Základní přehled polohových spínačů ...
Poznámky redaktora
. and N......................-S
• Self clipping LS4........ contacts
12 .....O.
• Opening guaranteed the "N.......M)
• Pivoting from 360° ith screw (LS3.....
LS3..
8 -
' ..............O.. Safety device
C ontact types:
11 ..................." contact(s) when the small latch withdrawn from the limit switch......... N....C.M.O. only)
Snap action:
B Snap (for N. contacts only)
O perating heads: (see panorama)
80 .........C...............
• Associated with other standard limit switches and safety switching devices, they produce automatic control circuits meeting standard 954-1.........
• Electrically separated contacts................-S (30 width) safety limit switches with key, which are made zinc alloy (zamak), have degree protection IP66..................
1 cable inlet 1/2" NPT plastic adaptor (LS35P) 1/2" NPT cable gland
(LS35M).....-S (30 width) and LS4....M.
2 operating head options:
• Adjustable every 90° assem bled using screws
(L3..P LS4...........M........... (LS4...........M ............P LS3.M) and
5 small latch (key) options (for LS4.....P/M only)
• Positive opening operation @
• Snap action (only blocks contacts)
• Slow action
• The contacts are electricaly separated________
Connecting term inals
• 3....
1 cable inlet 1/2" NPT cable gland.........C...M . contacts (LS4................. N........ 1N....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: .P.....................5 cable gland ................
M etal casing .. LS4.P......O....................
• They contribute protection operators working dangerous machines, opening the control circuit......)...P.......... N..C.........P.......-S
• Closed using screws LS4...............
• Capability for strong current switching (conventional thermal current A)...O............. Continuously pivoting from 360° (LS3......M)
and screws (L4.........2 N.-S
• Closed using screws LS3..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..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.....P.................M only)
• 3...C......
E
P lastic casing............ contacts (LS4........ contacts
03 .................5 cable gland ......P81
or LS3.......................
• They comply with the requirements European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform to
European international standards...M......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......... Slow ultaneous
D Non-overlapping late make
C ........... N........
• Immunity electromagnetic disturbances..........
Description
LS3......... N.... djustable every 90°
81 ..
1 cable inlet cable gland ....P), screws (L3.
1 cable inlet ISO cable gland .......... only)
0 ..... N......P LS3.....C...........-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.M81 only)
Casing:
• idth with standardized dim ensions according
to 50047
• idth with standardized dim ensions according
to 50041
Block contacts
• ontact configuration: N..C................P.....1 N...........,
1 N........................C....., N.1 N.........
• Contact blocks with dependent action and positive opening operation the "N..................................
1 cable inlet ISO cable gland .....-S (40 width) safety limit switches with key, which are made aluminium alloy, have degree protection IP66...............
1 cable inlet ISO cable ........
LS4..
• Precision operation positions (consistency).....M only)
42
LS
5
4
1SBC141157CG2G2
....C..C....-S
O piece sealing gasket ensure tightness
Electrical connection:
• (LS30P/M LS40P/M) cable inlet for 13.............
Casing width: ." normally closed contact(s) (symbol ©)...C...
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. contacts only)
Dependent (slow) action:
L .5 (+,-) pozidriv screw
(Screw head with captive cable clamp)
7 small latch (key) options (for LS3. orLS4......P), screws (L4................. Use sliding pivoting protectors (covers, cases, doors, grids, etc....
1 cable inlet 13.......... Withdrawal the small latch (key)
by opening the mobile protector causes immediate stopping the machine drive....... 3
1 cable inlet 13.....M LS4....O..C......Zb verlapping early make (for 1N.. N..C.....
