URM
URM - NH1
Rated Breaking Test
Class
Standard(s) IEC 60269-4 IEC 60269-4 VDE 0636-4
Rated Voltage
[U n ]
Capacity
Voltage aR
700V AC - UL 690V AC - IEC
120kA 120kA
760V AC
500V DC /450V DC - IEC
30kA, L/R = 10ms, 550V DC 125A - 400A, 500V DC 450A - 700A
UL File E180276
Time-Current Characteristics
Full size graphs available upon request R.M.S. Prospective Current [A]
Cut-Off Current Characteristics
Correction Curves
1500
1.2
1300
0.2 0.4 0.6 0.8 1.0 1.0 0.8 0.6 0.4 0.2 0
1100
L U ( V )
B K
900 700
500
200 400 600 800
200 400 600 800
B U (V ) AC
B U (V ) AC
0 0.2 0.4 0.6 0.8 1.0
Prospective Short Circuit Current [kA]
(Symmetrical r.m.s.)
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