Sales of Siemens module 6ES5951-7LD21 Siemens communication module
SIMATIC S5, Power supply 951 (renovated), for S5-115U/H without backup battery 120/230 V AC; 5 V DC, 7 A/15 A
The Siemens 6ES5951-7LD21 is a refurbished power supply unit designed for the SIMATIC S5-115U/H series. This power supply operates with an input of 120/230 V AC and delivers a stable 5 V DC output at either 7 A or 15 A. The 6ES5951-7LD21 is engineered for use in industrial environments where reliable and consistent power delivery is essential for automated production processes. It does not include a backup battery, making it suitable for applications where external battery support is not required. The compact and durable construction of the Siemens 6ES5951-7LD21 allows for straightforward integration into existing S5-115U/H systems, supporting efficient maintenance and system upgrades.