L 2 control switches
Quick ordering - L2 control switches complete
Control switches complete with knob
Individually packaged
Off/on switch - panel mounted with standard knob
OFF
ON
Description
Cat. No.
1 pole 12 A with screw fixing knob
SA-LE2-12-1781
1 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-1781
2 pole 12 A with screw fixing knob
SA-LE2-12-1782
2 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-1782
Changeover switch with off - panel mounted with standard knob
OFF
MAN
AUTO
1 pole 12 A with screw fixing knob
SA-LE2-12-3501
1 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-3501
2 pole 12 A with screw fixing knob
SA-LE2-12-3502
2 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-3502
Changeover switch without off - panel mounted with standard knob
AUTO
MAN
1 pole 12 A with screw fixing knob
SA-LE2-12-2501
1 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-2501
2 pole 12 A with screw fixing knob
SA-LE2-12-2502
2 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-2502
Ammeter switch for 3 C.T.’s - panel mounted with standard knob
0
3
1
1 pole 12 A with screw fixing knob
SA-LE2-12-8751
1 pole 12 A with 22.5 mm fixing knob
CA-LE2-12-8751
2
Stop/start switch with spring return - panel mounted with standard knob
STOP
START
Stop/start 12 A with screw fixing knob
SA-LE2-12-9251
Stop/start 12 A with 22.5 mm fixing knob
CA-LE2-12-9251
Complete LE2 switch
Complete individually packaged LE2 switch
L 2 control switches
Special order form
For special switch manufacture, please photocopy this form, fill in the required details and mail or fax it to your nearest
NHP Office or Agent for immediate attention. Contact State office
Name:
_________________________________
Date
Quantity
Date required
Order No.
Company: _________________________________
Address:
Ph: (
_________________________________
)
Melbourne
___________ Fax: (
Sydney
Brisbane
) __________
Adelaide
Perth
Newcastle
Townsville Rockhampton Toowoomba
Fax (03) 9429 1075 (02) 9648 4353 (07) 3891 6139 (08) 8371 0962 (08) 9272 3906 (02) 4960 2203 (07) 4775 1457
(07) 4922 2947
Cairns
Darwin
(07) 4633 1796 (07) 4035 6999 (08) 8947 2049
L 2 control switches
Mounting and dimensions
For LE panel mounted switches (screw fixing)
Drilling plan for handle
)
2
LE 2 - 12/16
2
3
4
5
6
7
8
Control knob
P
Cat. No.
B
Q
L for LE 2 12/16 44
54
64
74
84
94
104
114
LFS 2-A-4
28
36
48 x 48
L for LE 2 20/25 44.5
57
69.5
82
94.5
107
119.5 132
LFS 2-I-4
28
36
48 x 48
LFS 2-S-4
28
36
48 x 62
No. of wafers
Note:
)
2
1
Centre hole 9.5 mm. 4 hole fixing 36 x 36 mm, 2 hole fixing 32 mm.
For LE panel mounted switches
22.5 mm central nut mounting
Drilling plan
2
3
4
5
L for LE 2 12/16 67.5
77.5
87.5
97.5
107.5 117.5 127.5 137.5
L for LE 2 20/25 69
81.5
94
106.5 119
No. of wafers
1
For LA base mounted switches
6
7
131.5 144
8
156.5
Drilling plan for handle
1
)
2
3
4
Y
X
L for LA 2 12/16 58
68
78
88
Min 2.5
≥ 150
L for LA 2 20/25 58
71.5
84
96.5
Max 9.5
≥ 90
No. of wafers
Note:
)
1
1
Add 2.5 mm for DIN rail mounting.
All dimensions in mm (approx.)
L 2 control switches
Technical data
Switches
L 2-12
L 2-16
L 2-20
L 2-25
Rated operating voltage
IEC/VDE/BS
[V]
660
660
660
660
Main switch performance
VDE isolation conditions
[V]
660
660
660
660
impulse voltage Uimp of
[kV]
6
6
6
6
IEC/VDE/BS
[A]
16
20
25
30
IEC/VDE/BS
[A]
12
16
20
25
are fulfiled up to a rated
Rated thermal current Ith 40 °C
open
Rated thermal current Ithe 60 °C
enclosed
Rated operating current Ie
AC 1/
AC 21 A
switching resistive loads with
slight overload
IEC 947
660 V
[A]
12
16
20
25
AC 22 A
switching mixed resistive
IEC 947
220-500 V [A]
12
16
20
25
600 V
12
16
20
25
and inductive loads at
[A]
slight overload
AC 23 A
AC 15
periodic switching of motors
(selection criterion for main switches)
380-440 V [kW]
4
5.5
7.5
11
switching magnetic drives,
220-240 V [A]
5
6
7
8
380-415 V [A]
3
4
5
6
500 V
2
2.5
3
4
4
5.5
7.5
11
IEC 947
motors, valves and solenoids
AC 3
[A]
starting of cage motors
(interruption whilst running)
380-440 V [kW]
single or stranded
mm2
2 x 2.5 2 x 2.5 6
6
fine strands (with sleeve)
mm
2 x 2.5 2 x 2.5 2 x 4
2x4
[kAeff]
0.48
0.48
0.6
0.75
[A]
20
20
20
25
[kA]
6
6
5
5
million operations
1
1
1
1
switching rate mechanical
operations per hour
1200
1200
1200
1200
switching rate electrical
operations per hour
120
120
120
120
mechanism (escutcheon)
-
IP 65
IP 65
IP 65
IP 65
switch body
-
IP 20
IP 20
IP 20
IP 20
operation
min/max (˚C)
-20…+60 -20…+60 -20…+60 -20…+60
storage
min/max (˚C)
-30…+70 -30…+70 -30…+70 -30…+70
Max wire sizes
2
Short circuit current
rated short-time (1 s)
max. fuse rating of circuit
(gL characteristic)
rated conditional
Mechanical life
Protection class (IEC 529)
Ambient temperature
L 2 control switches
Introduction
L 2 control switches
The traditional L 2 range of control switches are available in current ratings of 12, 16, 20, 25
amps in two frame sizes of 12/16 and 20/25 amps. The L 2 range offers a number of
advantages over traditional designs providing a high degree of compatibility with existing
products while offering a wide choice of options and fixing methods. The modular design
approach allows easy adaptation to particular customer requirements.
Screw fixing or 22.5 mm mounting
Control knobs are available with standard screw fixing (LFS) or central nut mounting requiring a
single 22.5 mm hole to be drilled (LFC). Both options can be supplied by selecting the correct
control knob. The same switch body is used for both mounting types.
IP 65 control knobs
All control knobs conform to the protection classification IP 65 and are therefore suitable for use
in arduous environments.
Panel mounted LE 2
switch
PLC compatibility
All LE 2-12 switches are supplied with electronic compatible contacts to DIN 19240 standards
for switching of PLC inputs etc.
All terminals are accessible from
the rear even with a mounted switch.
Optional base mounted
LA 2 control switch
Screw fixing holes fit
popular switch brands.
Safety and quality
❍ Touch proof terminals (IP 20)
Escutcheon fitted with
header plate
❍ IP 65 control knobs
❍ Long operational life and high reliability
❍ Positive switching action with clearly
defined switching point
❍ All switch bodies are manufactured from
self extinguishing materials
(corresponding to class UL 94VO)
Time saving installation
❍ Captive terminal screws already open
for fast installation
❍ Robust screwdriver guide for easy
wiring using manual or power
screwdriver
❍ Clear terminal markings prevents wiring
mistakes
❍ Easy access to switch terminals (angled
screws)
❍ Screw fixing or single 22.5 mm hole
mounting
L 2 control switches
Ordering example
Ordering example
L 2 switch body
12…25 A
Cat. No.
For panel mounting
Switch body 1)
screw fixing
(also for central fixing in conjunction
with control knob LFC)
LE 2-
-
LA 2-
-
LE 2
For base mounting
Switch body
screw fixing or snap-on to
DIN rails EN 50 022-35
including door coupling parts
(ON/OFF switch with door interlock)
LA 2
Switch units
Enter rated current (12, 16, 20, 25)
Circuit diagram
Enter circuit diagram numbers
(eg. ‘1781’ for 1 pole off-on switch)
L 2 control knobs
Protection class IP 65
LFS 2 - A
-
4
-
325
Mounting
LFS - screw fixing
LFC - 22.5 mm hole
Knob type 2)
A - Standard
E - Padlockable
B - With front ring
Escutcheon size 2)
4 - 48 x 48 mm
6 - 64 x 64 mm
Switch function
Notes:
)
1
)
2
L2 switch can be modified for control fixing with the aid of a snap-on
module supplied with the control knob LFC2.
Other options available.
Product flexibility
With the L 2 range of control switches, the switch body (switching
part) is ordered separately to the control knob. This results in a
great deal of flexibility in the type of operating knob and mounting
possibilities.
As an example, if the switch body type LE 2-12-3501 is selected, a
choice of control knobs is made. The standard knob LFS 2-A-4350R is the screw fixing type. For 22.5 mm single hole mounting
the knob LFC 2-A-4-350R can be selected. It is even possible to
use this switch body with a key operator LFC 2-CC-4-350. The
choice is left up to the customer.
L 2 control switch bodies - panel mounted
Control knobs for L2 panel mounted switch bodies
Off/on - changeover - stop/start
Off/on - changeover - stop/start
Standard switch bodies for panel mounting
Please refer to opposite page for control knob selection
Function
AC 21
AC 22
Amps 1)
Diagram
AC 23
@ 415V
kW
No. of
poles
Switch
wafers
Switch body
Cat. No.
Control knobs IP 65 complete with engraved escutcheons
Please refer to opposite page for standard switch bodies
Price $
1
2
1
90°
ON
ON
3
2
4
1
3
OFF
12
1
1
LE 2-12-1781
23.80
20
1
1
LE 2-20-1781
33.50
12
2
1
LE 2-12-1782
26.30
2
4
6
1
3
5
7
2
4
6
8
1
LE 2-20-1782
41.50
3
2
LE 2-12-1783
33.50
22.5mm mounting standard knob
5.5
3
2
LE 2-16-1783
42.50
48 x 48mm frame
20
7.5
3
2
LE 2-20-1783
54.00
25
11
3
2
12
4
4
20
7.5
12
LE 2-25-1783
67.00
2
LE 2-12-1784
41.50
4
2
LE 2-20-1784
62.00
4
4
2
LE 2-12-17642)
39.50
5.5
4
2
LE 2-16-17642)
49.00
20
7.5
4
2
LE 2-20-17642)
62.00
25
11
4
2
LE 2-25-17642)
78.00
1
1
LE 2-12-3501
28.30
1
1
2
3 1
2
3 1
20
Off-on
A
LFS 2-A-4-178 I )
7.70
Off-on
E
LFS 2-E-4-178 I )
12.00
Off-on
A
LFC 2-A-4-178 I )
10.70
-
B
LFC 2-B-001
Off-on
C
LFC 2-CC-4-178 I )
Cat. No.
Price $
6
11 9
10
3 1
7 5
11 9
15 13
2
6
10
14
3
3
48 x 48mm frame
22.5mm mounting 30mm dia frame
3
8.10
without escutcheon 2)
Key operated 22.5mm mounting
3
52.10
48 x 48mm frame
5
(key removable in off position)
Type B knob
OFF
Standard knob
Man - OFF - auto A
LFS 2-A-4-350R
48 x 48mm frame
Local - O - remote A
LFS 2-A-4-350S
Standard knob
1-O-2
A
LFS 2-A-4-350
Man - O - auto
E
LFS 2-E-4-350R
12.00
22.5mm mounting standard knob
Man - O - auto
A
LFC 2-A-4-350R
10.70
48 x 48mm frame
1-O-2
A
LFC 2-A-4-350
10.70
Local - O - remote A
LFC 2-A-4-350S
10.70
22.5mm mounting 30mm dia frame
-
B
LFC 2-B-001
1-O-2
C
LFC 2-CC-4-350
LE 2-20-3501
41.50
2
LE 2-12-3502
39.30
2
2
LE 2-20-3502
62.00
48 x 48mm frame
12
4
3
3
LE 2-12-3503
52.00
Padlockable knob
16
5.5
3
3
LE 2-16-3503
67.00
48 x 48mm frame
20
7.5
3
3
LE 2-20-3503
82.00
25
11
3
3
LE 2-25-3503
103.00
12
4
4
4
16
5.5
4
4
20
7.5
4
4
25
11
4
4
12
20
6
7 5
2
Knob
type
Control knobs for changeover with off switch bodies
12
7 5
2
3 1
2
ON
2
4
With 1 early make contact 16
60°
0
)
1
Engraving
48 x 48mm frame
Padlockable knob
16
Changeover with off switch body
1
Standard knob
OFF
12
20
5
90°
5
Description
Control knobs for off/on switch bodies
Off/on switch body
OFF
Function
LE 2-12-3504
A
A
67.00
LE 2-16-3504
82.00
LE 2-20-3504
103.00
LE 2-25-3504
122.00
MAN
AUTO
0
1
2
7.70
7.70
7.70
8.10
without escutcheon 2)
Key operated 22.5mm
52.10
48 x 48mm frame (key removable in O position)
Stop/start with spring return switch body
STOP
START
45°
Control knobs for stop/start with spring return switch bodies
12
1
1
LE 2-12-9251
27.30
20
1
1
LE 2-20-9251
41.50
Standard knob
STOP
START
Stop - start
A
LFS 2-A-4-925
7.70
Stop - start
A
LFC 2-A-4-925
10.70
Stop - start
C
LFC 2-CC-4-925
52.10
48 x 48mm frame
22.5mm mounting standard knob
N/L2
A/L1
2
4
48 x 48mm frame
1
3
Key operated 22.5mm
48 x 48mm frame
(key removable in centre position)
Example
❍ Order the switch body eg. LE 2-12-3501
❍ Order the control knob eg. LFC 2-A-4-350R
Notes:
1
2
)
)
A
All switch functions available in current ratings 12, 16, 20 and 25 amp on request.
Control knob for 1764 version replace 178I with suffix 175I.
Assembled to customer order/requirements.
Price Schedule ‘A2’
5-6
Notes:
1
2
3
)
)
)
All escutcheon plates have silver background with black knob unless stated otherwise.
Same appearance as DT 3 selector switches.
Control knob for 1764 version replace 178I with suffice 175I.
Price Schedule ‘A2’
5-7
L 2 control switches
Ordering details - control knobs with escutcheon
A
E
Protection class IP 65
Cat. No.
With central fixing 1)
(for LE switches only)
LFC 2-
-
-
With screw fixing
(for LE and LA switches)
LFS 2-
-
-
Standard version
Black front frame, silver-grey legend plate,
black knob
A
With front ring (LFC only),
black knob, without escutcheon (same appearance as D5)
B
With locking key (LFC only) - Key number 152
black escutcheon frame,
Withdrawing position:
silver-grey legend plate
CC
(Special key combinations and withdrawing
CD
positions available on request)
CG
CH
CK
G
I
With front ring (LFC only) - Key number 152
Withdrawing position without escutcheon
DC
(Special key combinations and withdrawing
DD
positions available on request)
DG
(same appearance as D5 pushbutton range)
DH
DK
N
L
Main switches
Black front frame
silver-grey legend plate, black knob,
locking facility for 1 padlock
Grey escutcheon, black disc-type knob,
locking facility for 3 padlocks (LFS only)
Emergency off
Black frame, yellow legend plate, red knob
Main switch/emergency off
Black frame, yellow legend plate, red knob,
locking facility for 1 padlock
Yellow escutcheon, red disc-type knob,
locking facility for 3 padlocks (LFS only)
S
P
E
G 4)
I
L
N 4)
Standard 45 mm cutout (LFS only)
Grey cap, black knob
P
Rectangular version (LFS only)
Black front frame,
silver-grey legend plate,
black knob,
blank silver-grey nameplate
S
Escutcheons )
Size
48 x 48 mm
48 x 62 mm
45 x 54 mm
64 x 64 mm
64 x 78 mm
67 x 67 mm
2
CC…CK
B
Notes:
DC…DK
)
)
3
)
4
)
1
2
Standard marking No.
without legend plate
Special engraving
Escutcheon plate type
A, E, I, L
S
P
A, E, I, L 4)
S 4)
G, N 4)
4
4
4
6
6
6
001
SPE
L 2 switches can be modified for central fixing with the aid of a snap-on module supplied with the escutcheon plate LFC 2.
Does not apply to escutcheon plates B and D.
The letter ‘Z’ signifies a different marking with the same circuit diagram (eg. 175 I for OFF/ON instead of 175 for 0-1).
Larger escutcheon available. For main switches OFF/ON refer handles for L 7 switches in section 11 Part A.