3WL Air Circuit Breakers
27
Siemens · 2009
3WL Air Circuit Breakers/Non-Automatic Air Circuit Breakers up to 6300 A (AC)
General data
1) Opening time on instantaneous short-circuit release with
ETU15B = 85 ms.
2) Make-time through closing solenoid for synchronization purposes
(short-time excited) 50 ms.
3) Maintenance means: replace main contact elements and arc chutes (see
Operating Manual).
4) Use of releases from –20 °C.
5) ETU76B with graphics display can be used up to max. 55 °C.
Size I II
Type ... 3WL11 10 3WL11 12 3WL11 16 3WL12 08 3WL12 10 3WL12 12 3WL12 16 3WL12 20
Rated current I
n
at 40 °C, at 50/60 Hz
Main conductor
N conductor (only on 4-pole versions)
A
A
... 1000
... 1000
1250
1250
1600
1600
800
800
1000
1000
1250
1250
1600
1600
2000
2000
Rated operational voltage U
e
at 50/60 Hz
(for 1000 V version see Catalog LV 1, "Options")
V AC ... 690 ... 690 ... 690 ...
690/1000
...
690/1000
...
690/1000
...
690/1000
...
690/1000
Rated insulation voltage U
i
V AC 1000 1000 1000 1000 1000 1000 1000 1000
Rated impulse withstand voltage U
imp
• Main current paths
• Auxiliary circuits
• Control circuits
kV
kV
kV
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
12
4
2.5
Isolating function acc. to EN 60947-2
Yes Yes Ye s Yes Ye s Yes Ye s Yes
Utilization categories
B
Permissible ambient temperature
• During operation (in operation with LCD max. 55 °C)
4)
• During storage (special conditions for LCDs must be
observed)
° C
° C
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
–25/+70
–40/+70
Permissible load
At rear horizontal main circuit
connections
• Up to 55 ° C (Cu bare)
• Up to 60 ° C (Cu bare)
5)
• Up to 70 ° C (Cu black
painted)
5)
A
A
A
1000
1000
1000
1250
1250
1210
1600
1600
1490
800
800
800
1000
1000
1000
1250
1250
1250
1600
1600
1600
2000
2000
2000
Rated rotor operational voltage U
er
V 2000 2000 2000 2000 2000 2000 2000 2000
Power loss at I
n
With 3-phase symmetrical load
• Fixed-mounted circuit breakers
• Withdrawable circuit breakers
W
W
100
195
105
205
150
350
40
85
45
95
80
165
85
175
180
320
Operating times
• Make-time
• Opening time
• Electrical make-time (through closing solenoid)
2)
• Electrical opening time (through shunt release)
• Electrical opening time (instant. undervoltage release)
• Opening time due to ETU, instant. short-circuit release
ms
ms
ms
ms
ms
ms
35
38
80
73
73
50
1)
35
38
80
73
73
50
1)
35
38
80
73
73
50
1)
35
34
100
73
73
50
1)
35
34
100
73
73
50
1)
35
34
100
73
73
50
1)
35
34
100
73
73
50
1)
35
34
100
73
73
50
1)
Endurance
• Mechanical (without maintenance) Oper. cycles
• Mechanical (with maintenance)
3)
Oper. cycles
• Electrical (without maintenance) Oper. cycles
• 1000 V version, electrical (without maintenance) Oper. cycles
• 1150 V version, electrical (without maintenance) Oper. cycles
• Electrical (with maintenance)
3)
Oper. cycles
10 000
20 000
10 000
--
--
20 000
10 000
20 000
10 000
--
--
20 000
10 000
20 000
10 000
--
--
20 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
10 000
15 000
7500
1000
500
15 000
Switching frequency
• 690 V version
• 1000 V version
• 1150 V version
1/h
1/h
1/h
60
--
--
60
--
--
60
--
--
60
20
20
60
20
20
60
20
20
60
20
20
60
20
20
Minimum interval
between tripping operation by solid-state
release and next making operation of the circuit breaker (only
with autom. mechanical resetting of the lockout device)
ms 80 80 80 80 80 80 80 80
Mounting position
and/
or
Degree of protection IP20 without cabinet door, IP41 with door sealing frame, IP55 with cover
Main conductor
minimum
cross-sections
• Copper bars,
bare
• Copper bars,
painted black
Units
mm
2
Units
mm
2
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
1 ×
50 × 10
1 ×
50 × 10
1 ×
60 × 10
1 ×
60 × 10
2 ×
40 × 10
2 ×
40 × 10
2 ×
50 × 10
2 ×
50 × 10
3 ×
50 × 10
3 ×
50 × 10
Auxiliary conductors (Cu)
Max. number of
auxiliary conductors ×
cross-section (solid/stranded)
Standard connection =
strain-relief clamp
• Without end sleeve
• With end sleeve acc. to
DIN 46228 Part 2
• With twin end sleeve
2 × 0.5 mm
2
(AWG 20) ... 2 × 1.5 mm
2
(AWG 16); 1 × 2.5 mm
2
(AWG 14)
1 × 0.5 mm
2
(AWG 20) ... 1 × 1.5 mm
2
(AWG 16)
2 × 0.5 mm
2
(AWG 20) ... 2 × 1.5 mm
2
(AWG 16)
Optional connection =
tension spring
• Without end sleeve
• With end sleeve acc. to
DIN 46228 Part 2
2 × 0.5 mm
2
(AWG 20) ... 2 × 2.5 mm
2
(AWG 14)
2 × 0.5 mm
2
(AWG 20) ... 2 × 1.5 mm
2
(AWG 16)
Position indicator switches Tension spring terminals
1 × 0.5 mm
2
(AWG 20) ... 1 × 2.5 mm
2
(AWG 14)
Weights 3-pole
4-pole
• Fixed-mounted circuit
breakers
• Withdrawable circuit
breakers
• Guide frames
• Fixed-mounted circuit
breakers
• Withdrawable circuit
breakers
• Guide frames
kg
kg
kg
kg
kg
kg
43
45
25
50
54
30
43
45
25
50
54
30
43
45
25
50
54
30
56
60
31
67
72
37
56
60
31
67
72
37
56
60
31
67
72
37
56
60
31
67
72
37
56
60
31
67
72
37
N S E 0 _ 0 0 0 6 1 a
3 0 °
3 0 °
N S E 0 _ 0 0 0 6 2 a
3 0 ° 3 0 °
N S E 0 _ 0 0 9 2 7 a
h
= 1 m m
m a x .
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