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