Stahl 8549/1, Руководство по эксплуатации, Страница: 32 / 52

Technical Data
6
168779 / 854960300010
2011-09-23·BA00·III·en·02
Load and Motor Switch, Load-Break
Switch 8549/1
Main contacts
Connection cross-section
Main terminals Conductor connection:
Connection using several conductors:
*)
Only conductors with the same cross-section are allowed!
**)
Conductors with different cross-sections are allowed! For cross-sections < 70 mm

, the degree
of protection IP2X is not required!
Alligator clips Conductor connection:
If several conductors must be connected (only conductors with the same cross-section):
Tightening torque
Main terminals 25 ... 30 Nm
Alligator clips 1.5 - 1.8 Nm
Auxiliary contacts 0.4 Nm
Auxiliary contacts
Possible auxiliary contacts max. 2 auxiliary contact blocks of Type 8080/1
8080/1-1: slow-action contacts, 1 NC + 1 NO, (normally open contact opens > 20 ms before
opening of the main contact)
8080/1-3: slow-action contacts, 2 NC
8080/1-4: slow-action contacts, 2 NO
Rated operational voltage 250 V AC / DC
400 V AC, for equal potential of both contacts
500 V AC, when 1 NC + 1 NO and the same potential of both contact is used
Rated operational current 6 A
Short-circuit protection 10 A, tripping characteristic: gG according to IEC/EN 60269-1
Connection cross-section
1.5 ... 2.5 mm
2
(AWG 16 ... AWG 14), solid, finely stranded
Material
Switching chamber epoxy resin
Upper enclosure parts PA
Contacts silver stannic oxide
Weight 3-pole: 4.5 kg
3-pole + N: 5.9 kg
Degree of protection IP20 (IEC/EN 60529, finger touch-safe from the top)
Switching torque approx. 3.5 Nm
stranded:
35 ... 150 mm
2
(AWG 2 ... 300 kcmil)
finely stranded:
50 ... 150 mm
2
(AWG 1/0 ... 300 kcmil)
one conductor,

finely stranded
6 ... 10 mm
2
(AWG 10 ... AWG 8)
with insertion prism
with cable lug:
max. 150 mm
2
(max. AWG 300 kcmil)
The degree of protection IP2X is not
required!
with clamping plate and
insertion prism
stranded:
2 x 25 mm
2
... 2 x 50 mm
2

(2 x AWG 4 ... 2 x AWG 1/0)
*)
finely stranded:
2 x 35 mm
2
... 2 x 50 mm
2

(2 x AWG 2... 2 x AWG 1/0)
*)
finely stranded with
end covering sleeve:
2 x 25 mm
2
... 2 x 50 mm
2

(2 x AWG 4 ... 2 x AWG 1/0)
*)
with cable lug:
max. 2 x 150 mm
2

(max. 2 x AWG 300 kcmil)
**)
with clamping plate and
insertion prism
one conductor,

finely stranded
0.5 ... 10 mm
2
(AWG 20 ... AWG 8)
one conductor,

finely stranded
max. 2 x 6 mm
2
(max. 2 x AWG 10)