Data Sheet

Data sheet 6ES7921-3AA20-0AA0

FRONT CONNECTOR (DIGITAL 4X8E/A) S7-300

Front connector module with flat ribbon Cable connection for digital

32 I/O modules of the S7-300, Power supply over Spring terminals

Target system SIMATIC S7-300

Suitability for use Digital I/O modules

Product type designation Fully modular connection

Product designation Front connector module

Operating data

Operating voltage

● at DC / Rated value

24V

● rated value

60V

● at DC / maximum

60V

Current / rated value 1A

Continuous current / at DC / per plug-in contact /

maximum

1A

Total current / maximum 4A

Operating temperature 0...60°C

Ambient temperature

● during operation

0...60°C

● during storage

-40...+70°C

Number of poles 40; of the front connector

6ES7921-3AA20-0AA0 Subject to change without notice

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Data sheet 6ES7921-3AA20-0AA0 FRONT CONNECTOR (DIGITAL 4X8E/A) S7-300 Front connector module with flat ribbon Cable connection for digital 32 I/O modules of the S7-300, Power supply over Spring terminals Target system SIMATIC S7-300 Suitability for use Digital I/O modules Product type designation Fully modular connection Product designation Front connector module Operating data Operating voltage ● at DC / Rated value 24 V ● rated value 60 V ● at DC / maximum 60 V Current / rated value 1A C
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Manufacturer's article number / of device connector / usable replacement for S7-300 40 pole number of the plug contacts / of the electrical connection 4 Type of electrical connection / for connecting cable Plug-in connection Number of poles / at the 1st interface 16; the IDC connector for the connection cable Position / of the terminal at the top Type of electrical connection / for power supply Spring clamp Number of terminals 8; 4 x 1 x L+, 4 x 1 x M Width of screwdriver blade 3.