Siemens 6EP1935-6MD11 uninterruptible power supply (UPS)

The Siemens 6EP1935-6MD11 Uninterruptible Power Supply (UPS) is a compact, industrial-grade backup power solution designed to maintain continuous power to critical equipment. Its compact footprint and efficient energy conversion make it suitable for control cabinets, automation systems and industrial installations where space and reliability are important. The unit integrates battery management and protection features to deliver stable output during mains disturbances and short interruptions.

Advantages

The UPS delivers stable DC output with high conversion efficiency and integrated battery management to extend battery life and ensure predictable runtime. A wide input voltage range and robust protection circuitry protect connected equipment from overloads, short circuits and voltage fluctuations. The compact design simplifies installation in confined spaces and reduces the need for additional cooling, while durable components ensure continuous operation in demanding industrial environments.

Suitable for

Key specifications

How to use

Install the UPS in a suitably sized control cabinet or enclosure according to local electrical codes and Siemens installation guidelines. Connect the mains supply and the battery according to the manufacturer's wiring diagrams, then connect the load (control system, PLC, communication devices) to the regulated output terminals. Verify input and output voltages and confirm battery charging operation before placing the protected equipment into normal service. Ensure adequate ventilation around the unit and use recommended fusing and circuit protection when integrating into existing panels.

Recommendations

For reliable operation, perform regular visual inspections and battery checks, replace batteries at recommended intervals, and keep firmware or configuration (if applicable) up to date. Match the UPS runtime requirements to the battery size and expected load to ensure continuity of critical functions. Where possible, document the UPS wiring and maintenance schedule to support rapid troubleshooting and consistent long-term performance.