Description

6EW1890-2AC – Siemens SINUMERIK / S5 Series Industrial Power Module
6EW1890-2AC is a 24V/10A industrial switching power supply for the 6EW series of Siemens, compatible with SINUMERIK CNC system & S5 PLC. It is an old classic model that has been discontinued and is mostly used for upgrading old machines and control cabinets.

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Core product information
Brand: Siemens
Model: 6EW1890-2AC
Series: 6EW / SINUMERIK / S5
Status: Discontinued (out of production), mostly in refurbished / inventory in the market
Input: 85–264 VAC (wide voltage, universal worldwide), 50/60 Hz
Output: 24 VDC / 10 A (rated 240W)
Efficiency: Up to 94%
Protection: Overvoltage, Overcurrent, Short Circuit, Overheat
Operating Temperature: -25°C ~ +70°C
Dimensions (Width × Height × Depth): 148 × 90 × 58 mm
Weight: Approximately 0.5 kg
Certifications: CE, UL, CSA
Installation: Standard 35 mm DIN rail

Main features
Wide-range AC input: 85–264 VAC adaptive, universal for global power grids, no need to adjust jumpers.
High-power regulated output: 24V/10A, low ripple, provides stable power supply for CNC, PLC, I/O, and sensors.
Full-protected industrial grade: Overvoltage / Overcurrent / Short circuit / Overheat automatic protection, shock-resistant, wide temperature range, suitable for strong interference environments in machine tools.
High energy efficiency and low heat generation: Efficiency up to 94%, low temperature rise during long-term operation, prolongs lifespan.
Easy replacement with rail installation: Standard DIN rail, directly replace the old 6EW series or the same specification SITOP power supply.

Typical application
SINUMERIK 800/810/820/840 CNC system (for lathes, milling machines, machining centers)
Siemens S5 series PLC control cabinet
Renovation of old machines, replacement of spare parts
Industrial automation equipment – 24V centralized power supply