Air-insulated medium-voltage switchgear NXAir S 550+

NXAirS 550+ is a compact 12kV medium-voltage air-insulated switchgear with max 550mm in width per panel.

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Product information

NXAirS 550+

NXAirS 550+ is a compact 12kV medium-voltage air-insulated switchgear with max 550mm in width per panel. Up to 1250A feeder current and 2500A busbar current. Maximum Short-Circuit current up to 31.5kA - 4s. Its width is optimized to 550mm and Internal Arc Classified like IAC A FLR 31.5kA -1s.
The compact design reduce the demand of installation space which leads to lower construction investment expenses. NXAirS 550+ can be combined with other NXAirS Typical this enables additional functionalities and a high flexibility.

Technical Data

Ratings
 
 
 
Rated Voltage
kV
up to
12
Rated frequency
Hz
 
50
Rated short-duration power-frequency withstand voltage, (50Hz)
kV
up to
42
Rated lightning impulse withstand voltage
kV
up to
75
Rated short-time withstand current, 3s
kA
up to
31.5
Rated peak withstand current
kA
up to
80
Rated short-circuit making current
kA
up to
80
Rated normal current of busbar
A
up to
1250 / 2500
Rated normal current of feeders
A
up to
630 / 1250
Internal arc classification
 
- Wall standing arrangement

- Free-standing arrangement
A FLR up to 31.5 kA, 1s

A FLR up to 31.5 kA, 1s

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