Základní přehled polohových spínačů ...
Poznámky redaktora
........ safety contact(s) remain the open position..
56
1 0
\ R
R Reset Device
Snap action:
B Snap
Dependent (slow) action:
L .......
Casing
• mmwidewith standardized dimensions corresponding
to EN50047
Casing fixing
• screws inthetop part
Block contacts
• Contact configuration: N.....O.....Limit Switches with Latch and Manual Reset
Plastic Casing IP65 and Metal Casing IP66 Width
Applications
Easy use, the lim itches safety applications ith latch and anual reset ffe cific qualities:
• Visible operation (fault memorisation).." contact(s)...........
• Immunity electromagnetic disturbances....
Return the initial operating state takes place voluntary action the reset button....
LS
codes
1SBC141157CG2G2
...
Limit switches with latch and manual reset comply with the requirements standard 81-1: safety rules for the construction and installations
of electric lifts...5 cable gland
• 1(LS31P/M) cable inlet for cable gland
• 1(LS32P/M) cable inlet for ISO cable gland
• 1(LS33P/M) cable inlet for ISO20 cable gland
• 1(LS35P) cable inlet 1/2" plastic adaptor
• 1(LS35M) cable inlet for 1/2" cable gland
Suitable for conduit connection only with use adaptor
sleeve optionally provided manufacturer (on request)........
LS3...
• Positive opening operation @
• Snap dependent action
• The contacts are electrically separated
Connecting terminals
• M3....... 55and ..P................." normally closed contact(s) (symbol ).. N......-R (metal casing, width) limit switches, which are made zinc alloy (zamack), have degree protection IP66.....C..........O..
They comply with the requirements European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform Eu
ropean and international standards...............
Assembly using4 screws for LS3.....M........-R
One piece sealing gasket ensuretightness
„
Electrical connection:
• 1(LS30P/M) cable inlet for 13......M.....P.............. 1
2
1cable inlet M20x 1........P......
Limit switches with latch and manual reset are equipped with N...5 for ISO20cable gland .....
1cable inlet for 13...
-------------------------- Blue manual reset button
— -
Cover
• Closed using 3screwfor LS3.................M.5 (+,-) pozidriv screw
(Screw headwith captive cable clamp)
A variety operating head options:
• Plain plunger
• Roller plunger
• Roller lever adjustable not, etc..
• Contact blocks with positive opening operation the "N...Zb Non-overlapping late make
C .. contact blocks with positive opening operation the
"N.5 cable gland.....C.-R (plastic casing, width) limit switches with latch and manual reset, which are made fibreglass reinforced UL-V0 thermoplastic
material, offer double insulation and degree protection IP65.
• Capability for strong current switching (conventional thermal current A).Zb Overlapping early make
Operating heads: (see panorama)
11 ...C. 1N.....
Assembly using4 screws for LS3...
Type Example LLLSJ
L I
S G
Casing width: mm.... N......
These cific features ake the lim itches ideal detection and onitoring lts hoisting achines, ctric lifts, freig t
elevators, escalators, conveyor belts, etc... 74, 78....
• Electrically separated contacts......... S
Plastic casing....
Metal casing .C........C.. After actuating the control device and overshooting the latching point, the N................Monly)
• M3....5 (+,-) posidriv screw
(Screw head with captive cable clamp)
• Marking conformto IEC60947-1, IEC60947-5-1,
EN50005 and EN50013 standards
Terminal for protective conductor placed nearthe
cable inlet and marked: (LS3.....C...... N.Slow/ Simultaneous
D ..... 3
0
1cable inlet for cable gland...... this application they detect monitor: cabin overtravel, cabin speed means speed limiting device, energisation the
parachute block detection excessive speed with respect the set-point value, etc..... 3
1cable inlet 1/2" NPT plastic adaptor (LS35P) 1/2" NPTfor cable gland
(LS35M) ....-R
• Closed using screws for LS3...
......
• Precision operating positions (consistency)..
Description
LS3...C.
