1SVR740830R0300 ABB Control Industrial Automation Components

ABB 1SVR740830R0300 is a voltage monitoring relay designed for single-phase under-/over-voltage monitoring with SPDT (Single Pole Double Throw) - 1C/O contacts. It features a housing protection rating of IP50 and terminal protection rating of IP20. The control relay has a communication protocol width of 85.6 mm, a net height of 4 kV, a rated impulse voltage (Uimp) of 22.5 mm, and a rated insulation voltage (Ui) of 600 V with a net width of 103.7 mm. It supports a control voltage (AC) for DIN rail mounting and has Normally Closed (NC) auxiliary contacts compatible with both flexible and rigid wires of sizes 2 x 0.5-1.5mm2 and 2 x 20-16AWG. The relay operates within a supply voltage range of 24-240 V (AC/DC) and is designed for 100,000 operations, with its contacts made from a Silver-Nickel alloy (Ag / Ni) for enhanced durability, supporting up to 30,000,000 operations. It features a green LED for control/supply voltage presence, a red LED for overvoltage/undervoltage indication, and a yellow LED to indicate when the output relay is energized. The trip unit type is a spring, and it operates within a temperature range of -20°C to +60°C. The control circuit rated current is 4 A for AC-12 at 230Vac, 3 A for AC-15 at 230Vac, and for DC applications, 4 A for DC-12 and 2 A for DC-13 at 24Vdc. The relay offers protection settings and an operating rate for voltage measurement functions across ranges of 3-30V, 6-60V, 30-300V, and 60-600V.