Siemens SENTRON 3WL Reference Manual page 4
Air circuit breakers
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Also See for SENTRON 3WL:
- Function manual (146 pages) ,
- Configuration manual (64 pages) ,
- Operating instructions manual (27 pages)
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SENTRON Switching and Protection Devices — Air Circuit Breakers
Introduction
■
Overview
Size I
Size II
Air circuit breakers
3WL air circuit breakers/non-automatic air circuit breakers
up to 6300 A (AC)
Size
Rated current I
n
Number of poles
Rated operational
voltage U
e
Rated ultimate
short-circuit breaking
capacity at 500 V AC
Endurance
Mounting position
Degree of protection
With cover
Without cover
(with door sealing frame)
Dimensions 3-/4-pole
W
D
Fixed
mounting
Withdrawable
NSS0_00535
Type
Solid-state releases for SENTRON 3WL circuit breakers
Overload protection
Short-time delayed
short-circuit protection
Instantaneous
short-circuit protection
Neutral conductor protection
Ground-fault protection
Zone Selective Interlocking
LCD, 4-line
LCD, graphic
Communication through
PROFIBUS DP/MODBUS
Measurement function Plus
Selectable parameter sets
Parameters freely programmable
CubicleBUS
✓ Standard
-- Not available
❑ Optional
1)
ETU15B cannot be used with 3WL circuit breakers, size III.
4
Siemens · 2009
Size III
I, II, III
A
630, 800, 1000, 1250,
1600, 2000, 2500, 3200, 4000,
5000, 6300
3-pole, 4-pole
V AC
Up to 690/1000/1150
V DC
--
Size I
Size II
kA
55/66
66/80/100
Opera-
20000
15000
ting cyc-
les
3 0 °
3 0 °
3 0 ° 3 0 °
N S E 0 _ 0 0 0 6 1 a
N S E 0 _ 0 0 0 6 2 a
IP55
IP41
W mm
320/410
460/590
H mm
434
434
D mm
291
291
H mm
465.5
465.5
D mm
471
471
1)
ETU15B
ETU25B
✓
✓
✓
--
✓
✓
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
--
3WL non-automatic air circuit breakers
up to 4000 A (DC)
II
1000, 2000, 4000
3-pole, 4-pole
--
Up to 1000
Size III
100/150 (3-pole),
30/25/20
130 (4-pole)
(at 300/600/1000 V DC)
10000
15000
3 0 ° 3 0 °
N S E 0 _ 0 0 0 6 1 a
IP55
IP41
704/914
460/590
434
434
291
291
465.5
465.5
471
471
ETU27B
ETU45B
ETU76B
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
✓
❑
❑
❑
❑
--
❑
--
--
✓
--
--
❑
❑
--
❑
❑
--
✓
--
--
✓
--
--
✓
✓
--
3WL air circuit breakers/non-automatic air circuit breakers
according to UL 489 up to 5000 A, see Catalog LV 16.
3 0 °
3 0 °
N S E 0 _ 0 0 0 6 2 a
Rating Plug
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