Základní přehled polohových spínačů ...
Poznámky redaktora
. Use sliding pivoting protectors (covers, cases, doors, grids, etc....... djustable every 90°
81 .P.................................P LS4...O.P...... N....
2 operating head options:
• Adjustable every 90° assem bled using screws
(L3....... (LS4....M) and
5 small latch (key) options (for LS4.. 3
1 cable inlet 13........M ....M81 only)
Casing:
• idth with standardized dim ensions according
to 50047
• idth with standardized dim ensions according
to 50041
Block contacts
• ontact configuration: N.............-S (30 width) and LS4........
LS4...
• They comply with the requirements European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform to
European international standards...................O..2 N.M)
and screws (L4.. orLS4..............P/M only)
• Positive opening operation @
• Snap action (only blocks contacts)
• Slow action
• The contacts are electricaly separated________
Connecting term inals
• 3.................................P), screws (L3....5 cable gland
• (LS31P/M) cable inlet cable gland
• (LS32P/M) cable inlet ISO cable gland
• (LS33P/M LS43P/M) cable inlet for ISO cable gland
• (LS35P) cable inlet 1/2" NPT plastic adaptor
• (LS35M LS45P/M) cable inlet for 1/2" NPT
cable gland
Suitable for conduit connection only with use adaptor
sleeve optionally provided anufacturer (on request)
Type Example S
L S
3 1
Casing width: .........
• They contribute protection operators working dangerous machines, opening the control circuit...P..............C.................. N...... Continuously pivoting from 360° (LS3..........
1 cable inlet cable gland .
• Opening guaranteed the "N..O.................... Slow ultaneous
D Non-overlapping late make
C . contacts
03 .-S (40 width) safety limit switches with key, which are made fibre-glass reinforced UL-V0 thermo
plastic material, offer double insulation [□] and degree protection IP65..C.......C.5 (+,-) posidriv screw
(Screw head ith captive cable clamp)
• arking conform IEC 60947-1, IEC 60947-5-1,
EN 50005 and 50013 standards
Terminal protective conductor placed near the
cable inlet and arked: (LS3....-S
O piece sealing gasket ensure tightness
Electrical connection:
• (LS30P/M LS40P/M) cable inlet for 13.....P), screws (L4...M.O........-S
• Closed using screws LS3.................. N.
1 cable inlet ISO cable gland ...M .. contacts (LS4.C.....................P. only)
Snap action:
B Snap (for N. N...........M LS4.P LS3........
1 cable inlet 1/2" NPT cable gland..............M... LS4....... and N..................
• Precision operation positions (consistency).
1 cable inlet 1/2" NPT plastic adaptor (LS35P) 1/2" NPT cable gland
(LS35M)...P....... contacts only)
O perating heads: (see panorama)
80 ......
• Electrically separated contacts........C....C.. 1N..........C...5 cable gland ............
M etal casing ..
• Capability for strong current switching (conventional thermal current A)......................... N.M........" contact(s) when the small latch withdrawn from the limit switch.-S
• Self clipping LS4.
Casing width: ....
1 cable inlet 13..........O...
LS3.-S
• Closed using screws LS4.........M)
• Pivoting from 360° ith screw (LS3.C.........................
E
P lastic casing............C..C..... contacts (LS4..............
8 -
' ..5 cable gland ..................M) be
ordered separately:
• Right angle key (13 fixing)
• Straight key (13 fixing)
• Straight key right angle key with shock absorber
• Adjustable right angle key
Mounting the casing:
• screws top part width
• screw for idth
Cover
• Closed using screw LS3.....M only)
• 3........1 N....5 (+,-) pozidriv screw
(Screw head with captive cable clamp)
7 small latch (key) options (for LS3... Withdrawal the small latch (key)
by opening the mobile protector causes immediate stopping the machine drive..............C...1 N.M only)
42
LS
5
4
1SBC141157CG2G2
.......
• Immunity electromagnetic disturbances...P81
or LS3.........C.. N.......
These specific features make the limit switches ideal for monitoring and protection industrial machines without inertia which
down-time less than access time the dangerous area....P LS3....... only)
0 ........ Safety device
C ontact types:
11 ..Zb verlapping early make (for 1N........ N................ contacts only)
Dependent (slow) action:
L .O........., N..................M.....
Description
LS3.....Safety Limit Switches with Small Latch (Key)
Double Insulation Plastic Casing IP65 and Width
Metal Casing IP66 and Width
Applications
Easy use, the limit switches with small latch (key) offer specific qualities:
• Visible operation.. contacts
12 ...
• Contact blocks with dependent action and positive opening operation the "N..................................-S (30 width) safety limit switches with key, which are made zinc alloy (zamak), have degree protection IP66............-S (40 width) safety limit switches with key, which are made aluminium alloy, have degree protection IP66.)..........C.....................
• Associated with other standard limit switches and safety switching devices, they produce automatic control circuits meeting standard 954-1.....................
1 cable inlet ISO cable gland .P.....
1 cable inlet ISO cable ......,
1 N....." normally closed contact(s) (symbol ©).....
