Siemens: Efficient, reliable power supplies for industrial automation systems

SITOP power supplies: When failure is not an option.

Power supplies are a core essential for the effective, efficient operation of any industrial plant, regardless of your specific needs or industry.

Critical production processes depend on solid, high-quality power products to keep your automation system running smoothly and reliably.

For decades, Siemens has brought production plants to life with a complete, precisely coordinated range of power solutions that guarantee high operational reliability, focused diagnostics, and fast installation.

Backed by an industry-leading 5-year warranty*, Siemens SITOP power supplies have been expertly engineered and designed to meet industry standards and withstand a wide range of temperatures and environmental impacts.

*Only valid in the U.S.; excludes batteries

Spotlight: Siemens power supplies

SITOP PSU6200

All-around power supply with diagnostic options for preventative maintenance and simple integration into automation technology, offering push-in connection for fast installation and a narrow overall width to save space

Diagnostic monitor: LED display for DC o.k., load, and operating hours (starting at 10A)
Diagnostics interface: Provision of important operating parameters (starting at 10A output power)
High overload capacity due to 150% extra power for 5 s/min and constant current behavior
Wide range input AC 85 - 275 V and DC capability in the range of DC 110 - 275 V
Push-in terminals
Active PFC (Power Factor Correction) from 10A device and higher

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SEL1400

Electronic circuit breaker (selectivity module) with limiting electronic characteristics — engineered for reliable overload and short circuit protection

Reliable tripping of defect load circuits
Uninterruptible supply of all other load circuits
LED status display at the device
Diagnostics interface: common signaling contact or single-channel signaling
Manual switch on/off using reset button
4 or 8 output per module
Push-In terminal

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PSE200U

Electronic circuit breaker (selectivity module) with complete 24V monitoring and fast fault diagnostics

Detection of overload or short-circuits
Avoids plant downtimes by maintaining the 24V supply for the remaining loads
Sequential connection of individual channels reduces load of the power supply
Reduction of downtimes by fast and channel-specific fault localization of the defective 24V branch via direct integration in S7 diagnosis (via S7 functional block)
Easy and cost-effective connection to only one digital PLC input per selectivity module

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Levels of power protection

Level of Protection	Products	Description
No Protection	PSU6200	An overload or short circuit in just one circuit can interrupt the power supply, resulting in a complete failure of the 24 V power supply throughout the system.
Insufficient Protection	PSU6200 + Mini Circuit Breakers	Distribution of current via miniature circuit breakers in various load circuits low-cost solution for consumers which are not sensitive to voltage dips In case of short circuit or overload standard switching devices do not supply the current required for immediate tripping consumers such as PLC, PC or HMI devices are not reliably protected
Inadequate Protection	PSU8200 + Mini Circuit Breakers	Speed up tripping of the miniature circuit breakers by high overload capability of the power supply (e.g., power boost up to 3 x rated current) In case of short circuit or overload with limited short-circuit current, caused by high line resistance for example, the tripping current cannot flow properly inadequate protection of sensitive loads
High Protection	PSU6200 + SEL1200	Current partitioning with selectivity module In case of short circuit or overload the affected circuit is protectively electronically tripped Reliable protection of all other consumers Optimal coordination of selectivity modules with standard power supplies Easy integration of selectivity modules in system diagnostics (common signaling contact, single-channel signaling, remote reset)
Optimal Protection	PSU6200 + SEL1400 OR PSE200U	Current partitioning with selectivity module In case of short circuit or overload the affected circuit is protectively electronically tripped Reliable protection of all other consumers Optimal coordination of selectivity modules with standard power supplies Easy integration of selectivity modules in system diagnostics (common signaling contact, single-channel signaling, remote reset)