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Siemens SENTRON 3WL Reference Manual page 27

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

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