Solid-State Switching Devices for Resistive Loads Solid-State Contactors 3RF24 solid-state contactors, three-phase 50 160 e in A 45 P M in W 140 35 40 Module power loss 120 30 100 25 80 15 20 60 10 40 5 NSB0_01683 20 0 0 10 20 30 40 50 60 0 0 8 16 32 24 40 48 Type current 40 A (3RF24 40-.AC..) 1) Device current Ambient temperature T a in °C in A e 60 200 180 e in A 50 P M in W 160 160 40 Module power loss 140 30 100 120 80 20 60 10 NSB0_01684 20 40 0 0 0 10 20 30 40 50 60 Device current Ambient temperature T a in °C 0 10 20 40 30 e in A 50 Type current 50 A (3RF24 50-.AC..) 1) 2 3 + , & & - $ % % & $ + , & & - $ ( % / 0 / ( % $ # 1 $ 2 3 # * ) / / - $ % % & $ # 1 $ 2 3 # * ) / / - $ ( % / 0 / ( % $ Note:
When loaded with IIEC, the maximum overtemperature at the heat sink is 50 K. 2 3 Mounting regulations >70 (2,75) >70 (2,75) >20 (0,8) 3RF2410, 3RF2420 3RF2430-.AB.. >20 (0,8) 3RF2410, 3RF2420 3RF2430-.AB.. >20 (0,8) >20 (0,8) >20 (0,8) >50 (2) >50 (2) NSB0_01702 Clearances for stand-alone and side-by-side installation 1) Identical current/temperature curves for stand-alone and side-by-side installation. 41 Siemens · 2009 3RF2430-.AC.. 3RF2440, 3RF2450 3RF2430-.AC.. 3RF2440, 3RF2450