Generals:
UniGear 550 type metal-Clad switchgear is the most new product in Unigear products. It has all similar structure characters with all UniGear standard cabinets series.

Special Features:
The most rated current is 1250A, fitted up with Vmax/L vacuum breaker.
The width is only 550mm. Smaller than any other kinds of standard switchgear.
Easy maintenance.
In the standard configuration, three single 185mm2 power cables or two single 300 mm2 power cables connected to each phase busbar is allowed.
The cable terminal up to ground is 600mm.
Ring current transformer is the standard configuration, other kinds would be optional.
Voltage transformer is installed in the front of panel, indicate the status of voltage. And the surge arrestor is installed in the cable chamber.
Unigear 550 switchgear has one safe and dependable interlock device to ensure equipment and operator safe.
Unigear 550 type switchgear has passed IEC and GB standard and related test.

Application conditions:
Ambient Temperature: Max. Temp.: +40º C, Min. Temp. -15º C.
Relative humidity: Average relative humidity/day: ≤ 95%;
Average relative humidity/month: ≤ 90%.
Altitude: Altitude is not higher than 1000m.
Vibration degree is not over 8 degree.
The switchgear is suitable for use in a place where no fire, explosive material, serious sewage and chemical corrosion.
When special application conditions occur, please confirm with our company.
Unigear 550 is fabricated according to standards as belows:
International Standards:
IEC 62271-200, IEC 60694, IEC 62271-100, IEC 62271-102.
Chinese Standards:
GB3906, GB/T 11022,  GB1984.
Unigear 550 main technical data:
Rated voltage(kV):  3.6, 7.2, 12.
Max. Operating voltage(kV):  3.6, 7.2, 12.
Rated insulated level:
Rated power frequency withstand voltage (1 Min)(KV): 42.
Rated lightning impulse withstand voltage (Peak)(kV): 95.
Rated frequency(Hz): 50/60.
Rated current of main busbar(A): 630-1250.
Rated current of branch busbar(A): 630-1250.
Rated thermal stability current(3s/kA): 25, 31.5.
Rated dynamical stability current (Peak)(kA):  63, 80
Dimension(WxDxH)(mm): 550x1340x2200.
Quantity  (kg): 700.
Enclosure protective degree  IP4X. IP2X when door of breaker chamber is open.