ABB PLUTO B46 V2 2TLA020070R1700

roduct ID:3BDH000013R1

ABB Type Designation:SA 811F

Catalog Description:SA 811F Power Supply 115/230 VAC

Long Description:SA 811F, Power Supply 115/230 VAC

The system is powered by 24V DC. The system has internal overcurrent protection but should

be protected by an external fuse. (See technical data).

In installations with several Pluto units connected together via bus, they must be installed in the

same earthing system. Proper potential equalization is necessary.

The Pluto is designed for applications which fulfil IEC-EN 60204-1 and with special attention to:

- “Transformers shall be used for supplying the control circuits”.

- “Where several transformers are used, it is recommended that the windings of those

transformers be connected in such a manner that the secondary voltages are in phase”.

(see EN 60204-1, 9.1.1)

These requirements are relevant for connection of the relay outputs.

- For electrical safety reasons and in order to be able to detect safety critical earth faults in

single channel circuits, the 0V terminal must be connected to protective bonding circuit.

(see EN 60 204-1, 9.4.3.1 Method a).

The system is designed and tested for installation category II according to IEC 61010-1, (all

connected circuits are supplied via control voltage transformers).

Cables and connected devices such as sensors, pushbuttons, selector switches shall be

isolated for 250V.

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