Binary (Digital) Outputs - Siemens Argus 7SR21 Technical Manual

1.2.4

Binary (Digital) Outputs

Contact rating to IEC 60255-0-2
Attribute
Carry continuously
Make and carry
(L/R £ 40 ms and V £ 300 V)
Break
( £ 5 A and £ 300 V)
Contact Operate / Release Time
Minimum number of operations
Minimum recommended load
Unrestricted © 2013 Siemens Protection Devices Limited
Value
5 A AC or DC
for 0.5 s 20 A AC or DC
for 0.2 s 30 A AC or DC
AC resistive 1250 VA
250 VA at p.f. £ 0.4
AC inductive
DC resistive 75 W
30 W at L/R £ 40ms
DC inductive
50 W at L/R £ 10 ms
7 ms / 3 ms
1000 at maximum load
0.5 W at minimum of 10 mA or 5 V
7SR21 & 7SR22 Performance Specification
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