Základní přehled polohových spínačů ...
Poznámky redaktora
........
• Contact blocks with positive opening operation the "N....C..........." contact(s)....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.
LS
codes
1SBC141157CG2G2
......O.
These cific features ake the lim itches ideal detection and onitoring lts hoisting achines, ctric lifts, freig t
elevators, escalators, conveyor belts, etc....C....
-------------------------- Blue manual reset button
— -
Cover
• Closed using 3screwfor LS3..... safety contact(s) remain the open position.
Casing
• mmwidewith standardized dimensions corresponding
to EN50047
Casing fixing
• screws inthetop part
Block contacts
• Contact configuration: N...
56
1 0
\ R
R Reset Device
Snap action:
B Snap
Dependent (slow) action:
L .. N....... 74, 78....C......
LS3......... S
Plastic casing. 3
1cable inlet 1/2" NPT plastic adaptor (LS35P) 1/2" NPTfor cable gland
(LS35M) ...
Description
LS3.-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...
They comply with the requirements European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform Eu
ropean and international standards....
Type Example LLLSJ
L I
S G
Casing width: mm...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).
Limit switches with latch and manual reset are equipped with N................ 1
2
1cable inlet M20x 1...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)..
1cable inlet for 13...........P.............P........-R (metal casing, width) limit switches, which are made zinc alloy (zamack), have degree protection IP66....M.... contact blocks with positive opening operation the
"N.............
• Electrically separated contacts...
Assembly using4 screws for LS3.......... N....O...-R
One piece sealing gasket ensuretightness
„
Electrical connection:
• 1(LS30P/M) cable inlet for 13.... N...
Metal casing ..Zb Overlapping early make
Operating heads: (see panorama)
11 .....C....M....
• Precision operating positions (consistency)... 55and .....Slow/ Simultaneous
D .
.
• Immunity electromagnetic disturbances........P.C.........5 (+,-) pozidriv screw
(Screw headwith captive cable clamp)
A variety operating head options:
• Plain plunger
• Roller plunger
• Roller lever adjustable not, etc.... 3
0
1cable inlet for cable gland.Zb Non-overlapping late make
C .......C......5 for ISO20cable gland ...
Return the initial operating state takes place voluntary action the reset button.............. 1N. 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...............Monly)
• M3......
• Capability for strong current switching (conventional thermal current A).. After actuating the control device and overshooting the latching point, the N.-R
• Closed using screws for LS3..5 cable gland.......
Assembly using4 screws for LS3......." normally closed contact(s) (symbol )...........M............
Limit switches with latch and manual reset comply with the requirements standard 81-1: safety rules for the construction and installations
of electric lifts...
• Positive opening operation @
• Snap dependent action
• The contacts are electrically separated
Connecting terminals
• M3.
