Siemens SITop Uninterruptible Power Supply 22-29 V DC Input, 21.5-28.5 V DC Output, 14 W Power, 6 A Current 6EP1931-2DC21

Siemens 6EP1931-2DC21 SITop Uninterruptible Power Supply is a DIN rail mountable device engineered to provide uninterruptible DC power support in industrial, laboratory, manufacturing, and commercial settings. It accepts input voltages from 22 V DC up to 29 V DC and supplies regulated output voltages ranging from 21.5 V DC to 28.5 V DC with a current capacity of 6 A and a power rating of 14 W. This UPS module ensures critical equipment continues to operate during power outages by providing a backup time of approximately 10 minutes.

The unit's 95% efficiency enables minimal heat generation, supporting natural air convection cooling and sustaining prolonged operation in harsh temperature ranges from -25°C to +60°C. Its compact form factor of 125 mm length, 125 mm depth, and 50 mm width allows easy integration into existing DIN rail assemblies without occupying excessive space.

Multiple LED indicators facilitate quick status checks, and in-built reverse polarity protection safeguards the device against wiring errors. Strict compliance with standards such as EN55022, EN 61000-6-2, EN60529, Schutzklasse III, EN60950, UL 508, and CSA C22.2 ensures reliable and safe operation aligned with industrial quality benchmarks.

This SITop UPS is ideal in environments requiring stable power continuity for automation systems, control panels, industrial electronics, and other sensitive equipment. Its robust design supports long-term, maintenance-free use, contributing to operational efficiency and reduced downtime.

Supports input voltages of 22 to 29 V DC for versatile installation. Provides output voltages between 21.5 and 28.5 V DC to maintain system stability. Delivers continuous current of 6 amperes and power rating of 14 watts.

Designed for easy DIN rail mounting compatible with standard 35 mm rails. Features a backup time of 10 minutes to bridge power interruptions safely. Built with LED indicators for simple operational status monitoring. Operates efficiently with 95% energy efficiency, minimizing heat loss.

Robust build complies with multiple international safety and quality standards. Rated for operation in harsh environments, with temperature tolerance from -25°C to +60°C. Compact dimensions of 125 mm length, 125 mm depth, and 50 mm width for convenient installation.

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