SIMATIC S7-400 BACKUP BATTERY 3.6V 2.3AH

The SIEMENS 6ES7971-0BA00 is a replacement backup battery designed for SIMATIC S7-400 systems, providing 3.6 V and 2.3 Ah capacity. It supplies reliable memory retention and clock backup for PS 405 (4 A/10 A/20 A) and PS 407 (4 A/10 A/20 A) power supply modules. Ideal for maintenance and service routines, this battery helps prevent data loss during power interruptions and keeps system time accurate. Compact and purpose-built for the S7-400 platform, it simplifies parts management and ensures compatibility with the listed PS modules.

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