Siemens: Power Supplies - SITOP Modular

SITOP Modular Base Units

The power supply for all requirements

Compact basic devices for 1, 2 or 3-phase connection and output current from 5 A to 40 A form the basis of the stabilized 24 V power supply. Add-on modules for extra functions are then added depending on the particular requirements. The compact, primary switching controller requires almost no space. The robust metal housing is also well-equipped for use under rugged industrial conditions. The vibration-proof, DIN rail mounting is also made of metal. This makes installation fast, easy and vibration-proof too. The electronic design also features reliability and quality. The wide input range and international certifications permit use on almost every power network around the world. The 1-phase basic 5 A and 10 A units can even be connected to two phases thanks to the ultra-wide range input up to 550 V.

The latest development is the new 3-phase basic unit with 20 A output current. It is only 70 mm wide and one of the narrowest and most compact units of its performance class.

The basic devices already offer functions for nearly every requirement.

Three LEDs give you clear, detailed information on the current operating status. The output voltage can be increased by 20% with an easy-to-access potentiometer. This means that even with very long cables, all 24 Volts arrive at the devices. For handling short circuits, you can choose between switch-off with storage and constant current with automatic restart. Thanks to its integrated power boost, SITOP is able to deliver up to three times the nominal current (e.g., for engine running or for intentionally blown fuses). The new 20-A device offers additional extra power with 50% more rated current for 5 seconds and thus permits problem-free connection of consumers with high making current. If you have high continuous current requirements, use identical-type SITOP devices and switch to "parallel operation."

For flexible protection against a wide variety of risks, the basic SITOP modular devices can be combined with all SITOP add-on modules.

• Signalling module
• Redundancy module
• Buffer module
• DC UPS and battery pack modules
• Diagnosis module SITOP select

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