12
4.3.3. general characteristics
of withdrawable circuit-breakers (15 kv)
for PowerCube Pb1 modules 600 mm wide
Circuit-breaker
vmax/w 15
use in switchgear/enclosure
PowerCube
Standards
IEC 62271-100 •
CEI EN62271-100 (file 7642) •
C37.54 - C37.09 - C37.04 - C37.55 •
uL Listed (on request)
Rated voltage
ur [kV] 15
Rated insulation voltage
us [kV] 15
withstand voltage at 50 Hz
ud (1 min) [kV] 36 (at 60 Hz)
Impulse withstand voltage
up [kV] 95
Rated frequency
fr [Hz] 60
Rated normal current (40°C)
Ir [A] 1200
Rated breaking capacity
(rated symmetrical short-circuit current)
Isc [kA]
25 (3 cycles)
31.5 (3 cycles)
Rated-short time withstand current (2s)
Ik [kA]
25
31.5
Making capacity
Ip [kA]
65
82
Operation sequence
[O - 0.3" - CO - 15" - CO] –
[O - 0.3" - CO - 3' - CO] •
Opening time
[ms] 27 ... 32.5
Arc duration
[ms] 10 ... 17.5
Total interruption time
[ms] <50
Closing time
[ms] 45 ... 80
Maximum
overall dimensions
H [mm/in] 665/26.18
w [mm/in] 503/19.80
D [mm/in] 662/26.06
Pole centre I [mm/in] 150/5.91
weight
[kg/lb] 98/215.60
Standardized table of dimensions
1VCD003280
Operating temperature
[°C] -30 ... +40
Tropicalization
IEC: 60068-2-30, 60721-2-1 –
Electromagnetic compatibility
IEC 62271-1 –
Standard fittings for withdrawable circuit-breakers for
PowerCube Pb1 modules 600 mm wide
The basic versions of the withdrawable circuit-breakers
are three-pole and fitted with:
– EL type manual operating mechanism
– Mechanical signaling device for closing springs charged/
discharged
– Mechanical signaling device for circuit-breaker open/closed
– Closing and opening pushbutton
– Operation counter
– Set of ten auxiliary circuit-breaker open/closed contacts
– Lever for manually charging the closing springs
– Isolating contacts
D
H
w
I I
