SIEMENS 3RW4037-2TB04 – SIRIUS soft starter | JUAL SIEMENS 3RW4037-2TB04 SIRIUS soft starter S2 63 A, 30 kW/400 V, 40 °C 200-480 V AC, 24 V AC/DC spring-type terminals Thermistor motor protection | Automation technology > Industrial controls > Switching devices > Soft starters and solid-state switching devices > SIRIUS 3RW soft starters > Basic performance soft starter > 3RW40 soft starters > 3RW4037-2TB04