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Use of Backup Protection:
Installing an upstream device that limits the prospective short-circuit values will enable the user to place a downstream device with a lower breaking capacity. The coordination between the two devices allows excellent breaking capacity at a low cost.
Note:
Downstream Device is protected up to the level shown under upstream device.
 
400/415V
Upstream Breaking Capacity (kA) :
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NB: To pick items please click on a 'Cell' and click on 'Add to Table' button.
                    Downstream Device                                                                                           Upstream Device
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