Order No.: B_LSDH_5340199
3
Contactors
LSDH63G3, LSDH64G3 (1000 V)
LSDH82G3, LSDH83G3 (1000 V)
Operating Instructions
English
IP00
For dimension drawings see
Fig. I
(Dimensions in mm).
Minimum clearance to earthed parts.
Screw-fastening on level vertical surface with 4 M10 screws, maximum tightening torque 23
Nm. Fasten screws with plain washers (diameter 25 mm, thickness 4 mm) and spring was-
hers provided. Use M8 screws (25 Nm max.) for the additional plate on LSDH6.../LSDH8...
for facilitating installation.
During installation, cover off the contactors if foreign bodies (e.g. drilling swarf) might fall
onto them. In the event of contamination danger, heavy dust or an aggressive atmosphere
install the contactors in housings. For permissible mounting positions see
Fig. II
.
To meet the conditions for positively-driven operation between main contacts and the NC
elements of the auxiliary contacts, 1 NC element of the right-hand and left-hand auxiliary
contact block must be connected in series.
Terminal screws are supplied loose.
For connection see
Fig. III
.
Note the control voltage (see printed coil plate).
The switching state of the contactor is shown by the indicator, see
Fig. V
. For LSDH6...
only: The operating time of the contactor of 70 to 120 ms can be reduced to 22 to 65 ms by
cutting through the
yellow
wire jumper, see
Fig. VI
. Reversing operation is then no longer
permissible.
After a short-circuit in the system, the switching state is not clearly shown by the indicator.
In this event, ensure that the main circuit is isolated. Then perform several off-load swit-
ching operations on the contactor. If the interrupter fusion does not come apart, the interrup-
ters must be renewed.
For an overvoltage test, the protective-circuit leads must be disconnected, see
Fig. VIIa
, as
otherwise the integrated overvoltage limiter is destroyed.
If the load side is changed, the protective-circuit wire connections at the terminal screws
must be changed over, see
Fig. VIIa
to c
. For this, the middle interrupter must be removed,
see
Fig. XIa
to d
. If the contactor is used in combination with frequency converters, the pro-
tective circuit must be disconnected.
With contactors for momentary-contact control, use relays without reclosing lockout; with
contactors for maintained-contact control, use relays with reclosing lockout.
The following are replaceable: Casing upper section with operating mechanism, vacuum
interrupters, magnet coil, auxiliary contact blocks.
In order to assure operating reliability of the contactors, only original spare parts may be
used!
Cleaning
Remove dust deposits (with a vacuum cleaner).
Renewing the auxiliary contact blocks
If necessary, the complete auxiliary contact block can be replaced (two
auxiliary contacts each with 2NO+2NC); see
Fig. VIII
.
For renewing the casing upper section,
see
Fig. IX
.
For checking the vacuum interrupter erosion indication,
see
Fig. X
.
The erosion on the vacuum interrupters can be checked in the closed state by means of 3
white double slides below the connections on the load side. If the clearance on one double
slide in the closed state is less than 0.5 mm, the interrupter must be renewed. To ensure
good operating reliability, it is advisable to renew all interrupters together.
Renewing the vacuum interrupters:
Remove and install the vacuum interrupters individually, i.e. one after the other! For remo-
ving, see
Fig. XIa to e
and installation.
For renewing the magnet coil,
see
Fig. XIIa to i
The coil and closing electronics must be replaced together. Ensure that the magnet pole
faces are clean; do not use any grease solvents for cleaning, do not apply oil and do not
scratch them with sharp objects.
DANGER
Hazardous voltage. Will cause death or serious injury.
Turn off and lock out all power supplying this device before working on
this device. Installation and maintenance work on this device may only
be carried out by an authorized electrician.
Mounting
Connection
Permissible cross-sections for main conductors:
LSDH6...
LSDH8...
1 or 2 conductors connectable
Finely stranded with cable lug
50 to 240 mm
2
50 to 240 mm
2
Stranded with cable lug
70 to 240 mm
2
70 to 240 mm
2
Connection bars
max. 2 x 50 x 5
up to 690 V
max. 2 x 60 x 5
up to 1000 V
max. 2 x 50 x 5
AWG leads,
solid and stranded
2/0 to 500 MCM
2/0 to 500 MCM
Terminal screws
M10x30
M12 x 40
Tightening torque
14 to 24 Nm/
124 to 210 Ib.in
20 to 35 Nm/
177 to 310 Ib.in
Permissible cross-sections for auxiliary conductors:
LSDH6.../LSDH8...
Solid and stranded
2 x 0,5 to 1 mm
2
; 2 x 1 to 2,5 mm
2
Finely stranded with core end
2 x 0,5 to 1 mm
2
; 2 x 0,75 to 2,5 mm
2
Pin cable lug
2 x 1 to 1,5 mm
2
Push-on tab B2,8
2 x 0,3 to 1,5 mm
2
AWG leads,
solid and stranded
18 to 12
Insulation stripping length
10 mm
Tightening torque
0,8 to 1,4 Nm/7 to 12 lb.in
Use 75° copper wire only.
For circuit diagram and position of terminals see
Fig. IV
.
For circuit diagram (NEMA) see
Fig. A
.
Operation
!
Maintainance
Technical Data
LSDH6...
LSDH8...
Weight
approx. 16 kg
approx. 19 kg
Permissible ambient temperature
- Operation
- 25 to +55 °C
- 25 to +55 °C
- Storage
- 50 to +80 °C
- 50 to +80 °C
LSDH6...:
Main circuit
Insulation rating U
i
AC 1000 V
Rated operational current at 55 °C
I
e
AC-1
AC-3
AC-4
up to
- 690 V
A
630
630
300
at
- 1000 V
A
450
435
210
I
e
AC-1 (690 V)
at 40 °C
700 A
Rating
P
N
AC-1
AC-3
AC-4
at
- 230/220 V
kW
240
191
93
- 240 V
kW
262
208
101
- 400/380 V
kW
415
335
160
- 415 V
kW
453
360
175
- 500 V
kW
545
434
210
- 690/660 V
kW
720
573
253
- 1000 V
kW
780
600
290
LSDH8...:
Main circuit
Insulation rating U
i
AC 1000 V
Rated operational current at 55 °C
I
e
AC-1
AC-3
AC-4
up to
- 690 V
A
850
820
360
at
- 1000 V
A
800
580
250
I
e
AC-1 (690 V) at 40 °C
910 A
Rating
P
N
AC-1
AC-3
AC-4
at
- 230/220 V
kW
323
260
110
- 240 V
kW
353
280
120
- 400/380 V
kW
559
450
160
- 415 V
kW
610
500
200
- 500 V
kW
736
600
250
- 690 V
kW
971
800
350
- 1000 V
kW
1385
800
350
Horsepower Ratings (
s
and
u
)
Rated insulation voltage U
i
AC 600 V
Rated output of three-phase motors at 60 Hz
