Switches and Disconnectors

for Grid Protection

Grid protection ensures swift response to abnormal operating conditions like faults, voltage or frequency fluctuations in the interconnection of the main power grid with secondary distribution systems or renewable energy plants.

Microelettrica offers solutions for different poles configuration and current values, to cover a wide range of needs and provide effective faulty sections isolation, increasing power systems reliability and safety.

N 125 1NO

Ue  600 V
In  125 A
p  1NO
UC  DC3

N 125 2NO

Ue  1000 V
In  125 A
p  2NO
UC  DC3

N 125 3NO

Ue  690 V
In  125 A
p  3NO
UC  AC3

N 190 1NO

Ue  600 V
In  190 A
p  1NO
UC  DC3

N 190 2NO

Ue  1000 V
In  190 A
p  2NO
UC  DC3

N 190 3NO

Ue  690 V
In  190 A
p  3NO
UC  AC3

N 350 1NO

Ue  600 V
In  350 A
p  1NO
UC  DC3

N 350 2NO

Ue  1000 V
In  350 A
p  2NO
UC  DC3

N 350 3NO

Ue  690 V
In  350 A
p  3NO
UC  AC3

N 650 1NO

Ue  600 V
In  650 A
p  1NO
UC  DC3

N 650 2NO

Ue  1000 V
In  650 A
p  2NO
UC  DC3

N 650 3NO

Ue  690 V
In  650 A
p  3NO
UC  AC3

N 1000 1NO

Ue  600 V
In  1000 A
p  1NO
UC  DC3

N 1000 2NO

Ue  1000 V
In  1000 A
p  2NO
UC  DC3

N 1000 3NO

Ue  690 V
In  1000 A
p  3NO
UC  AC3

N 1250 1NO

Ue  600 V
In  1250 A
p  1NO
UC  DC3

N 1250 2NO

Ue  1000 V
In  1250 A
p  2NO
UC  DC3

N 1250 3NO

Ue  690 V
In  1250 A
p  3NO
UC  AC3

N 2000 1NO

Ue  600 V
In  2000 A
p  1NO
UC  DC3

N 2000 2NO

Ue  1000 V
In  2000 A
p  2NO
UC  DC3

N 2000 3NO

Ue  690 V
In  2000 A
p  3NO
UC  AC3

N 3000 1NO

Ue  600 V
In  2500 A
p  1NO
UC  DC3

N 3000 2NO

Ue  1000 V
In  2500 A
p  2NO
UC  DC3

N 3000 3NO

Ue  690 V
In  2500 A
p  3NO
UC  AC3
PROTECTIVE FUNCTION PACKAGES
F   Standard Feeder (ANSI 50/51, 51BF, 50N/51N, 68, 86)
FF   Advanced Feeder (ANSI 46, 49, 50/51, 51BF, 50N/51N, 68, 79, 86)
V   Standard Voltage (ANSI 27, 59, 81, 68, 86)
VV   Advanced Voltage (ANSI 27, 27V1, 59, 59N, 59V2, 68, 81, 86)
M   Motor (ANSI 37, 46, 48, 49, 51LR, 64, 66, 68, 86)
Dir   Directional (ANSI 67, 67N)
AF   Additional Functions
Note: 68, 86 not present in N-DIN series
TECHNICAL SPECIFICATIONS
Pc  Power Continuous
R  Resistance Range
IP  Protection Class
TECHNICAL SPECIFICATIONS
LWH  Dimensions
Vn  Voltage Class
TECHNICAL SPECIFICATIONS
D  Diameter
P  Power
Pst  Pressure
FC  Fire Class
TECHNICAL SPECIFICATIONS
Ue  Rated Voltage
Ith  Thermal Current
Isc  Short Circuit Making and Breaking Capacity
TECHNICAL SPECIFICATIONS
Ue  Rated Voltage
In  Rated Current
p  Poles Number
UC  Utilization Category
TECHNICAL SPECIFICATIONS
Vcc  Rated Maximum Interrupting Voltage
Icn  Rated Short-circuit Capacity
Icw  Rated Short-time Withstand Current

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