68485282 ACS800-704-0640-7+0F253+F250 ABB

Description

Product name  : 68485282 ACS800-704-0640-7+0F253+F250    ABB Central control module

Product details:

The Standard CEI 99-4 reiterates that each circuit equipped with a circuit-breaker must be equipped with overcurrent
protection devices that act on the opening command of the circuit-breaker. Protective devices may be:direct relays mounted on board the circuit-breaker and
powered directly from the primary current (not used in medium voltage)
– indirect relays without auxiliary power
– indirect relays with auxiliary power
The overcurrent relays must be selected taking into account the characteristics of the circuit to be protected and the selective coordination of the protections; if the Distributor
requires a protection with instantaneous tripping, it may be impossible to achieve selective coordination of the protections
as part of the internal MV distribution network (if present) due to instantaneous tripping of the main circuit-breaker. In
this case, however, it is possible to limit disruption resulting from a fault in the internal network by adopting, for instance,
a suitable distribution scheme (e.g. double radial, open ring) and appropriate devices to identify the faulty section or to
implement current selectivity with the LV network.The Standard CEI 0-16 introduced general rules for protection
of the connection between Users and Distributors.The standard also defines the corresponding features and
settings in detail. The protections provided on the connection point between Users and Distributors are not intended to
protect the equipment and systems, but are only used to define the contractual values above which the User must disconnect from the Distributor’s network.
Therefore the installation of a protection device on the delivery point is not a guarantee of adequate protection of the network downstream.

Advantages: Foxboro, OVATION, TRICONEX, Allen-Bradley, ABB, Motorola, Siemens Moore, Ge Fanuc, Woodward, Bently Nevada and other major import brands!

We have the same series of models in stock.  If you don’t find the model you need, please contact us and we will provide you with an official quotation！

Colour：new Warranty: 12 months
Lead Time：3-day working day Country of origin: Sweden
Price: Please contact us Product weight：0.515kg
Shipping Port: Xiamen, China
Payment: Bank of Chicago, Bank of Singapore
Express cooperation: fedex, DHL, UPS and your express account
Service: Professional Sales provides 24 hours /7 days online service

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