Table 18. IOM - Binary input/output module contact data (reference standard: IEC 61810-2)
Function or quantity Trip and signal relays Fast signal relays (parallel
reed relay)
Binary outputs 10 2
Max system voltage 250 V AC, DC 250 V DC
Test voltage across open contact, 1 min 1000 V rms 800 V DC
Current carrying capacity
Per relay, continuous
Per relay, 1 s
Per process connector pin, continuous
8 A
10 A
12 A
8 A
10 A
12 A
Making capacity at inductive load with L/R > 10 ms
0.2 s
1.0 s
30 A
10 A
0.4 A
0.4 A
Making capacity at resistive load
0.2 s
1.0 s
30 A
10 A
220–250 V/0.4 A
110–125 V/0.4 A
48–60 V/0.2 A
24–30 V/0.1 A
Breaking capacity for AC, cos φ > 0.4 250 V/8.0 A 250 V/8.0 A
Breaking capacity for DC with L/R < 40 ms 48 V/1 A
110 V/0.4 A
125 V/0.35 A
220 V/0.2 A
250 V/0.15 A
48 V/1 A
110 V/0.4 A
125 V/0.35 A
220 V/0.2 A
250 V/0.15 A
Maximum capacitive load - 10 nF
Maximum 72 outputs may be activated
simultaneously with influencing factors
within nominal range. After 6 ms an
additional 24 outputs may be activated. The
activation time for the 96 outputs must not
exceed 200 ms. 48 outputs can be activated
during 1 s. Continued activation is possible
with respect to current consumption but
after 5 minutes the temperature rise will
adversely affect the hardware life. Maximum
two relays per BOM/IOM/SOM should be
activated continuously due to power
dissipation.
1MRK 506 372-BEN -
Line distance protection REL670 2.2
Product version: 2.2
ABB 57
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