The result of the long-standing expertise of Pizzato Elettrica in the creation of position switches, the
NA, NB, NF series achieve the highest standard of flexibility and depth of range present today on the
pre-wired switches market. Configurable, adjustable, pivotable and, not least, customisable with special cables or custom wiring - these are features that today make these series unique in the European
panorama, ideal for easily providing our customers with customised switches.
Switches with connectors
The new fundamental feature of this series of prewired switches is that the switch body and the wired
connector are separated.
Using the connector the end-user can replace a product on field without having to disconnect the complete wiring.
Moreover in this way it is easier to combine products
with different cable types and lengths.
Protection degrees IP67 and IP69K
These devices are designed to be used in
the toughest environmental conditions and
they pass the IP67 immersion test acc. to
EN 60529. They can therefore be used in all
environments where maximum protection
degree of the housing is required. Due to
their special design, these devices are suitable for use in equipment
subjected to cleaning with high pressure hot water jets. These
devices meet the IP69K test requirements according to ISO 20653
(water jets with 100 bar and 80°C).
Head with variable orientation
All heads can be turned in 90° steps. The new head for swivelling
levers has been designed with compact dimensions so that it does
not protrude over the switch profile. Therefore, it is also possible to
install the switches on the wall.
Reversible levers
For switches with swivelling lever,
the lever can be fastened on
straight or reverse side maintaining the positive coupling.
In this way two different working
planes of the lever are possible.
Adjustable levers
For switches with swivelling lever, the lever can
be adjusted in 10° steps over the entire 360°
range.
The positive movement transmission is always
guaranteed thanks to the particular geometrical
coupling between the lever and the revolving
shaft as prescribed for safety applications by the
German standard BG-GS-ET-15.
10°
Positive o pening con tact blo cks with 1, 2, 3 or 4 pol es
These series of contact blocks are versatile and compact.
They have the same dimensions of the previous ver-
sions, but now it is possible to have up to 4 different
contacts which are galvanically separated and provided
with positive opening (NC contacts).
The allowed standard combinations are: 1NO+1NC,
2NC, 1NO+2NC, 2NO+2NC. Other combinations available on request.
The contact blocks have been designed so that they
keep the same pin assignment on the connector independently of the action type (slow or snap action) and
the number of contacts. In this way, the same cables
with connector can be used for units with slow action
and snap action as well.
Orientable cable outputs
The connector with cable is provided
with a cavity to allow cable bending
up to 90°.
In this way a flush wall mounting is
also possible as well as an easier
adjustment of the cable to the supporting flange.
Unidirectional heads
All switches with swivelling lever are supplied with a selector for choosing the lever operating direction.
The following operations are possible: right/left (standard factory setting), only from the right or only from the left. The operating direction
can be selected by rotating the dedicated ring mounted on all heads
of this kind.
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Increased or reduced actuating forceAdjustable levers with anti-unscrewing washer
For actuators with swivelling lever, versions with increased or reduced actuating force are available upon request, in order to have a
switch perfectly tailored for the application. For further information
contact our technical department.
Mt
Increased
force
Mt = 0,09 Nm
(E25 option
NA NB series)
Standard
force
Mt = 0,07 Nm
Reduced
force
Mt = 0,04 Nm
(E24 option)
In some applications during the
installation of the switches problems are encountered due to
the variability of the fastenings
and the folds of the structural
work.
In other cases, small finishing
adjustments are required due to
the application. Nearly all swivelling levers for switches of the NA, NB and NF series can be adjusted
in 1 mm steps along the switch length.
This feature, combined with the additional possibility of the radial
adjustment of the actuator, provides the installer with a never before
achieved flexibility in the final adjustment of the product.
All this while maintaining the positive geometric locking between
lever and swivel shaft as prescribed for safety applications.
+2 mm
-5 mm
90° redirection for actuatorsSwitch components available separately
This component highly extends the application possibilities of this product range.
All the actuators that can be attached directly to
the body of the switch can also be fastened on this
transmission, thus making feasible applications and
positioning of the switch that were previously impossible. The redirection piece can also be used in case of heads for swivelling levers. Although possible, the use of multiple transmissions in
series is not recommended.
This product series has been provided with a modular design so that
single parts can also be ordered separately. This is an asset both for
distributors and for final customers of electrical material in the procurement of spare parts as well as for custom combinations.
NA B110BB-DN2
NA B11000+VN AA0BB
VN CM11DN2
4
Reversible housing
Thanks to the shape of the fixing holes and of the switch body, as
well as the possibility of rotating the head, make this switch perfectly
symmetrical.
If a switch with cable output on the left (since the connector cannot
be rotated) is required, it is possible to rotate the complete device by
maintaining the final position of the actuator unchanged.
Extended temperature range
These devices are also available in a special
version suitable for an ambient operating
temperature range from -40ºC up to +80°C.
They can therefore be used for applications in cold stores, sterilisers
and other equipment with low temperature environments. The special materials used to produce these versions retain their characteristics even under these conditions, thereby expanding the installation
possibilities.
=
+
M12 connectors
All contact configurations are available with M12 connector both with two
contacts (with 5-pin M12 connector) as
well as 3 or 4 contacts (with 8-pin M12
connector). With exit direction below
or to the right, these make application
in narrow spaces possible, as, with the
simple rotation of the switch, the reversible housing also easily allows the exit
direction to the left. The M12 connector
is also available at the end of the cable,
whose length can be tailored to the
customer, and the cable can be bent at
90°, allowing installation on walls.
AMP connectors
Furthermore, AMP connectors for 2-contact versions
are available too. These connectors, specially developed
for the automotive industry, are immune to vibration
due to the quick coupling.
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4
NA-NB series modular metal pre-wired switches
Selection diagram for item combinations of the NA-NB series
0AA 0AB 0AC 0AE 0BB 0BE 0BG 0CB 0CH
Short plungerPlunger Long plungerPlunger
with external
gasket
Roller plunger Roller plunger
with external
gasket
Roller plunger
with external
gasket
Roller lever Angled lever
with roller
ACTUATORS
NANB
0AB-W5 0BB-H0W5 0BB-W5
Plunger Roller plunger Roller plunger
0HB-W5
Flexible rod
with plastic tip
0HE-W5
Flexible rod
0HH-W5
Flexible rod
with needle
2KA 2KB 2KC 2KD 2KE 2KF 2KG 2KH 2KP
Plastic
swivelling
lever, straight,
with roller
Ø 18 mm
Metal
swivelling
lever, straight,
adjustable,
with roller
Ø 18 mm
Metal
swivelling
lever, profiled,
adjustable,
with roller
Ø 14 mm
Metal
swivelling
lever, profiled,
adjustable,
with roller
Ø 14 mm
Metal
swivelling
lever, profiled,
adjustable,
with roller
Ø 20 mm
Metal
swivelling
lever, straight,
adjustable,
with roller
Ø 20 mm
Metal
swivelling
lever, profiled,
adjustable,
with roller
Ø 20 mm
Metal
swivelling
lever, profiled,
adjustable,
with roller
Ø 20 mm
adjustment and
roller Ø 20 mm
CONTACT
BLOCKS
CONNECTORS
B11 G11 H11 L11
1NO+1NC
snap action
1NO+1NC
slow action
1NO+1NC
slow action,
make before
break
Metal
swivelling
lever, straight,
with extended
1NO+1NC
slow action,
close
115
DMKSMKDM0.2
M12 connector,
right
M12 connector,
bottom
SAK
AMP connector,
bottom
CABLES
Connector with cable
PVC cable IEC 60332-1 (standard)
DN
PVC cable CEI 20-22 II
DG
PUR cable, halogen free
DH
Rail cable EN 50306-4
DR
product options
Sold separately as accessory
Cable and M12
connector
B02 G02
2NC
snap action
2NC
slow action
B12 G12 H12 L12
1NO+2NC
snap action
1NO+2NC
slow action
1NO+2NC
slow action,
make before
break
slow action,
B22 G22 H22 L22
2NO+2NC
snap action
2NO+2NC
slow action
2NO+2NC
slow action,
make before
break
General Catalogue Detection 2017-2018
slow action,
1NO+2NC
close
2NO+2NC
close
4
0CP 0CV 0EB 0EE 0FB 0GB
Unidirectional
roller lever
Adjustable angled
roller lever
Plunger with
M12 threaded
fitting
Plunger with M12
threaded fitting,
external gasket
Roller plunger
with M12
threaded fitting
Plunger with Ø
6 mm ball
0HB0HE0HH
Flexible rod with
plastic tip
Flexible
rod
Flexible rod
with needle
SEPARATE
ACTUATORS
See page 135
2LB2LE2LH2LL
Metal swivelling
lever with
stainless steel rod
3 x 3 x 125 mm,
adjustable
Metal swivelling
lever with
stainless steel rod
Ø 3 x 125 mm,
adjustable
Metal swivelling
lever with
glass fibre rod
Ø 6 x 200 mm,
adjustable
Metal swivelling
lever with
flexible rod,
adjustable
2LP
Metal swivelling
lever with
porcelain roll,
adjustable
200
Metal head
for swivelling
lever actuators
Code structure Attention! The feasibility of a code number does not mean the effective availability of a product. Please contact our sales office.
cable, length 5 m (other cable lengths available on request)
K
integrated connector
Cable or connector type
N
PVC cable IEC 60332-1 (standard)
G
PVC cable CEI 20-22 II
H
PUR cable, halogen free
R
Rail cable EN 50306-4
M
M12 connector
A
AMP Superseal 1.5 connector
Redirection
without redirection
W5
90° redirection
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4
NA-NB series modular metal pre-wired switches
Main features
•Metal housing, right or bottom cable output
•Protection degrees IP67 and IP69K
•4 types of integrated cable available
•Versions with M12 connector suitable for
safety applications
•Versions with AMP connector
•14 contact blocks available
•36 actuators available
Technical data
Housing
Metal housing, baked with UV resistant powder coating.
Versions with integrated cable, standard length 2 m, other lengths 0.5 … 10 m on
request.
Versions with integrated M12 connector.
Versions with 0.2 m cable length and M12 connector, other lengths 0.1 … 3 m
available on request.
Protection degree: IP67 acc. to EN 60529
IP69K acc. to ISO 20653
(Protect the cables from direct high-pressure and
high-temperature jets)
Corrosion resistance in saline mist: ≥ 300 hours in NSS acc. to ISO 9227
General data
Ambient temperature for switches without cable: -25°C … + 80°C (standard)
-40°C … + 80°C (extended T6)
Ambient temperature for switches with cable:See table on page 118
Max. actuation frequency: 3600 operating cycles/hour
Mechanical endurance: 20 million operating cycles
Mounting position:any
Safety parameter B
Mechanical interlock, not coded:type 1 acc. to EN ISO 14119
Vibration resistance
(0BB, 2KB, 2KC, 2KD actuators):
Tightening torques for installation:see page 211-222
Electrical data
Rated impulse withstand voltage (U
Conditional short circuit current:1000 A acc. to EN 60947-5-1
Pollution degree: 3
:40,000,000 for NC contacts
10D
):4 kV
imp
5 … 150 Hz (7.9 m/s2)
acc. to EN 61373 cl. 9
In compliance with standards:
IEC 60947-5-1, EN 60947-5-1, IEC 60204-1, EN 60204-1, EN ISO 14119,
EN ISO 12100, IEC 60529, EN 60529, ISO 20653, UL 508, CSA 22.2 No.14.
Compliance with the requirements of:
Low Voltage Directive 2014/35/EU, EMC Directive 2014/30/EU.
Positive contact opening in conformity with standards:
IEC 60947-5-1, EN 60947-5-1.
Installation for safety applications:
Use only switches marked with the symbol next to the product code. Always connect the safety circuit to the NC contacts (normally
closed contacts: see “Internal cable wiring” on page 118) as required by EN ISO 14119, paragraph 5.4 for specific interlock applications and
EN ISO 13849-2 tables D3 (well-tried components) and D.8 (failure exclusions) for safety applications in general. Actuate the switch at least
up to the positive opening travel shown in the travel diagrams on page 220. Actuate the switch at least with the positive opening force,
reported in brackets below each article, next to the actuating force value.
If not expressly indicated in this chapter, for correct installation and utilization of all articles see the instructions given on pages
211 to 222.
Important: Switch off the circuit voltage before disconnecting the connector from the switch. The connector is not suitable for
separation of electrical loads. According to EN 60204-1, versions with 8-pole M12 (2NO+2NC) and AMP connector can be used only in
PELV circuits.
Features approved by IMQ
Rated insulation voltage (Ui):250 Vac
Conventional free air thermal current
):
(I
th
Protection against short circuits
(fuse):
Rated impulse withstand voltage
):
(U
imp
Protection degree of the housing:IP67
MA terminals (crimped terminals)
Pollution degree: 3
Utilization category: AC15 / DC13
Operating voltage (Ue):250 Vac (50 Hz) / 24 Vdc (with connector)
Operating current (Ie): 3 A / 2 A (with connector)
Forms of the contact element: X, Y, X+Y, X+X, Y+Y, Y+Y+X, X+X+Y, X+X+Y+Y, Zb
Positive opening of contacts on contact blocks B01, B11, B02, B12, B21, B22,
G01, G11, G02, G12, G21, G22, L01, L11, L02, L12, L21, L22, H01, H11, H02,
H12, H21, H22
In compliance with standards: EN 60947-1, EN 60947-5-1 + A1:2009,
fundamental requirements of the Low Voltage Directive 2014/35/EU.
10 A (1-2 contacts) / 6 A (2-3 contacts) /
4 A (4 contacts or 5-pole M12 connector)
10 A (1-2 contacts) / 6 A (2-3 contacts) /
4 A (4 contacts or 5-pole M12 connector)type gG
4 kV
(with connector)
Features approved by UL
Utilization categories R300 pilot duty (28 VA, 125-250 Vdc)
B300 pilot duty (360 VA, 120-240 Vac) (1-2-3 cont.)
C300 pilot duty (180 VA, 120-240 Vac) (4 cont.)
Housing features type 1, 4X “indoor use only”, 12.
Housing features for the version with 1-2 contacts and type N cable
Type 1, 4X “indoor use only”
In compliance with standard: UL 508, CSA 22.2 No.14
Please contact our technical department for the list of approved products.
Please contact our technical department for the list of approved products.
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4
1
2
3
5
4 1 2 3
1-2 NC
3-4 NC
5
4
1
2
3
5
4 1 2 3
1-2 NC
3-4 NO
5
1
1
Ambient temperatures for switches with cable and electrical data
Important: Always check that the applied electric load is within the voltage and current limits defined for the connectors. See tables on page 118 and 128.
metal connectors for NA and NB housingstechnopolymer connectors for NF housings