Tutto sui PLC: la CPU
A practical engineering guide to PLC CPU operation, from deterministic scan cycles and I/O image tables to memory, communications, diagnostics, redundancy, processor sizing, and reliable system...
The Siemens 6ES5955-3LC42 is a SIMATIC S5 power supply unit, engineered for demanding industrial automation environments. This professional-grade unit provides a stable 5 V DC output at 18A and is compatible with both 230 V AC and 120 V AC input voltages. It is specifically designed for use with SIMATIC S5 systems, including models such as the S5-135U, S5-155U, and EG 183/185U, ensuring reliable power delivery for continuous operation on the production line.
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| Brand | Siemens |
| Series | SIMATIC S5 |
| Model | 6ES5955-3LC42 |
| Product Type | Power Supply |
| Input Voltage | 120 V AC / 230 V AC |
| Output Voltage | 5 V DC |
| Output Current | 18A |
| Product Phase | Obsolete |
| Predecessor | 6ES5955-3LC41 |
| Package Dimensions (Calculated) | 46.10 x 34.20 x 11.30 cm |
| Shipping Weight | 6.22 kg |
| Commodity Code | 85044095 |
| Export Control Regulations (ECCN) | N |
Global Express Shipping
Returns & Warranty





The Siemens 6ES5955-3LC42 is a SIMATIC S5 power supply unit, engineered for demanding industrial automation environments. This professional-grade unit provides a stable 5 V DC output at 18A and is compatible with both 230 V AC and 120 V AC input voltages. It is specifically designed for use with SIMATIC S5 systems, including models such as the S5-135U, S5-155U, and EG 183/185U, ensuring reliable power delivery for continuous operation on the production line.
| Parameter | Value |
|---|---|
| Manufacturer | Siemens |
| Brand | Siemens |
| Series | SIMATIC S5 |
| Model | 6ES5955-3LC42 |
| Product Type | Power Supply |
| Input Voltage | 120 V AC / 230 V AC |
| Output Voltage | 5 V DC |
| Output Current | 18A |
| Product Phase | Obsolete |
| Predecessor | 6ES5955-3LC41 |
| Package Dimensions (Calculated) | 46.10 x 34.20 x 11.30 cm |
| Shipping Weight | 6.22 kg |
| Commodity Code | 85044095 |
| Export Control Regulations (ECCN) | N |
Global Express Shipping
Returns & Warranty
Orders are processed and delivered Monday-Friday (excluding public holidays).
For full eligibility, restocking fees, and international return details, please view our official Refund & Return Policy .
| Country of origin |
Germany
|