Siemens SENTRON 3WL Reference Manual page 52

3WL Air Circuit Breakers
3WL Non-Automatic Air Circuit Breakers up to 4000 A (DC)
General data
■
Technical specifications
Size
Type
Rated current I at 40 °C
n
Main conductor
Rated operational voltage U
e
(1000 V version, see Catalog LV 1, order code "A05")
Rated insulation voltage U
i
Rated impulse withstand voltage U
• Main current paths
• Auxiliary circuits
• Control circuits
Isolating function acc. to EN 60947-2
Permissible ambient temperature
• Operation
• Storage
Up to 40 ° C
Permissible load
Up to 55 ° C
At rear horizontal main circuit
Up to 60 ° C
connections
Up to 70 ° C
(Cu painted black)
Power loss at I for symmetrical loads
n
Withdrawable circuit breakers
Operating times
• Make-time
• Opening time
• Electrical make-time (through activation solenoid)
• Electrical opening time (through shunt release)
• Electrical opening time (instantaneous undervoltage release)
3)
Endurance
• Mechanical (without maintenance)
• Mechanical (with maintenance)
• Electrical (without maintenance)
• 1000 V version
2)
• Electrical (with maintenance)
Switching frequency
• 600 V version
• 1000 V version
Mounting position
Degree of protection
Auxiliary conductors (Cu) Standard connection = strain-relief clamp
Max. number of • Without end sleeve
auxiliary conductors × • With end sleeve acc. to DIN 46228 Part 2
cross-section • With twin end sleeve
(solid/stranded)
Optional connection = tension spring
• Without end sleeve
• With end sleeve acc. to DIN 46228 Part 2
Weights 3-pole • Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
4-pole • Fixed-mounted circuit breakers
• Withdrawable circuit breakers
• Guide frames
1) Make-time through activation solenoid for synchronization purposes
(short-time excited) 50 ms.
Size
Type
Switching capacity class
Short-circuit breaking capacity
Up to 220 V DC I
cc
Up to 300 V DC I
cc
Up to 600 V DC I
cc
Up to 1000 V DC I
cc
Rated short-time withstand current
0.5 s
1 s
2 s
3 s
1) At U = 220 V DC.
e
2) At U = 300 V DC.
e
52 Siemens · 2009
V DC ... 600/1000
V DC 1000
imp
1)
Oper. cycles
2)
Oper. cycles
Oper. cycles
Oper. cycles
Oper. cycles
I
cw
II
3WL12 10 3WL12 20
A ... 1000 2000
... 600/1000
1000
kV 12 12
kV 4 4
kV 2.5 2.5
Yes Yes
° C
–25/+75 –25/+75
° C
–40/+70 –40/+70
A 1000 2000
A 1000 2000
1000 2000
A
A 1000 1950
W 280 770
ms 35 35
ms 34 34
ms 100 100
ms 73 73
ms 73 73
10 000 10 000
15 000 15 000
6000 6000
1000 1000
15 000 15 000
1/h 60 60
1/h 20 20
3 0 ° 3 0 °
3 0 ° 3 0 °
and/
or
N S E 0 _ 0 0 0 6 1 a N S E 0 _ 0 0 0 6 2 a
IP20 without cabinet door, IP41 with door sealing
frame, IP55 with cover
2
2 × 0.5 mm (AWG 20) ... 2 × 1.5 mm
2
1 × 0.5 mm (AWG 20) ... 1 × 1.5 mm
2
2 × 0.5 mm (AWG 20) ... 2 × 1.5 mm
2
2 × 0.5 mm (AWG 20) ... 2 × 2.5 mm
2
2 × 0.5 mm (AWG 20) ... 2 × 1.5 mm
kg 56 56
kg 60 60
kg 31 31
kg 67 67
kg 72 72
kg 37 37
2) Maintenance means: replace main contact elements and arc chutes
Operating Manual).
3) Further technical specifications on request.
II
3WL12
DC
kA 35
kA 30
kA 25
kA 20
kA --
1) 2) 3) 4)
kA 35 /30 /25 /20
kA --
kA --
3) At U = 600 V DC.
e
4) At U = 1000 V DC.
e
3WL12 40
4000
... 600/1000
1000
12
4
2.5
Yes
–25/+75
–40/+70
4000
3640
3500
3250
1640
35
34
100
73
73
10 000
15 000
4000
1000
15 000
60
20
N S E 0 _ 0 0 9 2 7 a
2 2
(AWG 16); 1 × 2.5 mm (AWG 14)
2
(AWG 16)
2
(AWG 16)
2
(AWG 14)
2
(AWG 16)
64
68
45
77
82
54
(see