The stated operate time for functions
include the operating time for the binary
inputs and outputs.
GUID-61AA4AEF-D09C-4BA6-9142-B5CA857C0574 v1
Table 25. IRF - Internal Fail relay output
Quantity
Rated value
Max. system voltage
250 V DC
Min. load voltage
24 V DC
Number of outputs
1
Test voltage across open contact, 1 min
1000 V rms
Current carrying capacity:
Continuous
1.0 s
4 A
8 A
Making capacity at capacitive load with the maximum capacitance of
0.2 μF:
0.2 s
1.0 s
20 A
8 A
Making capacity for DC with L/R > 10 ms:
0.2 s
1.0 s
20 A
8 A
Making capacity at resistive load
0.2 s
1.0 s
20 A
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
Breaking capacity for DC with L/R=100 ms
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 inductive load L/R ≤ 40 ms
1000
Max. operations with resistive load
2000
Max. operations with no load
10000
Influencing factors
IP15846-1 v1
M16705-1 v18
Table 26. Temperature and humidity influence
Parameter
Reference value
Nominal range
Influence
Ambient temperature, operate
value
+20±5°C
-25°C to +55°C
0.02%/°C
Relative humidity
Operative range
45-75%
0-95%
10-90%
-
Line differential protection RED670
1MRK 505 379-BEN R
Version 2.2
Hitachi Energy
77
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