Solid-State Switching Devices for Resistive Loads Solid-State Contactors 3RF24 solid-state contactors, three-phase ■ Characteristic curves Derating curves, two-phase controlled 14 24 26 e in A 12 P M in W 22 10 Module power loss 20 18 8 16 14 6 12 4 10 8 2 NSB0_01675 4 6 0 10 20 30 40 50 60 0 2 0 Device current Ambient temperature T a in °C 0 2 4 6 8 10 12 e in A Type current 10.5 A (3RF24 10-.AB..) 25 50 45 e in A 20 Module power loss P M in W 40 15 35 30 25 10 20 5 15 NSB0_01676 10 5 0 0 10 20 30 40 50 60 0 0 4 8 12 20 24 16 Type current 20 A (3RF24 20-.AB..) Device current Ambient temperature T a in °C e in A 40 78 e in A 35 P M in W 66 72 30 Module power loss 60 54 25 42 48 20 36 15 30 24 10 NSB0_01677 12 18 0 5 6 0 0 10 20 30 40 50 60 Device current Ambient temperature T a in °C 0 6 18 12 e in A 24 30 36 Type current 30 A (3RF24 30-.AB..) 38 Siemens · 2009