Redundancy module secures supplies

Siemens has launched a new redundancy module for its Sitop modular 24V power supply units.

Siemens has launched a new redundancy module for its Sitop modular 24V power supply units.

The new device is ideally suited to critical applications and processes that require a reliable power supply.

This new module is a DIN-rail module with a rugged metal housing and it decouples and monitors one or two Sitop modular power supply units.

If one power supply fails, the redundancy module ensures that the other continues to supply the required current to the connected devices without any reaction.

By using several power supply units connected in parallel and linked via redundancy modules, it is possible to implement very secure power supply solutions.

Two integrated diodes decouple the connected power supply units in the event of a failure.

Each redundancy module can decouple two of the 5, 10 or 20A Sitop modular power supply units.

Each 40A power supply unit must have its own redundancy module.

The Sitop modular redundancy module uses a green LED to indicate normal operation of the connected power supply units.

In addition, the operating state can be evaluated by means of a floating relay contact, for example, to trigger alarm messages.

The switching threshold of the LED and relay can be set anywhere in the range from 20 to 25V.

The redundancy module in the housing design of the Sitop modular standard devices is easy to configure, to connect and to integrate into the overall power supply solution.

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