxiliary contacts rated for 500 V. The contacts are made from a Silver-Nickel alloy (Ag/Ni) and are cadmium-free. It can handle a frame current rating of 0.005 A at 400Vac, with a tripping curve of 0.1-30 s and a trip unit type of spring. The relay operates within a temperature range of -25°C to +60°C and has a control circuit rated current of 4 A for AC-12 and 3 A for AC-15 at 230Vac, and 4 A for DC-12 and 2 A for DC-13 at 24Vdc. Its short circuit current breaking capacity (Icn) is rated for both AC and DC circuits, and it features protection settings for enhanced safety. The relay is designed for DIN rail mounting, ensuring easy installation and integration into various industrial systems.