Product Overview

This is a genuine SIEMENS 3.6V 2.3AH dry cell backup battery (PN: 6ES7971-0AB00), designed for SIMATIC S7-400 PLC systems and compatible with PS405/PS407 power supplies. It provides reliable long-term power backup to retain program data and system parameters during power outages, and is an OEM replacement part approved for TAKRAF GMBH industrial equipment.

Key Features

• 3.6V nominal voltage, 2.3AH high capacity for extended backup runtime
• Original SIEMENS part number 6ES7971-0AB00, 100% compatible with SIMATIC S7-400 series
• Fits PS405 and PS407 power supply modules directly, no modification required
• OEM validated by TAKRAF GMBH for heavy industrial applications
• Long shelf life, maintenance-free dry cell design for reliable performance
• Wide operating temperature range for harsh industrial environments

Specifications

Applications

This backup battery is widely used in industrial automation systems, including PLC control cabinets, power supply modules, mining equipment, processing plant control systems, and other mission-critical industrial applications where data retention during power interruption is essential. It is suitable for both indoor and protected outdoor industrial environments.

Package Contents

• 1 x SIEMENS 6ES7971-0AB00 3.6V 2.3AH Dry Cell Battery