PHOTO	Description	Contact	Type	Color	Contour
	Twist Release
	Twist Release
	Twist Release
	Pull Release
	Key Release
	Mushroom button Momentary
	Mushroom button Momentary

Explanation of Type Designation

Explanation-of-Type-Designation

LA139A Series

Emergency stop Pushbutton(Twist Release ∅30)

Emergency stop Pushbutton(Twist Release ∅40)

Emergency stop Pushbutton(Twist Release ∅60)

Emergency stop Pushbutton(Key Release ∅40)

Emergency stop Pushbutton(Pull Release ∅40)

2 = Black

4 = Rad

1=1NO

2=1NC

3=2NO

4=2NC

5=1NO+1NC

Feature:

Installed diameter 22 mm
Protection grade: IP40/IP65/IP66
Solid, reliable and 3, 000,000 mechanical life， 500，000 electrical life
50,000 hours working life of the LED indicator
Normally open and normally closed contact groups are independent of each other and can be combined on demａnd for easy replacement
BA9S lamp is adopted for button and signal lamp, and different lamp sources can be selected as required

Mode and Meaning

Mode-and-Meaning

B:Metal Series

E:Plastic Series

A : Flush Pushbutton

L :Projecting Pushbutton

p:Pushbutton (Cover)

W: Pushbutton (Illuminated)

D: Selector Switch(Short-handle)

J : Selector Switch(Short-handle)

G:Key-operated

E :Contact Block

Z: Contact Block+Holder

B : Pushbutton,Mushroom(

C : Pushbutton,Mushroom(cp40）

R : Pushbutton,Mushroom(cD60)

S4: Emergency Stop Pushbutton
(Twist Release, 030)

S5:Emergency Stop Pushbutton
(Twist Release,

S6: Emergency Stop Pushbutton
(Twist Release, 60)

T :Emergency Stop Pushbutton
(Pull Release)

V:Pilot Light

Colour

1:White

2:Black

3:Green

4: Red

5:Yellow

6:Blue

Selector Switch

BD BJ BG

2 :2- position (Maintained)

3:3- position (Maintained)

4:2- position (Momentary,R to L)

5:3- position (Momentary,R to C LtoC)

6:3-position (Momentary,R to C）

7:3-position (Momentary,LtoC)

Derivative product

BA 3 :BL With Mark (BA,BL0nly)

Contact Block

1 : 1NO

2 : 1NC

3 : 2NO

4 : 2NC

5: 1N0+1NC

Working Environment

Working environment temperature ：-25~+70°C
Storage temperature ：-40~+70°C
Class of pollution ：3
Protection grade: IP40/IP65/IP66
Limit height:≤2000m
Standard
EN 60947-1,GB14048.5

Main Technical Data

Rated insulation voltage ：600V
Rated thermal current：10A
Switch rating ：AC-15 Ue:380V/250V Je=4.5A
DC-13 Ue:220V/110V ,le = 0.6A
Contact resistance ：≤50mA
Recommended torque：0.9Nm
Connectable area：min1 x0.5mm²,Max2x1.5mm²or1x2.5mm²
Mechanical life：Pushbutton≥ 300 x 104times;
Selector Switch≥ 1004times;
Emergency Stop Pushbutton≥ 30 x 104times
Electrical life：≥ 30x104times
Limit voltage(lamp)：0.8Ue≤U≤1.15Ue

Feature

Comfortable finger press position and

toggle switch

Function identifying

Automatic grounding

Anti finger electric shock design

Whole series with model number LA139A

Push button head assembing with terminal base

The push button head is automatically kept in the

open hole

Twist the button head to a certain angle, and then

lock with the contacted base

Fixed with 2 metal screw

Quake proof

Automatic grouding

No need to loose the screw first with

the open-style connect part

Electrical function

Can install 6 pairs connect unit at most

Chrome plated metal head and installed

base

Shockproof screw terminals

Soild, reliable and 3,000,000 mechanical

life 50,000 hours working life of the LED

indicator

	Protection degree： IP65 Easy to install, and the final form decided by you

Installation opening diagram

（thickness 1-6mm）

Protection degree:IP65

The installation of the button head;

The back part fixed by screw

The minimum surface of the plate

The most shallow of

The installed depth

The thickness of LA139A series inatalled plated is 1-5mm

The connected bass is cassette fixed

Do not need any tool
Fast and firm

Complete symbol-making function symbol on the button according your special requiment.	The transparent and ring form scale plate

Different choice
Size
Shape
color
Writing

Customizable as needed

Constitute with enclosure

　　Since its establishment, ANU ELECTRIC CO., LTD, always devoted to providing services for industrial automatic control systems, is a famous and professional enterprise in the respect of designing, developing, manufacturing and selling the pushbuttons, signal lamps, our register brand “ANU” comes from Chinese spelling: “anniu”, for many years, our products were widely sold to each province in China, and exported to Southeast countries, Africa, Europe and America.Main product, pushbutton, signal lamps have attested CCC, CE ROHS,TUV certificates, green product, energy saving, safety and reliability, the products are widely used in power industry, mechanical field, energy field, communication, aviation, transportation, metallurgy, petrochemical, textile, marine and etc.To be sure, our high quality product, first class service, competitive price are the reasons for your choice!