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Identification of the circuit breakers
1
Ue: Operating voltage
2
Icu: Rated ultimate short-circuit breaking capacity at the rated operating voltage Ue
3
Ics: Rated service short-circuit breaking capacity
4
Icw 1 s: Rated short-time withstand current for 1 second
5
Icw 3s: Rated short-time withstand current for 3 seconds
6
Ui: Rated insulation voltage
7
Uimp: Rated impulse withstand voltage
8
Category
9
Frequency
A
Manufacturing date code
Z
Standards
E
QR code to access the documentation online
R
Symbol of a circuit breaker suitable for isolation or symbol of a switch-disconnector
T
Maximum rating of the circuit breaker
Y
Icm: Rated short-circuit making capacity
U
Not suitable for protection in an IT earthing system
Circuit breaker technical description label
Switch-disconnector technical description
label
Z
E
E
U
Z
A
A
T
T
R
R
1
1
2
4
3
Y
4
5
6
6
7
7
8
8
9
9