| Вид документа | Каталожна сторінка |
|---|---|
| Виробник | SIEMENS |
| Моделі | 3NH3 030, 3NH3 031, 3NH3 032, 3NH3 035, 3NH3 038, 3NH3 050, 3NH3 120, 3NH3 122 |
| Група обладнання | electrical |
| Мова документа | англійська |
| Розмір файлу | 0.3 МБ |
Про документ
LV HRC (low-voltage high rupturing capacity) fuse bases from the Siemens BETA Protecting range, for mounting LV HRC fuses in distribution boards. The document covers space requirements and drill hole dimensions for standard bases (3NH3 series) and bases with swivel mechanism (3NH7 series).
Ключові дані
| sizes | 000/00, 0, 1, 2, 3, 4 (plate-mounting bases); 000/00, 1, 3, 4a (swivel-mechanism bases) |
|---|---|
| mounting width size 000/00 | 102 mm (with phase barrier), 106 mm (without end barrier) |
| minimum clearance plate mounting | a = 25 mm |
| swivel base rated current size 000/00 | 160 A |
| swivel base rated current size 4a | 1250 A |
Застосування
- Mounting of LV HRC fuses in low-voltage distribution boards
- Plate mounting or bus-mounting installations
Особливості
- Available with phase barrier, with end barriers, or without barriers
- Swivel mechanism variants (sizes 000/00, 1, 3, 4a)
- Bus-mounting bases available in staggered arrangement (see page 3/60)
Технічні дані
Space requirements — standard bases (mounting width/height/depth)
Space requirements — bus-mounting bases (three 1-pole 3NH3 036 / 3NH3 037, staggered)
| Size | Width 1 unit 3P, with phase barrier | Width 1 unit 3P, without end barrier | Width 3 units 1P, with phase barrier | Width 3 units 1P, without end barrier | Distance through spacer | Height h | Depth d |
|---|---|---|---|---|---|---|---|
| 000/00 | 102 | 106 | 100 | 104²⁾ | 2 | 138 | 86 |
| 0 | -- | -- | 128 | 142 | 7 | 178 | 90 |
| 1 | 163 | 177 | 158 | 172 | 7 | 202 | 110 |
| 2 | -- | -- | 184 | 224 | 20³⁾ | 227 | 118 |
| 3 | -- | -- | 208 | 272 | 32³⁾ | 242 | 132 |
Notes: ²) additional base on barrier does not increase distance; ³) one spacer part can be broken off if installed directly on side wall.
Drill hole dimensions — plate mounting, 3 units 1P, without phase barriers| Size | Type | b1 (mm) | b2 (mm) | b3 (mm) | h1 (mm) | h2 (mm) | l (mm) |
|---|---|---|---|---|---|---|---|
| 000/00 | 3NH3 030, 3NH3 031, 3NH3 032, 3NH3 035, 3NH3 038, 3NH3 050 | 17 | 34 | -- | 48 | 25.5 | 7.5 |
| 0 | 3NH3 120, 3NH3 122 | 19 | 45 | -- | 74 | 25 | 7.5 |
| 1 | 3NH3 220, 3NH3 230 | 9 | 30 | 25.5 | 88 | 25 | 10.5 |
| 2 | 3NH3 320, 3NH3 330 | 9 | 30 | 38.5 | 100 | 25 | 10.5 |
| 3 | 3NH3 420, 3NH3 430 | 9 | 30 | 50.5 | 108 | 25 | 10.5 |
| 4 | 3NH3 530 | 36 | 30 | 95 | 141 | 25 | 13 |
Note: mounted without phase barriers; minimum clearance a = 25 mm required.
LV HRC fuse bases with swivel mechanism| Size | Rated current (A) | Type | f (mm) | g (mm) | h1 (mm) | h2 (mm) | ∅k (mm) | p (mm) |
|---|---|---|---|---|---|---|---|---|
| 000/00 | 160 | 3NH7 030, 3NH7 031, 3NH7 032 | 79 | -- | 9.5 | 25 | 7 | 20 |
| 1 | 250 | 3NH7 230, 3NH7 231, 3NH7 232 | 102.5 | 25 | 19 | 30 | 10.5 | 25 |
| 3 | 630 | 3NH7 330, 3NH7 331, 3NH7 332 | 122.5 | 25 | 30 | 30 | 10.5 | 40 |
| 4a | 1250 | 3NH7 520 | 170 | 30 | 31.5 | 45 | 13 | 50 |
| Connection type | Dimension (mm) |
|---|---|
| Saddle-type terminal connection | 175 |
| Terminal strip | 182 |
Текст документа
© Siemens AG 2009
BETA Protecting
Low-Voltage Fuse Systems
3NH LV HRC fuse bases
■ More information
Space requirements when installing LV HRC fuse bases
3
1 LV HRC fuse base, 3P 3 LV HRC fuse bases, 1P LV HRC partitions
Partition
I2_11361 I2_11362
Spacer
h
d
Sizes Mounting width (mm) of LV HRC fuse bases Mounting Mounting
height (mm) depth (mm)
1 unit, 3P 3 units, 1P Distance 3NX2 0.. barriers with
through spacer matching bases1)
Bases with phase Bases with phase Bases with phase Bases with phase
barrier, without end barrier and 2 end barrier, without end barrier and 2 end
barrier barriers barrier barriers
h d
000/00 102 106 100 1042) 2 138 86
For LV HRC bus-mounting bases, see page 3/60 – 114 90
0 -- -- 128 142 7 178 90
1 163 177 158 172 7 202 110
2 -- -- 184 224 203) 227 118
3 -- -- 208 272 323) 242 132
4 For installation without barriers; for mounting see page 3/60 --
4a Can only be used in bases with swivel mechanism --
1)
This measurement specifies the required overall mounting depth with
base d and the overall mounting height h.
2)
Placing an additional base on the barrier and plug-on part does not
increase the distance, rather the bases lie flat directly on top of one
another.
3)
If the bases are installed directly on a side wall in the distribution board,
one spacer part can be broken off. This would reduce the distance
measurement.
Space requirements when installing LV HRC bus-mounting
bases
Space requirements for three 1-pole 3NH3 036 and 3NH3 037 LV HRC
bus-mounting bases, staggered
I2_11364
Saddle-type terminal connection: 175
Terminal strip: 182
38
71
82
Siemens ET B1 · 10/2009 3/63
© Siemens AG 2009
BETA Protecting
Low-Voltage Fuse Systems
3NH LV HRC fuse bases
Drill hole dimensions for base plate mounting
3 LV HRC fuse bases, 3 units, 1P
Sizes 000/00 and 0 Size 4
I2_11356
I2_11354
h1
l h2 a a h1
h1
l h2
b1 b2 b2 b1
Sizes 1, 2 and 3
h1
I2_11355 h1
l
b1 b2 b3 b2 b3 b2 b1
h2
Sizes Type b1 b2 b3 h1 h2 l
h1 000/00 3NH3 030, 3NH3 031, 17 34 -- 48 25.5 7.5
3NH3 032, 3NH3 035,
3NH3 038, 3NH3 050
0 3NH3 120, 3NH3 122 19 45 -- 74 25 7.5
b1 b2 b3 b2 b3 b2 1 3NH3 220, 3NH3 230 9 30 25.5 88 25 10.5
2 3NH3 320, 3NH3 330 9 30 38.5 100 25 10.5
3 3NH3 420, 3NH3 430 9 30 50.5 108 25 10.5
4 3NH3 530 36 30 95 141 25 13
Note:
These LV HRC fuse bases are mounted without phase barriers.
A minimum clearance of a = 25 mm is required.
LV HRC fuse bases with swivel mechanism
Size 000/00 Sizes 1 and 3 Size 4a
p p
I2_11360a
I2_11358 p
I2_11359
k
k Øk
g g
f
f f
h1 h2 h1
h1 h2 h1
h1 h2 h1
Sizes In Type f g h1 h2 ∅k p
A
000/00 160 3NH7 030, 79 -- 9.5 25 7 20
3NH7 031,
3NH7 032
1 250 3NH7 230, 102.5 25 19 30 10.5 25
3NH7 231,
3NH7 232
3 630 3NH7 330, 122.5 25 30 30 10.5 40
3NH7 331,
3NH7 332
4a 1250 3NH7 520 170 30 31.5 45 13 50
3/64 Siemens ET B1 · 10/2009
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