Siemens LV 10 · 2004

7/4
SENTRIC Switch Disconnectors
General data
SENTRIC LD Main Control and EMERGENCY STOP Switches from 16 A to 125 A
7
■
Technical specifications
1)With appropriate operating mechanisms according to DIN VDE 0113 (see
selection and ordering data).
Standards DIN VDE 0660, IEC 60947
Switch Type 3LD2 0 3LD2 1 3LD2 2 3LD2 5 3LD2 7 3LD2 8
Number of contacts 3/4 3/4 3/4 3/4 3/4 3/4
Rated insulation voltage
U
i
Rated operating voltage
U
e
Rated frequency
Rated impulse withstand voltage
U
imp
V
AC V
Hz
kV
690
690
50 ... 60
6
690
690
50 ... 60
6
690
690
50 ... 60
6
690
690
50 ... 60
6
690
690
50 ... 60
6
690
690
50 ... 60
6
Rated short-time withstand current (1 s current, rms value)
Short-circuit protection, max. back-up fuse (gL) A
A340
20 640
25 640
50 1260
63 2000
100 2000
125
Rated uninterrupted current IuA16 25 32 63 100 125
AC-21A load-break switch Rated operating current IeA16 25 32 63 100 125
AC-3 motor load switch
in-service switching
of individual motors
Rating
at 220 V ... 240 V
at 380 V ... 440 V
at 660 V/690 V
kW
kW
kW
3.0
5.5
5.5
4.0
7.5
7.5
5.5
9.5
9.5
11.0
18.5
15.0
18.5
30.0
22.0
22.0
37.0
30.0
AC-23A main control switch
Maintenance switch
frequent, but not
in-service switching
of individual motors
Rating
at 220 V ... 240 V
at 380 V ... 440 V
at 660 V/690 V
kW
kW
kW
4.0
7.5
7.5
5.0
9.5
9.5
6.0
11.5
11.5
11.0
22.0
18.5
18.5
37.0
30.0
22.0
45.0
37.0
Power loss per conducting path at IeW0.5 1.1 1.8 4.5 7.5 12
Touch protection to DIN VDE 0106 Part 100 yes yes yes yes yes yes
Mechanical endurance Oper-
ating
cycles
100000 100000 100000 100000 100000 100000
Operating frequency 1/h 50 50 50 50 50 50
Permissible ambient temperature °C –25 ... +55 –25 ... +55 –25 ... +55 –25 ... +55 –25 ... +55 –25 ... +55
Isolating characteristics up to ...
V690 690 690 690 690 690
Main control and EMERGENCY-STOP switch characteristics1) yes yes yes yes yes yes
Conductor cross-sections for main conductors
Connection type mm2Clamp connections
solid or stranded 1 ... 6 1.5 ... 16 1.5 ... 16 2.5 ... 35 4 ... 50 4 ... 50
flexible with end sleeve (max.) mm2410 10 16 35 35
Auxiliary switches
Rated insulation voltage
U
iV500 500 500 500 500 500
Rated operating voltage UeAC V 500 500 500 500 500 500
Rated uninterrupted current IuA10 10 10 10 10 10
Rated operating current IeAC-15 at 120 V A 666666
at 220 V ... 240 V A 333333
at 380 V ... 415 V A 1.8 1.8 1.8 1.8 1.8 1.8
at 500 V A 1.4 1.4 1.4 1.4 1.4 1.4
Short-circuit protection, auxiliary switch, max. back-up fuse (gL/gG) A 10 10 10 10 10 10
Conductor cross-section for auxiliary conductors
Connection type Clamp connections
solid or stranded mm22 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 4) 1 ×
(0.75 ... 4) 1 ×
(0.75 ... 4) 1 ×
(0.75 ... 4) 1 ×
(0.75 ... 4)
Finely stranded with end sleeve mm22 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 2.5) 1 ×
(0.75 ... 2.5)
Standards UL/CSA
Switch Type 3LD2 0 3LD2 1 3LD2 2 3LD2 5 3LD2 7 3LD2 8
Rated operating voltage
U
eAC V 600 600 600 600 600 600
Rated uninterrupted current IuA10 20 30 60 100 125
Current rating 600 A 600 A 600 A –––
Pilot duty P600 P600 P600
Conventional thermal current Ith A16 25 32 63 100 125
Max. rating (AC-3) 3∼ 120 V HP 1 – – – – –
AC motors 40 Hz ... 60 Hz 240 V HP 37.5 10 15 30 40
(HP = PS) 480 V HP 7.5 10 20 40 60 75
600 V HP 10 15 30 50 75 100
1∼ 120 V HP 0.5 2 2 – – –
240 V HP 1.5 3 3 10 – –
Conductor cross-sections copper cable AWG 18 ... 10 14 ... 8 14 ... 8 14 ... 6 12 ... 1 12 ... 1
Tightening torque Nm 1.5 ... 2 2 ... 2.5 2 ... 2.5 2.5 ... 3 2.5 ... 3 2.5 ... 3