1SVR730840R0300 ABB Control Industrial Automation Components

ABB 1SVR730840R0300 is a current monitoring relay designed for single-phase under-/over-current monitoring. It features SPDT (Single Pole Double Throw) contacts with a housing protection rating of IP50 and terminal protection rating of IP20. The control voltage is compatible with DIN rail mounting, and it supports a variety of wire connections including flexible and rigid wires with sizes ranging from 0.5-4mm2 and AWG sizes from 18-14 for flexible wires and 20-12 for rigid wires. The supply voltage spans AC/DC 24-240 V, and it is designed for a high number of operations, with 100,000 operations for mechanical endurance and 30,000,000 for electrical endurance. The relay uses a silver-nickel alloy (Ag/Ni) for contacts, ensuring durability. It includes three LED indicators: green for control/supply voltage presence, red for overcurrent/undercurrent detection, and yellow for output relay energization. The trip unit type is screw-clamp for secure connections. It operates within a temperature range of -20°C to +60°C and can handle control circuit rated currents of 4 A for AC-12, 3 A for AC-15 at 230Vac, and 4 A for DC-12, 2 A for DC-13 at 24Vdc. The relay offers adjustable operating rates for current measurement functions, ranging from 0.3-1.5A, 1-5A, to 3-15A, accommodating various application needs.