7014 Shunt resistor 0.5 Ω 0.5 Ω, ±1%, 20 W Max. working voltage: 550 Volt Connection: solder terminals Data sheet : Overview Application External shunt resistor in connection with the AC/DC transmitter type 2279 or trip amplifier type 2231. Load 12.5 W without heat sink. 25 W with 535 cm2 x 1 mm heat sink.