Table 23. 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
Breaking capacity for DC with L/R=100ms
110 V / 0.3 A
Breaking capacity for DC with resistive load
48 V / 2 A
110 V / 0.5 A
125 V / 0.45 A
220 V / 0.35 A
250 V / 0.3 A
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 R
Version 2.2
Hitachi Energy
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