LA39-F

LA39-F series pushbuttons have compact structure and small volume. T...

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LA39-G

LA39-G series products cover the shortages of other products, with s...

LA39-E

LA39-E series pushbuttons are characterized by delicate design, aest...

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LA39-A

LA39 pushbuttons have novel structure, aesthetic appearance and comp...

LA39-B

LA39 pushbuttons have novel structure, aesthetic appearance and comp...

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LA39-C

LA39 pushbuttons have novel structure, aesthetic appearance and comp...

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AD16-12A

AD16-12A series indicators adopt high-brightness pure-color LED lumi...

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AD16-16A

AD16-16 series indicators adopt high-brightness pure-color LED lumin...

AD16-16B

AD16-16 series indicators adopt high-brightness pure-color LED lumin...

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AD16-16SM

AD16-16系列闪光蜂鸣器采用高亮度纯色LED发光芯片为光源,寿命长,耗能低,...

AD16-16M

AD16-16系列蜂鸣器寿命长,耗能低,体积小,重量轻,可靠性好,造型美观和制造...

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AD16-22SM

AD16-22 series flash buzzers adopt high-brightness pure-color LED lu...

AD16-22M

AD16-22 series buzzers are characterized by long service life, low e...

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AD16-30M

AD16-30 series buzzers are characterized by long service life, low e...

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LW39-10

LW39-10 series are widely used in the places with quite small instal...

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LW39-16N

LW39-16N series cam switch is a major series of products specially r...

LW39-16C

LW39-16C series cam switches are widely used in the measurement, con...

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LW39-25

LW39-25 cam switch is applicable to the places with greater capacity...

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TL-501

TL-501 series tower lampsare the optimized products based on TL-50, ...

TL-50

TL-50 series tower lamps are independently researched and developed ...

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TL-70

TL-70 series tower lampsare independently researched and developed b...

TL-701

TL-701 series tower lampsare independently researched and developed ...

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TL-90

TL-90 series tower lampsare independently researched and developed b...

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ALH-0.66 I

ALH-0.66 series current transformers have novel design, advanced com...

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ALH-0.66 II

ALH-0.66 series current transformers have novel design, advanced com...

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ALH-0.66 III

ALH-0.66 series current transformers have novel design, advanced com...

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ALH-0.66 M

ALH-0.66 series current transformers have novel design, advanced com...

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ALH-0.66 Φ

ALH-0.66 series current transformers have novel design, advanced com...

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ZY4

ZY4 series miniature control relays are independently researched and...

ZY2

ZY2 series miniature control relays are independently researched and...

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DY3

DY3 series miniature control relays are independently researched and...

DY2

DY2 series miniature control relays are independently researched and...

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XX series

The maintenance boxes are made of plastics, with such features as go...

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XM series

The maintenance boxes are made of plastics, with such features as go...

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ALS1-M

Metal products of standard specifications adopt the structure of int...

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ALS1-P

Plastic products of standard specifications adopt the structure of m...

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Online selection

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Download Center

In order to make you have a more overall understanding on APT products,we provide FAQ, product manual, instructions, certificate to download.

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Into APT

APT has been established in 1993. Today it is now a Chinese leading manufacturer of low-voltage control devices.
Brand concept come from the initial letters of three English words:Advanced (A), Perfect (P) ,Top (P).

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Contact Us

Tel:021-56553757
Adress:Room 301,No.55 Lane 777,West Guangzhong Road,Shanghai

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Distributor entrance

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LA39-B

LA39 pushbuttons have novel structure, aesthetic appearance and complete varieties, which can provide the best solutions as well as control elements with high quality, high performance and high reliability for customers of industrial automation, medical devices, electricity, machinery, communication, transportation, metallurgy, chemical industry and other industries.

Important parameters:

Rated insulation voltage: AC660V

Conventional thermal current: 10A

Electrical service life: ≥600,000 times

Rated current: for quick-action type, AC-15 220V/2.5A, 380V/1.5A, 660V/0.8A

                                                                  DC-13 24V/3.6A , 48V/1.8A, 110V/0.8A, 220V/0.4A, 440V/0.2A

                         for slow-action type, AC-15 220V/6A, 380V/4A, 660V/2A

                                                               DC-13 24V/6A , 48V/3A, 110V/1A, 220V/0.5A, 440V/0.25A


  • Product features
  • Technical parameters
  • Plastic actuation head is economic and beautiful, especially suitable for the applications with higher requirements on double insulation or resistance to chemical corrosion. Installation hole diameter: φ 22.5mm;

    The customers can select the contact combination types as per their requirements with maximum six pairs of contacts. The leaf spring type actuation mechanism is adopted with the contact self-cleaning function and reliable contact;

    Complete specifications, including reset buttons, self-locking buttons, illuminated buttons, mushroom buttons, knobs, key buttons and emergency stop buttons etc.;

    Five types of installation methods: installation with the inclined screws to prevent looseness, installation with the straight screws to save the installation space, simple installation with the nuts with/without fastening screws, fast and convenient installation by one hand;

    The luminous body of the illuminated pushbutton applies pure super bright LED with the lightness above 100cd/m2;

    The mechanical service life of normal buttons is above 3,000,000 times; the continuous illumination life of the illuminated pushbuttons is above 100,000 hours;

    The symbol leaf or label frame can be provided according to the requirements of the operation instructions from the customers;


  • Rated insulation voltage: AC660V

    Power frequency withstand voltage: AC1890V 50Hz .5s

    Conventional thermal current: 10A

    Mechanical service life: 3,000,000 times for normal buttons and mushroom buttons

                                               300,000 times for knobs and two-position buttons

                                               100,000 times for self-locking buttons

                                               50,000 times for key buttons and emergency stop buttons

    Electrical service life: ≥600,000 times

    Ambient temperature: -2555

    Storage temperature: -3070

    Action frequency: 1,200 times/hour

    Product certification: CCC, CE, RoHS

    Compliance standards: IEC 60947 / GB 14048.5

    Protection class: IP40;

    Altitude of installation place: not more than 2,000m


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