Electronic System

6ES7952-1AS00-0AA0 : SIMATIC S7, RAM MEMORY CARD FOR S7-400, LONG VERSION 16 MBYTES

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6ES7971-0BA00 : SIMATIC S7-400, BACK-UP BATTERY 3.6 V/2.3 AH FOR PS 405 4A/10A/20A AND PS 407 4A/10A/20A

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6ES7492-1AL00-0AA0 : SIMATIC S7-400, FRONT CONNECTOR FOR SIGNAL MODULES WITH SCREW-TYPE CONTACT, 48-POLE

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6ES7407-0RA02-0AA0 : SIMATIC S7-400, POWER SUPPLY PS407, 20A, WIDERANGE, 120/230V UC, 5V DC20/A

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