Siemens SENTRON 3WA1 - Page 174

Description
2.8 Communication and system connection
3WA1 air circuit breaker
172 Equipment Manual, 02/2023, 92310000002-06
Technical specifications
Design of the power supply
DC power supply unit
DC power supply unit
IEC 61558 SELV/PELV
Rated supply voltage Us
24 V DC
Operating range
U
s
± 20%
Power consumption
1.3 W
Maximum current consumption
0.05 A
Starting current / maximum (for 5 ms)
0.35 A
Overvoltage category
CAT I
Integrated short-circuit protection
✓
Protected against polarity reversal
✓