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Parameter name Unit  High speed circuit breaker type   
UR
26-81

(82)
 UR
36-81
(82)
 UR
40-81 

(82)
 UR
60-81

(82)
UR
80-
81
 UR
26-64
 UR
36-64
 UR
40-64
 UR
60-64
Arc chute - 81 (82)   81   64  
Main circuit current - Direct       
Rated operating current in the cabinet А 2600 3600 4000 6000 8000 2600 3600 4000 6000
Rated voltage of main circuit  V 900 (1800)*   900 3600   
Setting currents limits  1.4-
8.0
2.0-
15.0
2.0-
15.0
6.0-
18.0
8,0-
24,0
 1.4-
8.0
2.0-
15.0
2.0-
15.0
6.0-
18.0
Breaking capacity in noninductive
circuit:
- rated
- peak
 kА 125 (80)*180 (115) 125
180


40
57
Mechanical strength without maintenance, cleaning and greasing (non-emergency trippings) - 8 х 25000
Special inspection - Inspection after 250 overload trippings  
Test voltage 50 Hz, 1 min kV 15(12)*   15  15   
Impulse test voltage at voltage surges 1,2/50 µs kV 20   18  30   
Voltage of control coil, DC  V 24, 36, 48, 72, 96, 110, 220     

* - Values, stated in brackets, correspond to parameters of Secheron high speed circuit breaker with arc chute 82