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