ABB Latch key safety limit switches Catalog Page
Latch key safety limit switches
Description
Safety limit switches with small latch (key), made of
berglass reinforced UL-V0 thermoplastic material,
offer double insulation and a degree of protection
IP65. They are equipped with 1 N.C. + 1 N.O. or
2 N.C. contact blocks with dependent action and
positive opening operation of the "N.C." contact(s).
Applications
Easy to use, the limit switches with small latch
(key) offer specic qualities:
• Visible operation.
• Capability for strong current switching (conventional thermal current 10 A).
• Opening guaranteed of the "N.C." contact(s)
when the small latch is withdrawn from the limit
switch.
• Contact blocks with dependent action and positive opening operation of the "N.C." normally
closed contact(s) (symbol ).
• Electrically separated contacts (Zb shape).
• Precision on operation positions (consistency).
• Immunity to electromagnetic disturbances.
limit switches
Safety
These specic features make the limit switches
ideal for monitoring and protection of industrial
machines without inertia in which downtime is
less than access time to the dangerous area. Use
on sliding or pivoting protectors (covers, cases,
doors, grids, etc.).
• They contribute to protection of operators
working on dangerous machines, by opening
the control circuit. Withdrawal of the small latch
(key) by opening the mobile protector causes
immediate stopping of the machine drive.
• Associated with other standard limit switches
and safety switching devices, they produce
automatic control circuits meeting standard EN
954-1.
• They comply with the requirements of European
Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform to
European and international standards.
9
2 operating head options:
• Adjustable every 90° (4 x ø 3 screws with (+,-) pozidriv 1
head)
• Pivoting from 0° to 360° (1 x M3 screw with Phillips
head No. 1)
Casing
• 30 mm wide with standardised dimensions corresponding
to EN 50047
Blocks of 2 contacts
• Contact conguration: 1 N.O. + 1 N.C. or 2 N.C.
• Positive opening operation
• Contact dependent action
• Zb shape: the 2 contacts are electrically separated
Connecting terminals
• M3.5 screw with (+,-) posidriv 2 head
• Screw heads with captive cable clamps
• Marking conform to IEC 60947-1, IEC 60947-5-1,
EN 50005 and EN 50013 standards
Catalog number explanation
Example : L S 3 5 P 80 D 11 – S
Limit Switch .................................................................................LS
Casing width: 30 mm ..................................................................................... 3
Cable inlet:
1 cable inlet for Pg 13.5 cable gland ....................................................................0
1 cable inlet for Pg 11 cable gland .......................................................................1
1 x 1/2" NPT (adaptor) cable inlet ........................................................................5
Plastic casing .....................................................................................................................P
Operating heads:
Adjustable every 90° .......................................................................................................................... 80
Continuously pivoting from 0° to 360° ............................................................................................... 81
Contact types:
11 ........... 1 N.O. + 1 N.C. contacts
02 ........... 2 N.C. contacts
Snap action:
B ...........Zb Snap
Dependent (slow) action:
L ............Zb Slow / Simultaneous
D ...........Zb Non-overlapping late make
C ...........Zb Overlapping early make
7 small latch (key) options to be ordered separately:
• Right angle key (13 or 22 mm xing)
• Straight key (13 or 22 mm xing)
• Straight key or right angle key with shock absorber
• Adjustable right angle key
Casing fixing
• 2 x M4 screws in the top part
Cover
• Closure by 1 x ø 3 screw with (+,-) pozidriv 1 head
Gasket made in one part to prevent tightness breaks
Electrical connection in various options:
• 1 x Pg 13.5 cable gland for LS30P
• 1 x Pg 11 cable gland for LS31P
• 1 x 1/2" NPT adaptor delivered not mounted for LS35P
S ............Safety device
Low Voltage Products & Systems 9.73
ABB Inc. • 888-385-1221 • www.abb.us/lowvoltage 1SXU000023C0202
Safety Limit Switches with Small Latch (Key)
L0490D
Double Insulation - Plastic Casing NEMA-1 - 30 and 40 mm Width
Metal Casing NEMA-4X - 30 and 40 mm Width
Applications
Easy to use, the limit switches with small latch (key) offer specific qualities:
●Visible operation.
●Capability for strong current switching (conventional thermal current 10 A).
●Opening guaranteed of the "N.C." contact(s) when the small latch is withdrawn from the limit switch.
●Contact blocks with dependent action and positive opening operation of the "N.C." normally closed contact(s) (symbol ).
●Electrically separated contacts.
●Precision on operation positions (consistency).
●Immunity to electromagnetic disturbances.
These specific features make the limit switches ideal for monitoring and protection of industrial machines without inertia in which
down-time is less than access time to the dangerous area. Use on sliding or pivoting protectors (covers, cases, doors, grids, etc.).
●They contribute to protection of operators working on dangerous machines, by opening the control circuit. Withdrawal of the small latch (key)
by opening the mobile protector causes immediate stopping of the machine drive.
●
Associated with other standard limit switches and safety switching devices, they produce automatic control circuits meeting standard EN 954-1
●They comply with the requirements of European Directives (Low Voltage, Machines and Electromagnetic Compatibility) and are conform to
European an international standards.
Description
LS35P..-S (30 mm width) and LS45P..-S (40 mm width) safety limit switches with key, which are made of fibre-glass reinforced UL-V0 thermoplastic material, offer double insulation and a degree of protection NEMA-1.
LS35M..-S (30 mm width) safety limit switches with key, which are made of zinc alloy (zamak), have a degree of protection NEMA-4X.
LS45M..-S (40 mm width) safety limit switches with key, which are made of aluminium alloy, have a degree of protection NEMA-4X.
2 operating head options:
● Adjustable every 90° assembled using 4 x ø 3 screws
(L35P), 4 x ø 4 screws (L45P), 4 x M3 screws (L35M)
and 4 x M4 screws (L45M)
● Pivoting from 0° to 360° with 1 x M3 screw (LS35P81
or LS35M81 only)
Casing:
● 30 mm width with standardized dimensions according
to EN 50047
● 40 mm width with standardized dimensions according
to EN 50041
Block of 2 or 3 contacts
● Contact configuration: 1 N.O. + 1 N.C., 2 N.C.,
1 N.O. + 2 N.C. or 3 N.C. (LS4..P/M only)
● Positive opening operation
● Snap action (only for blocks of 2 contacts)
● Slow action
● The contacts are electricaly separated
Connecting terminals
● M3.5 (+,-) posidriv 2 screw
(Screw head with captive cable clamp)
● Marking conform to IEC 60947-1, IEC 60947-5-1,
EN 50005 and EN 50013 standards
Terminal for protective conductor placed near the
cable inlet and marked: (LS35M & LS45M only)
● M3.5 (+,–) pozidriv 2 screw
(Screw head with captive cable clamp)
7 small latch (key) options (for LS35P or LS35M) and
5 small latch (key) options (for LS45P or LS45M) to be
ordered separately:
● Right angle key (13 or 22 mm fixing)
● Straight key (13 or 22 mm fixing)
● Straight key or right angle key with shock absorber
● Adjustable right angle key
Mounting the casing:
● 2 x M4 screws in top part for 30 mm width
● 2 or 4 x M5 screws for 40 mm width
Cover
● Closed using 1 x ø 3 screw for LS35P..-S
● Closed using 3 x M3 screws for LS35M..-S
● Self clipping for LS45P..-S
● Closed using 2 x M4 screws for LS45M..-S
One piece sealing gasket to ensure tightness
Electrical connection:
● 1 (LS35P) cable inlet by 1/2" NPT plastic adaptor
● 1 (LS35M & LS45P/M) cable inlet for 1/2" NPT
cable gland
Suitable for conduit connection only with use of adaptor
sleeve optionally provided by manufacturer (on request)
.
Type Example : L S 3 5 P 8 0 D 1 1 S
L S P S
Limit Switch .................................................................................LS
Casing width: 30 mm ..................................................................................... 3
1 cable inlet by 1/2" NPT plastic adaptor (LS35P) or 1/2" NPT for cable gland
(LS35M).................................................................................................................5
Casing width: 40 mm ..................................................................................... 4
1 cable inlet for 1/2" NPT cable gland .................................................................. 5
Plastic casing..................................................................................................................... P
Metal casing ......................................................................................................................M
42
AC1300
Operating heads: (see panorama)
80 ............. Adjustable every 90°
81 ............. Continuously pivoting from 0° to 360° (LS35P & LS35M only)
S ............Safety device
Contact types:
11 ........... 1 N.O. + 1 N.C. contacts
12 ........... 1 N.O. + 2 N.C. contacts (LS45P.. or LS45M.. only)
02 ........... 2 N.C. contacts
03 ........... 3 N.C. contacts (LS45P.. or LS45M.. only)
Snap action:
B ...........Zb Snap (for 1 N.O. + 1 N.C. and 2 N.C. contacts only)
Dependent (slow) action:
L ............Slow / Simultaneous
D ...........Zb Non-overlapping late make
C ...........Zb Overlapping early make (for 1 N.O. + 1 N.C. contacts only)
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