1SVR740750R0400 ABB Control Industrial Automation Components

ABB 1SVR740750R0400 is a control relay designed for voltage monitoring with a single-phase voltage monitoring relay function. It features window voltage monitoring, latching, and operates on both open circuit and closed circuit principles. The relay includes an ON-delay/OFF-delay trip timer and has DPDT (Double Pole Double Throw) - 2C/O contacts. The housing is rated at IP50, and the terminals are rated at IP20. The control voltage is suitable for DIN rail mounting, and it accommodates normally closed (NC) auxiliary contacts with flexible or rigid wires ranging from 0.5-1.5mm2 or 20-16AWG. It supports a supply voltage of AC/DC 24-240 V and is designed for 100,000 operations, with the contacts made from a Silver-Nickel alloy (Ag/Ni) for up to 30,000,000 operations. The net width is indicated by various LED signals for control/supply voltage presence, timer activity, overvoltage/undervoltage, and output relay energization. It offers a tripping curve of 0.1-30 s, utilizes a spring trip unit type, and operates within a temperature range of -20°C to +60°C. The control circuit rated current varies with the application, offering 4 A for AC-12 at 230Vac, 3 A for AC-15 at 230Vac, and suitable ratings for DC-12 and DC-13 at 24Vdc. It features a short circuit current breaking capacity (Icn) and protection settings tailored for diverse operational needs. The measurement function spans a wide range of operating rates from 3-30V to 60-600V.