Description
PS 951-7ND31 — Power Supply
Siemens · PS 951-7ND31 · 6ES5951-7ND31
Description
SIMATIC S5 PS 951 power supply module for the S5-115U/H/F central controller, converting 24V DC input to the internal 5V/5.2V/24V DC logic supply voltages required by CPU and I/O modules.
Key specifications
Parameter | Value |
Function | DC/DC power supply module |
Input voltage | 24 V DC |
Output voltage | 5V / 5.2V / 24V DC (per PS 951 family; verify nameplate) |
Output current | 7A/15A (per PS 951 24VDC family; verify nameplate) |
Compatible controller | S5-115U/H/F |
Reference
Field | Value |
Manufacturer (OEM) | Siemens |
Model | PS 951-7ND31 |
Part number | 6ES5951-7ND31 |
Category | Power Supply |
System family | SIMATIC S5-115U |
Stores quantity | 3 |
Data confidence | medium |
Manuals filed (007 - Manuals)
- Manual CP1430 English Vol1.pdf — S5-115U system reference (CP/comms volume)
- 02 - CPU948 Programming Manual.pdf — S5 CPU programming reference (115U/155H family)
Notes
Classified within PS 951 24V DC power supply family (sibling parts 6ES5951-7ND41/-7ND51 documented with 5V/7A-15A output); exact -7ND31 suffix datasheet not independently located, verify nameplate for backup-battery configuration.
Source: Spare Parts List for Sales V7 (Bohemia Market / BM Global stores inventory). Filed in the AI HW Knowledge Base.