Table 22. SOM - Static Output module data (reference standard: IEC 61810-1): Electromechanical relay outputs
Function of quantity Trip and signal relays
Max system voltage 250 V AC/DC
Min load voltage 24 V DC
Number of outputs 6
Test voltage across open contact, 1 min 1000 V rms
Current carrying capacity:
Continuous
1.0 s
8 A
10 A
Making capacity at capacitive load with the maximum
capacitance of 0.2 μF:
0.2 s
1.0 s
30 A
10 A
Making capacity for DC with L/R > 10 ms:
0.2 s
1.0 s
30 A
10 A
Making capacity at resistive load
0.2 s
1.0 s
30 A
10 A
Breaking capacity for AC, cos ϕ > 0.4 250 V / 8 A
Breaking capacity for DC with L/R ≤ 40 ms
(According to IEC 61810-1)
48 V / 1 A
110 V / 0.4 A
125 V / 0.35 A
220 V / 0.2 A
250 V / 0.15 A
Max operations with inductive load L/R ≤ 40 ms 1 000
Max operations with resistive load 2 000
Max operations with no load 10 000
Operating time < 6 ms
Line differential protection RED670
1MRK 505 379-BEN N
70 Hitachi Power Grids
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