Siemens 3KA531 Broşür - Sayfa 19
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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