© Panasonic Corporation 2019
1
industrial.panasonic.com/ac/e/
AECTB18E 201903
2019.03
BASIC CHARACTERISTICS
FEATURES
AHF2 (TiP)
Switches
Small, Highly reliable
Tilt Detection Switches
Containing a Photo Sensor
• Non-contact type switch containing a
photo sensor
• The contact form is equivalent to
SPST-NC, which satises the PL Act.
• The internal sphere can be used over
an operation angle of 360 degrees in
the circumferential direction.
• There are three standard terminal
types
PRODUCT TYPES
■ For Ta = 25°C and applicable circuit conditions
TYPICAL APPLICATIONS
• Fan heaters
• Humidifer
• Air purication system
Mounting direction Vertical mounting Horizontal mounting Reverse mounting
Part No. AHF21 AHF22 AHF23
PC board mounting condition
Note: Standard Packaging: Tube 50 pcs.
1) Operation characteristics
(Operation speed 6 degrees/second)
• Operation angle
(Output: VOL → VOH):
25 to 60 degrees
• Return angle
(Output: VOH → VOL):
Min. 20 degrees
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2) Output (VO) characteristics (The sphere must be stationary.)
• VOL (photo transistor ON): Max. 1.0 V (horizontal)
• VOH (photo transistor OFF): Min. 4.0 V (inclined at an angle of
at least 60 degrees)
Note: Output characteristics are the values of the applied circuit conditions, below.
Also, the microcomputer input terminals actually used use the following
voltages.
Low level input terminal: 1.5 V or less
High level input terminal: 3.5 V or higher
Please use with a detection method to prevent malfunction.
Refer to the “Preventing a malfunction” of “CAUTIONS FOR USE”.
CONTACT FORM
SPST-NC (The photo transistor is ON when the sensor is being
used.)
INTERNAL AND APPLICABLE CIRCUIT
• VCC = 5 V
• R2 = 100 kΩ
• Forward current, IF, of the LED: 19 mA (VCC = 5 V, R1 = 200 Ω)
• Forward voltage, VF, of the LED: Typ = 1.2 V
Please set the power
supply voltage (VCC)
and circuit resistance
(R1 and R2) to within ±5%.
Terminal No. 1
Terminal No. 4
Tip switch
Terminal No. 2
Terminal No. 3
VCC
VO
R2
R1
IF
(VCC)
Automation Controls Catalog
AHF2 (TiP) Fall Detection Switches
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/
2
© Panasonic Corporation 2019
AECTB18E 201903
SPECIFICATIONS
■ Absolute maximum rating
Ta = 25°C
Item Symbol Rating Unit
Input side
Infrared light emitting diode
(between terminal No.1 and No.2)
Forward Current IF50 mA
Reverse Voltage VR5 V
Power Dissipation PO75 mW
Output side
Phototransistor
(between terminal No.3 and No.4)
Collector-Emitter Voltage VCEO 30 V
Emitter-Collector Voltage VECO 3 V
Collector Current IC20 mA
Collector Power Dissipation PC50 mW
■ Characteristics
Item Specicaitons
Electrical and mechanical expected life Min. 105 (Using the applicable circuit)
Switching frequency: 6 cpm;
Opening and closing position: 0 degrees ↔ 90 degrees
(The internal shpere must be stationary for at least 500
ms at angles of 0 and 90 degrees respectively.)
Vibration resistance 10 to 400 Hz acceleration 2.9 m/s2 applied for 7 days
5 to 10 Hz at single amplitude of 5 mm, 5×105 cycles
Shock resistance 588 m/s2 applied 3 times in each of 6 directions
Terminal strength Min. 9.8 N (each direction) Modication of a terminal is expected from a judgment
Dropping individual part Three times from height of 100 cm
High temperature, high humidity storage ability Leave for 500 hours at 85°C and 85% RH (no condensing)
High temperature storage ability Leave for 500 hours at 85°C
Low temperature storage ability Leave for 500 hours at –25°C (no freezing)
Shock and heat resistance Subject to 100 cycles each consisting of 30 minutes at –25°C and 30 minutes at 85°C.
Resistance to hydrogen sulde Leave for 500 hours in an atmosphere containing 3 ppm of hydrogen sulde at 40°C and 75% RH.
Resistance to sulfur dioxide gas Leave for 500 hours in an atmosphere containing 10 ppm of sulfur dioxide at 40°C and 95% RH
Resistance to ammonia gas Leave for 96 hours in an atmosphere containing 3% of ammonia gas at normal temperature and humidity.
Resistance to dust Mix with 2 kg/m3 talcum powder or y ash and leave to stand for 8 hours
Ambient temperature –20 to +80°C (no freezing and condensing)
Unit weight Approx. 1 g
Protection grade IP40
Notes: 1. Without any indications, specications are measured at following conditions
Temperature: 15 to 35°C, Humidity: 25 to 85% RH, Atmospheric pressure: 86 to 106 kpa.
2. The evaluation criteria for performance are as follows:
Basic characteristics – Ta = 25°C and applicable circuit conditions
1) Operation characteristics (operation speed 6 degrees/sec.)
• Operation angle (Output: VOL → VOH): 25 to 60 degrees
• Return angle (Output: VOH → VOL): 20 degrees min.
2) Output (VO) characteristics (The sphere must be stationary.)
• VOL (photo transistor ON): Max. 1.2 V (horizontal)
• VOH (photo transistor OFF): Min. 3.8 V (inclined at an angle of at least 60 degrees)
DIMENSIONS
The CAD data of the products with a CAD Data mark can be downloaded from https://industrial.panasonic.com/ac/e/
CAD Data
■ Horizontal mounting type
(Unit: mm) General tolerance: ±0.4
External dimensions PC board pattern (Bottom view)
Terminal No. 1
(LED: Anode)
Terminal No. 4
(Photo transistor: Emitter)
Horizontal
datum line
Horizontal
datum line
Terminal No. 3
(Photo transistor: Collector)
Terminal No. 2
(LED: Cathode)
6.55
1.75
9.3
3.7
0.9
4.0 3.1
5.1
9.5
3.0
2.6
9.5 dia.
C0.3 C0.3
7.9
9.5
11.5
Terminal No. 1
(LED: Anode) Terminal No. 2
(LED: Cathode)
Terminal No. 4
(Photo transistor: Emitter)
1.3 dia.
Terminal No. 3
(Photo transistor:
Collector)
3.1±0.1
11.9±0.1
5.1±0.1
AHF2 (TiP) Fall Detection Switches
3
Panasonic Corporation Electromechanical Control Business Division
industrial.panasonic.com/ac/e/ © Panasonic Corporation 2019
AECTB18E 201903
CAD Data
■ Vertical mounting type
External dimensions PC board pattern (Bottom view)
5.1±0.4 0.9
2.6
3.1±0.4
Terminal No. 1 Terminal No. 2
Terminal No. 4 Terminal No. 3
11.5±0.5 Terminal No. 4
(Photo transistor: Emitter)
Terminal No. 2
(LED: Cathode)
Terminal No. 3
(Photo transistor:
Collector)
Terminal No. 1
(LED: Anode)
5.1±0.1
11.9±0.1
3.1±0.1
1.3 dia.
CAD Data
■ Reverse mounting type
External dimensions PC board pattern (Bottom view)
Terminal No. 4
(Photo transistor: Emitter)
Terminal No. 2
(LED: Cathode)
Terminal No. 3
(Photo transistor: Collector)
Terminal No. 1
(LED: Anode)
11.9±0.1
3.1±0.1 5.1±0.1
1.3 dia.
CAUTIONS FOR USE
■ Handling
As indicated on the previous page, the absolute maximum rating
of the built-in photo-interrupter is 25°C.
In the enent that a voltage or current that exceeds the maximum
rating is applied to, or passed between the terminals, the
photointerrupter
will no longer function normally. In such a case, do
not reuse the photo-interrupter but discard it.
Be careful not to apply an excessively large load to the terminals
because this may damage the photo-interrupter.
■ Soldering
Perform soldering in less than 3 seconds with maximum 350°C
iron. Care should be taken not to apply force to the terminals
during soldering. We recommend a soldering iron with
temperature adjustment in order to prevent poor quality
soldering.
Please consult us if you intend to use a soldering iron of 60 W or
higher.
■ Environment
This product is a non-contact type tip detection switch containing
a photo-interrupter.
It is intended for installation in equipment. Because of the nature
of a semiconductor, if this product is used continuously for a long
period in a high temperature, low temperature and/or humid
environment, according to the optic quantities decrease of
luminescent diode output characteristics may be signicantly
a󰀨ected. In such a case, take suitable measures, such as
inserting a comparator at the output side, to provide a greater
degree of margin with respect to change in the output
characteristics, and thereby improve the reliability of the product.
■ Preventing a malfunction
The TiP sensor uses an internal sphere, hence chattering occurs
if it is subjected to vibration or shock. To prevent chattering,
continuously read pulses of 30 ms max. using a microprocessor,
and set the microprocessor so that the switch goes L (ON) or H
(OFF) if the output level exceeds 500 ms continuously. Also, take
steps to keep induction and RF noise away from the sensor.
The switch should be mounted keeping away from the vibration
generator such as motor. Fix the PC board rmly in order to
prevent resonance with the vibration generator, or the contact
chattering of a switch may occur by the movement of a ball
inside.
The allowable vibration level which the chattering does not
occur would be less than 2.94m/s2 at 10 to 400Hz. (The range
260 to 320Hz may have a resonance point and the level should
be less than 0.98m/s2.)
■ Others
1) Depending on the circuitry and the environmental conditions,
solder migration may occur and short a circuit. Please conrm
that the insulation distance is large enough in the actual
application.
2) To prevent a malfunction, the switch should be kept away from
the direct sunlight and any other light sources.
3) The noises caused by electrostatics, surge voltage and
inductives may break the photo-interruptor.
4) The reow soldering and cleaning are not allowed.
5) The switch should be mounted with the tolerance ±3 degree.
■ Conrmations in the actual use.
Each items in this spec sheet was tested and conrmed
independently at a certain duration. To get a higher reliability of
the equipment, please conrm the switch quality with the actual
load and environmental conditions before using.
Tip switch
Max. 30 ms
continuous H for 500 ms or more
Judgement of switch OFF state
OFF (VOH)
ON (VOL)
Terminal No.1
Terminal No.4
Terminal No.2
Terminal No.3 5.1±0.5
3.1±0.5
11.5±0.7 2.6 0.9
11.9
Technical Terminology & Cautions for Use
AECTB36E 201811-T
(Detection Switches)
TECHNICAL TERMINOLOGY
Technical Terminology & Cautions for Use
■Detection Switches
A compact switch equipped with an enclosed micro-gap snap-
action contact mechanism that makes a specified motion with a
specified force to open/close a circuit, and an actuator outside
the enclosure (hereinafter referred to as the switch)
■Actuator
A part of the switch that transmits the received external force to
an internal spring mechanism to move the movable contact so
that the switch can be opened and closed
■Actuator stopper
A part of the switch to limit the actuator movement in the switch
operation direction
■Rated values
Values indicating the characteristics and performance guarantee
standards of the snap-action switches. The rated current and
rated voltage, for instance, assume specific conditions (type of
load, current, voltage, frequency, etc.).
■Mechanical life
The service life when operated at a preset operating frequency
without passing electricity through the contacts. (The life test is
performed at a switching frequency of 60 times/minute and
operating speed of 100 mm/second at the regular cam.)
■Electrical life
The service life when the rated load is connected to the contact
and switching operations are performed. (The life test is
performed at a switching frequency of 20 times/minute and
operating speed of 100 mm/second at the regular cam.)
■Contact form
This refers to the
components
determining the type
of application which
make up the electrical
input/output circuits in
the contact.
■Insulation resistance
Resistance between non-continuous terminals, each terminal
and other exposed metal parts and between each terminal and
ground.
■Dielectric
Threshold limit value that a high voltage can be applied to a
predetermined measuring location for one minute without
causing damage to the insulation.
■Contact resistance
This indicates the electrical resistance at the contact part.
Generally, this resistance includes the conductor resistance of
the spring and terminal portions.
■ Vibration resistance
Malfunction vibration ... Vibration range where a closed contact
does not open for longer than a specified time due to vibrations
during use of the snap-action switches.
■Shock resistance
Shock durability ... Shock range where the mechanical shocks
received during snap-action switches transport and installation
do not damage the parts or harm the operating characteristics.
Malfunction shock ... Shock range where a closed contact does
not open for longer than a specified time due to shocks during
use of the snap-action switches.
ー 4 ー
Technical Terminology & Cautions for Use
AECTB36E 201811-T
OPERATING CHARACTERISTIC
TECHNICAL NOTES ON MECHANICAL CHARACTERISTICS
■Definition of operating characteristic
The main terminological illustrations and
meanings which are used with snap-
action switches are as follows.
Center of mounting holes
FP
OF RF
TT
MD
OT
TTP
OP
PT TF
RP
Classification Terminology Symbol Unit
Varying
display
method
Starting current
Force
Operating
Force OF N Max.
The force required to cause contact snap-action. It
is expressed terms of force applied to the the
actuator.
Release
Force RF N Min.
The force to be applied to the the actuator at the
moment contact snaps back from operated
position to total travel position.
Totaltravel
Force TF N Force applied to an actuator required to move from
an operating position to a total travel position
Movement
Pretravel PT mm,
degree Max. Distance or agree of the actuator movement from
free position to operating position.
Overtravel OT mm,
degree Min.
The distance or degree which the actuator is
permitted to travel after actuation without any
damage to the switching mechanism.
Movement
Differential MD mm,
degree Max. The distance or degree from operating position to
release position of the actuator.
Totaltravel TT mm,
degree
The migration length or the move angle from the
free position to total travel position of actuator
Position
Free
Position FP mm,
degree
Position of the actuator when no force is applied
to.
Operating
Position OP mm,
degree ±The position of the actuator when the traveling
contacts snaps with the fixed contact.
Release
Position RP mm,
degree
The position of the actuator when the traveling
contact snaps back from operating position to its
original position.
Total travel
Position TTP mm,
degree
The stopping position of the actuator after total
travel.
■Actuation Force and Stroke
Adequate stroke setting is the key to high reliability. It is also
important that adequate contact force be ’maintained to ensure
high reliability. For a normally closed (NC) circuit, the driving
mechanism should be set so that the actuator is normally in the
free position. For a normally open (NO) circuit, the actuator
should be pressed to 70% to 100% of the specified stroke to
absorb possible errors.
If the stroke is set too close to the operating point (OP), this may
cause unstable contact, and in the worst case may cause
actuator damage due to inertia of the drive mechanism. It is
advisable that the stroke be adjusted with the mounting plate or
driving mechanism.
The figure at right
shows a typical
example of activation
and contact forces
varying with stroke.
In the vicinity of the
OP and RP, the
contact force is
diminished, causing
chatter and contact
bounce immediately
before or after
reversal. For this
reason, use the
switch while giving
due consideration to
this. This also causes
the snap action
switch to be sensitive
to vibration or shock.
■Changes in Operating Characteristics
Exercise design care so that malfunctions will not occur if the
operating characteristics vary by as much as 20% from, rated
values.
<Example>
In the OF max. 0.98N specification for FS snap-action switches,
the allowable max. is 0.98 N × (100%+20%) = 1.18 N
In the RF min. 0.15 N min. specification
the allowable min. 0.15 N × (100%–20%) = 0.12 N
■Mechanical Conditions for Type Selection
Actuator type should be selected according to activation
method, activation speed, activation rate, and activation
frequency.
1) An extremely slow activation speed may cause unstable
contact transfer, possibly resulting in contact failures or contact
fusion.
2) An extremely high activation speed may cause damage to
contacts or contact response failure.
■Driving Mechanism
Use of a driving mechanism which will cause physical impact to
the actuator should be avoided.
<Example>
Bad Good
OF
RF
PT
NC
On FP
On reversal
On reversal
On OTP
NO
Stroke
Stroke
MD OT
FP RP OP TTP
Contact force Operating force
ー 5 ー
Technical Terminology & Cautions for Use
AECTB36E 201811-T
TECHNICAL NOTES ON ELECTRICAL CHARACTERISTICS
CAUTIONS IN A CIRCUIT
1) The snap-action switch is designed for AC operations. While it
has small contact gaps and no arc absorber, it may be used for
low-capacity DC operations.
Please refer to the rating of each products
2) For applications with very small switching voltage or current,
choose the low-level load type (Au contact).
3) When selecting a contact type of a snap-action switch to be
used for low-level load switching, the following should be noted.
Silver contacts’ surfaces are prone to be oxidized and form a
sulfide film. The switch operates with no problems at the
beginning of use. However, as the contact surfaces develop films
with time, the film may not be broken by the switching operation,
causing a conduction failure. Therefore, please choose the Au
contact type for switching a load of 0.1 A or below.
4) Application to Electronic Circuits
• The snap-action switch contacts can sustain bounce or chatter
when closed. Bounce or chatter can cause noise or pulse count
errors when the snap action switch is used in electronic circuits.
• If contact bounce or chatter poses problems in the vicinity of
the OP and RP, use a suitable absorption network, such as a C/
R network.
5) Check the surge current, normal current and surge duration.
6) Contact resistance given in performance specifications is
measured with a voltage drop method using 6 to 8 V DC, 1 A
(except for low-level load type). Contact resistance across COM
and NC terminals is measured in the free position, while contact
resistance across COM and NO terminals is measured in the
total travel position.
7) To prevent contact welding failure, be sure to use a serial
resistance for each capacitive load.
8) If snap-action switch operation is synchronized with the AC
supply phase, this may cause: shortened electrical life, contact
fusion failure, contact transfer, or other reliability problems.
Small current and voltage application range (Au contact)
500
100
50
5
2
14 8 12 16 20 24
10
DC voltage (VDC)
Current (mA)
1) Contact protection is recommended when snap-action
switches are used in an inductive load circuit.
2) Do not connect the
contacts on individual
switches to different
type or different poles of
the power supply.
Examples of power
supply connections
(connection to different
poles)
Example of wrong
power supply
connection (connection
to different poles of
power supply)
This may lead to mixed
DC and AC.
3) Avoid circuits which
apply voltage between
contacts. (This may lead
to mixed deposition.)
Circuit diagram Cautions for use
Contact for snap-action switch (1) r = more than 10 Ω
(2) In an AC circuit
Impedance of R is to be slightly smaller
than impedance of r and c.
Contact for snap-action switch Can be used for both AC and DC.
Impedance of r is nearly equal to
impedance of R.
C: 0.1 μF
Contact for snap-action switch (1) For DC circuits only.
Contact for snap-action switch Can be used for both AC and DC.
rc R
r
cR
R
diode
ZNR
Varistor
Induction load
PL
Wrong
Solenoid load
Lamp load
PL
Right
Solenoid load
Lamp load
Load connected to same pole
L
Load
L
Load
AC
DC
Wrong
Wrong
L
100V
200V
ー 6 ー
Technical Terminology & Cautions for Use
AECTB36E 201811-T
MOUNTING STATE AND ENVIRONMENT
■Checking the insulation distance
After mounting and wiring, check the insulation distance
between terminals and the ground. If the insulation distance is
inadequate, mount insulating material between as required.
■Fastening the snap-action switch body
See the Section “CAUTIONS FOR USE” for the individual
switch.
■Position adjustment with effector
1) The effector should be positioned so that direct force is not
applied to the plunger or actuator in its free position. The
operating force to the plunger should only be applied in a
perpendicular direction.
2) Note that the use of the switch as a stopper may cause an
operational problem.
■Switch installation position
• Basically, the switch should be installed so that the object to
press the switch’s plunger or lever can press it down to 70 to
100% of OT of the switch. When determining the position, the
tolerance of OP (Operating Position) and other factors should be
taken into account.
The following describes the case where the strictest tolerance
conditions are adopted.
• Example: Hinge lever type FS switch
■Soldering precautions
For manual soldering, lay the terminals flat (horizontal with the
ground) and quickly perform the soldering operation using a
soldering iron with the appropriate heat capacity and the proper
amount of solder. Take care that the flux does not flow into the
switch interior by using a ventilation fan to discharge flux gas
and to prevent contact of the switch body with the soldering iron
tip.
Be careful not to apply force to the lead wires or the terminal
portions immediately after soldering.
The temperature setting and time conditions vary depending on
the product.
See the section “CAUTIONS FOR USE” for each product.
■Avoid using in a silicon atmosphere
Avoid using organic silicon rubber, adhesives, sealing
compounds, oil, grease, and wires in a silicon atmosphere.
■Please consult us when using under the following
conditions*:
1) Environments where hydrogen sulfide or other corrosive
gases are present.
2) Environments where gasoline, thinner or other flammable,
explosive gases are present.
3) Dusty environments (for non-seal type snap action switches).
4) The perpendicular operating speed exceeds the allowable
operating speed.
5) Switching between different poles.
6) Use in environments not in the prescribed temperature or
humidity range.
■Storage precautions
To prevent discoloration due to sulfurization of the terminals
(silver- plated), store the switches in a polyethylene bag or other
suitable airtight container.
(1) When the switch is not pressed
The object to press the lever should not be in contact with
the lever.
For this purpose, the object should be at a distance from
the switch father than the maximum FP (Free Position)
value.
FP max = OP max + PT max = 9.6 + 2.8 = 12.4 mm max
The object should be at a distance of 12.4 mm or more
from the mounting hole.
(2) Depressed position
The plunger/lever should be pressed down to 70% or
more of OT (Over Travel). Therefore, the depressed
position should be calculated based on the minimum
value of OP (Operating Position) and the 70 and 100% of
the OT value.
OP min - 70% of OT = 8.0 - 0.84 = 7.16 mm
OP min - 100% of OT = 8.0 - 1.2 = 6.80 mm
The plunger/lever should be pressed down to the position
of 6.80 to 7.16 mm from the mounting hole.
FP
OP PT
TTP OT
Reference values: OP = 8.8±0.8mm
PT = max. 2.8mm
OT = min. 1.2mm
<Examples> Soldering iron tip
Wrong Correct
ー 7 ー
Technical Terminology & Cautions for Use
AECTB36E 201811-T
■Usage, storage, and transport conditions (except
turquoise switches)
During usage, storage, or transportation, avoid locations subject
to direct sunlight and maintain normal temperature, humidity,
and pressure conditions.
The allowable specifications for environments suitable for usage,
storage, and transportation are given below.
1) Temperature: The allowable temperature range differs for
each switch, so refer to the switch’s individual specifications. In
addition, when transporting or storing switches while they are
tube packaged, there are cases when the temperature may differ
from the allowable range. In this situation, be sure to consult the
individual specifications.
2) Humidity: The allowable temperature range differs for each
switch, so refer to the switch’s individual specifications.
3) Pressure: 86 to 106 kPa
The humidity range varies with the temperature. Use within the
range indicated in the graph below.
(The allowable temperature depends on the switch.)
• Condensation will occur inside the switch if there is a sudden
change in ambient temperature when used in an atmosphere of
high temperature and high humidity. This is particularly likely to
happen when being transported by ship, so please be careful of
the atmosphere when shipping. Condensation is the
phenomenon whereby steam condenses to cause water
droplets that adhere to the switch when an atmosphere of high
temperature and humidity rapidly changes from a high to low
temperature or when the switch is quickly moved from a low
humidity location to one of high temperature and humidity.
Please be careful because condensation can cause adverse
conditions such as deterioration of insulation, coil cutoff, and
rust.
• Condensation or other moisture may freeze on the switch when
the temperatures is lower than 0°C 32°F. This causes problems
such as sticking of movable parts or operational time lags.
• The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
• Storage for extended periods of time (including transportation
periods) at high temperatures or high humidity levels or in
atmospheres with organic gases or sulfide gases may cause a
sulfide film or oxide film to form on the surfaces of the contacts
and/or it may interfere with the functions. Check out the
atmosphere in which the units are to be stored and transported.
• In terms of the packing format used, make every effort to keep
the effects of moisture, organic gases and sulfide gases to the
absolute minimum.
■ We reserve the right to modify without notice the
materials, internal components, and other parts to improve
product quality.
■Handling precautions
When handling the switches, be careful not to drop them on the
floor since this may damage them.
* Select contact sulfurization (clipping) prevention products (FS and Au-clad double
layer contacts) for use with extremely small loads or an environment-resistant
Turquoise switch.
■Others
1) Failure modes of switches include short-circuiting, open-
circuiting and temperature rises. If this switch is to be used in
equipment where safety is a prime consideration, examine the
possible effects of these failures on the equipment concerned,
and ensure safety by providing protection circuits or protection
devices. In terms of the systems involved, make provision for
redundancy in the design and take steps to achieve safety
design.
2) The ambient operating temperature (and humidity) range
quoted is the range in which the switch can be operated on a
continuous basis: it does not mean that using the switch within
the rating guarantees the durability performance and
environment withstanding performance of the switch. For details
on the performance guarantee, check the specifications of each
product concerned.
Tolerance range
(Avoid
condensation when
used at temperatures
higher than 0°C32°F)
(Avoid freezing when
used at temperatures
lower than 0°C32°F)
85
5
–40
–40 0
+32 +85
+185
Temperature, °C°F
Humidity, %R.H.
ー 8 ー
Technical Terminology & Cautions for Use
AECTB36E 201811-T
■ Types of actuators
Shape Classification Pretravel
(PT)
Overtravel
(OT)
Operating
Force
(OF)
Vibration
Shock Features
Pin plunger Small Small Large Out-
standing
Appropriate for linear short-stroke action. Pin plunger acts directly on snap
action mechanism, enabling high-precision positioning. Amount of movement
after operation is smallest among all of the actuators, however, so reliable
stopper is required.
Hinge lever Large Medium Small Possible
Little force required for operation. Appropriate for use with low-speed cams and
dogs; has large stroke.
Lever available in various shapes to fit operating unit.
Simulated roller
lever Large Medium Small Possible Tip of hinge lever is bent into a semi-circle, enabling use as a simple roller type.
Leaf lever Large Large Small Excellent Play in lever is used to assure maximum stroke. Construction provides for
space where lever is attached, for outstanding resistance to freezing.
Hinge roller lever Large Medium Small Possible
This is a hinge lever with a roller, and can be used with high-speed cams and
dogs.
The force required for pin plunger action is lighter than that of the lever, and the
stroke is longer.
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2019
AECTB18E-1 201903