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Panasonic Corporation Electromechanical Control Business Division

industrial.panasonic.com/ac/e/

Panasonic Corporation 2021

AECTB36E   202110

Technical Terminology & Cautions for Use (Detection Switches)

TECHNICAL TERMINOLOGY

Detection Switches

A compact switch equipped with an enclosed micro-gap snapaction 

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.

SPDT

SPST-N.C.

SPST-N.O.

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.

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Summary of Contents for AHF21

Page 1: ... point Basic point Output characteristics H O peration angle Operation angle Return angle Return angle Return angle Return angle Output characteristics L Output characteristics L For Ta 25 C and applicable circuit conditions 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 2 Output VO characteris...

Page 2: ...rt 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...

Page 3: ... 1 Terminal No 4 Terminal No 1 LED Anode Terminal No 2 LED Cathode Terminal No 4 Photo transistor Emitter Terminal No 3 Photo transistor Collector 3 1 0 1 11 9 0 1 5 1 0 1 φ1 3 General tolerance 0 4 Terminal No 1 Terminal No 4 Terminal No 2 Terminal No 3 2 6 11 9 11 5 0 7 5 1 0 5 3 1 0 5 0 9 Terminal No 1 LED Anode Terminal No 2 LED Cathode Terminal No 4 Photo transistor Emitter Terminal No 3 Phot...

Page 4: ...with a sealant for PC boards please make sure to evaluate and confirm that no sealant enters the inside of the unit 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 ...

Page 5: ... 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 SPDT SPST N C SPST N O Insulation resistance Resistance between non conti...

Page 6: ... 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...

Page 7: ... 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 TECHNICAL NOTES ON ELECTRICAL CHARACTERISTICS 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 e...

Page 8: ...itch 1 For DC circuits only ZNR Varistor Contact for snap action switch Induction load Can be used for both AC and DC 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 PL Wrong Solenoid load Lamp load PL Right Solenoid load Load connected to same pole Lamp load Example of ...

Page 9: ... 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 Soldering precautions For manual soldering lay the terminals flat horizontal with the ground and quickly pe...

Page 10: ...eeze 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...

Page 11: ...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 lev...

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