Siemens 3KA55 Brochura - Página 19

Procurar online ou descarregar pdf Brochura para Interruptor Siemens 3KA55. Siemens 3KA55 50 páginas. Switch disconnectors and fuses

Imprimir página
Siemens 3KA55 Brochura
Standards
Type
Capacitor switching capacity
at AC 400 V
Capacitor power
Rated current I
n
at AC 525 V
Capacitor power
Rated current I
n
Permissible ambient temperature
Mechanical endurance
Degree of protection
(with respect to the operator side)
Without molded-plastic masking frame/cable
lug cover
With molded-plastic blanking plate/cable lug
cover
Power loss of the switch disconnector at I
(plus power loss of the fuse links)
Without busbar adapter
With busbar adapter
Main conductor connection
Flat pad connection for cable lug,
max. conductor cross-section (stranded)
Box terminal/supply terminal
(finely stranded with end sleeve)
Conductor bar (width x thickness)
Louvered Cu strips, unperforated in terminals
(width × thickness)
Tightening torque for terminal screws
For flat pad connection
With SIGUT box terminal/connection terminal
Auxiliary switch 1 CO (Accessory)
3NY3 035 AC 50 Hz/60 Hz up to 230 V
Rated operating current I
at AC-14
e
3NY3 030 AC 50 Hz/60 Hz up to 230 V
Rated operating current I
at AC-13
e
Permissible mounting position
1) Only for isolating links; otherwise note instructions of the fuse manufac-
turer.
SENTRIC NP Fuse Switch Disconnectors
IEC 60 947-1, IEC 60 947-3, VDE 0660 Part 107
3NP40 1
kvar
50
A
72
kvar
50
A
55
1)
°C
–25 ... +55
for operation, –50 ... +80 for storage
Operations
2000
IP00 (3NP40 with box terminal and properly connected conductors: IP20)
IP30 (contacts closed), IP20 (contacts open)
th
W
4.5 (at 100 A)
W
8.5 (at 100 A)
2
mm
–
2
mm
1.5 ... 50 (35)
mm
–
mm
8 × 8
Nm
–
Nm
3 ... 3.5
A
0.25 (I
= 5 A), at DC 24 V: I
th
A
0.1 (I
= 0.1 A); plug-in sleeve to DIN 46245: A 2.8 – 1
th
Vertical or horizontal (no reduction in specified switching capacity)
3NP40 7
3NP42 7
50
–
72
–
50
–
55
–
2000
1600
a
10
15
20
47
up to 2 × 70
up to 150
(M 8)
(M 10)
2.5 ... 70 (50)
70 ... 150
22 × 5
22–30 × 5–10
up to 9 × 8
up to 16 × 8
10 ... 12
25
8 ... 10
6
= 0.45 A; flat connector to DIN 46244: A 2.8 × 0.5
e
Siemens LV 10 · 2004
General data
3NP43 7
3NP44 7
–
–
–
–
–
–
–
–
1000
1000
30
47
83
127
up to 240
up to 2 × 240
(M 10)
(M 12)
120 ... 240
150 ... 300
22–30 × 5–10
25–40 × 5–10
up to 20 × 10
up to 24 × 10
25
30
8
8
7/19
7