Model Code Breakdown
| ส่วนรหัส | คำอธิบาย |
| APT | ยี่ห้อ (a low-voltage electrical brand under Siemens, formerly Shanghai Second Electric Works) |
| LA39 | Product family (APT classic pushbutton switch ชุด) |
| อี | Sub-series (桅16mm miniature pushbutton, suitable for compact panel control) |
| 11 | Contact configuration (1 เลขที่ + 1 เอ็นซี, standard contact combination) |
| เอฟ | Head shape (square flat-head pushbutton) |
| ย | Button color (สีเหลือง) |
- พารามิเตอร์ทางเทคนิคหลัก
| พารามิเตอร์ | ค่า |
| เส้นผ่านศูนย์กลางรูยึด | Φ16mm (standard miniature mounting size) |
| จัดอันดับแรงดันไฟฟ้าของฉนวน | AC 250V 50Hz |
| Thermal Current | 5ก |
| ชีวิตเครื่องกล | 1,000,000 การดำเนินงาน (standard for general pushbuttons) |
| ชีวิตไฟฟ้า | เอซี-15: 100,000 การดำเนินงาน; ดีซี-13: 50,000 การดำเนินงาน |
| อุณหภูมิแวดล้อม | -25℃~55℃ |
| Storage Temperature | -30℃~70℃ |
| ความถี่ในการทำงาน | 1200 การดำเนินงาน/ชั่วโมง |
| Protection Degree | IP40 (front side) |
| การรับรอง | ซีซีซี, ซีอี, RoHS |
- คุณสมบัติผลิตภัณฑ์ & การใช้งาน
คุณสมบัติผลิตภัณฑ์
- การออกแบบที่กะทัดรัด: ขนาดเล็ก, ideal for compact and intensive panel control
- ติดตั้งง่าย: Modular snap-in connection for convenient installation and maintenance
- Reliable Contact: Self-cleaning contacts with positive break design for stable connection
- Operation Type: Momentary (self-resetting) pushbutton, automatically returns when released
- Appearance: Square head with bright yellow color for easy identification
การใช้งานทั่วไป
Industrial automation control panels
Machine tool operation interfaces
Textile machinery control
Marine electrical systems
Power equipment signal indication
Medical equipment control
- โมเดลทางเลือก & ข้อมูลการสั่งซื้อ
Alternative Models in the Same Series
| แบบอย่าง | ความแตกต่าง |
| LA39-E11F/G | Green square pushbutton, other parameters identical |
| LA39-E11F/R | Red square pushbutton, other parameters identical |
| LA39-E11F/B | Blue square pushbutton, other parameters identical |
| LA39-E11/G | Round yellow pushbutton, different head shape |
| LA39-E11J/Y | Rectangular yellow pushbutton, different head shape |
Official Ordering Info
Standard Order No.: 101802139 (corresponds to LA39-E11F/Y)
บรรจุภัณฑ์: Individually packaged; discounts available for bulk orders
เวลานำ: Regular stock item, typically shipped within 5 days
- หมายเหตุการเลือก
- ความเข้ากันได้ในการติดตั้ง: Ensure panel cutout is Φ16mm, compatible with other 16mm series pushbuttons
- Electrical Matching: Load current ≤5A, voltage ≤250V
- Operation Mode: Momentary type; select LA39-E11TF/Y for latching function
- สิ่งแวดล้อม: Suitable for general industrial environments; higher IP rating recommended for harsh conditions
- Color Usage: Yellow typically for warning or special function indication, adjustable by application
- Brand Background
APT (formerly Shanghai Second Electric Works) was founded in 1993 and fully acquired by Siemens in 2008. It is now a professional low-voltage electrical brand under Siemens, focusing on R&D and manufacturing of pushbuttons, indicator lights, รีเลย์, ฯลฯ. As a core product line, the LA39 series is widely used in global industrial control for its high reliability, long life and complete specifications.
APT-LA39-E11F-Y is a Φ16mm miniature square yellow momentary pushbutton from Siemens APT (formerly Shanghai Second Electric Works) LA39‑E series, กับ 1 เลขที่ + 1 NC contacts.
Yellow is commonly used for warning, debugging, standby, jogging, รีเซ็ต, and intervention functions rather than main start/stop operations.
- ระบบอัตโนมัติทางอุตสาหกรรม & Control Cabinets
Fault reset and alarm acknowledgment on electrical cabinets and PLC control panels
Manual jogging, commissioning, and maintenance mode switching
Standby start, bypass control, and safety intervention
- Machine Tools & CNC Equipment
Auxiliary action jogging for lathes, milling machines, machining centers
Temporary manual control of tool changers, lubrication and cooling systems
Machine tool alarm reset and safety bypass
- Light Industry Machinery & Assembly Lines
Commissioning and fine-tuning for packaging, filling, การพิมพ์, textile machinery
Temporary jogging of conveyors and sorting equipment
Quick reset of abnormal equipment status
- เครื่องปรับอากาศ, Refrigeration, แฟนๆ & Pumps
Maintenance and commissioning for air conditioning and chiller units
Manual test and reset for fan and pump control cabinets
Auxiliary control for fire exhaust and fresh air systems
- Power Distribution & Ring Main Units
Signal reset in low-voltage switchgears, ring main units and terminal boxes
On-site manual testing of circuit breakers and contactors
Operation buttons for inspection and commissioning in power distribution rooms
- Engineering Machinery, เรือ & Vehicles
Auxiliary control in engineering machinery cabs and on-board electrical cabinets
Miniature operation buttons on ship bridges and engine control consoles
Function control for special vehicles and sanitation trucks
- ทางการแพทย์, Laboratory & Instrument Equipment
Commissioning, calibration and reset for medical devices and testing instruments
Jog control for small laboratory equipment and test benches
Instruments requiring compact installation with limited panel space
- ลิฟต์, Lifting & Logistics Equipment
Inspection jog buttons in elevator car top/pit inspection boxes
Auxiliary control for lifting platforms, freight elevators and parking systems
Temporary manual operation for sorting and lifting equipment
Suitable for all industrial control scenarios requiring Φ16mm miniature mounting space and yellow pushbuttons for warning, debugging, reset or jogging functions.
Complete List of Siemens APT Product Series (2026 Latest)
Siemens APT (formerly Shanghai Second Electric Works) is a professional brand specializing in low-voltage electrical and industrial control components. Its product portfolio covers 8 core categories: pushbuttons/indicator lights, cam switches, รีเลย์, เบรกเกอร์วงจร, warning beacons, current transformers, limit switches, and control boxes, providing a full industrial control solution from miniature components to large protection devices.
- Pushbutton Switch Series (Core Product Line)
- LA39 Series (Classic General Purpose, Φ12/16/22/30mm)
LA39-E: Φ16mm miniature pushbuttons (เช่น, LA39-E11F-Y, yellow square momentary type)
LA39-A/B/C: Φ22mm standard pushbuttons with flat, mushroom, key-operated heads
LA39-T: Illuminated pushbuttons with LED
LA39-EM: Metal pushbuttons for harsh environments
คุณสมบัติที่สำคัญ: Modular snap-in, self-cleaning contacts, positive break, ชีวิตทางกล >1,000,000 รอบ
- PB3 Series (Quick Mount, Φ22mm)
Tool-free quick installation
Multiple operator head combinations for modern control panels
Suitable for mass production and fast maintenance
- LA42 Series (กะทัดรัด, Φ16mm)
Ultra-slim profile, ประหยัดพื้นที่
Momentary/latching optional, 1NO/1NC standard
For small equipment and instruments
- LA58 Series (Heavy Duty, Φ30mm)
High mechanical strength, shock-resistant
For metallurgy, mining and harsh environments
Supports high-current loads up to 10A
- Special Function Pushbuttons
| ชุด | คุณสมบัติ | การใช้งาน |
| LA39-BT | Double pushbutton | Two-hand safety control |
| LA39-ER | Emergency stop | Emergency machine shutdown |
| LA39-K | Key-operated | Access control and locking |
| LA39-Z | Rotary knob | Mode switching and adjustment |
- Indicator Light Series
- AD16 Series (Classic General Purpose, Φ16/22/30mm)
AD16-16: Φ16mm miniature LED indicators, low power
AD16-22: Φ22mm standard indicators, high brightness, long life
AD16-30: Φ30mm large indicators for long-distance visibility
สี: สีแดง, สีเหลือง, สีเขียว, สีฟ้า, สีขาว, Orange
- AD11 Series (Flush Mount)
Flush with panel surface
For clean rooms, food processing and hygienic environments
IP65 waterproof, dustproof and moisture-proof
- AD09 Series (Micro Indicator, Φ9mm)
Ultra-small for high-density panels
Low current draw for battery-powered devices
Widely used in instruments and medical equipment
- Cam Switch Series
- LW39 Series (Universal Cam Switches)
LW39-16A: 16A thermal current, switching angles 30°/45°/90°
LW39-25A: Medium current for motor control
LW39-40A: High current for power distribution
LW39-N: For relay protection industry, ความน่าเชื่อถือสูง
การใช้งาน: Control circuit switching, power distribution, motor forward/reverse
- LW26 Series (Cam Switches)
Multi-position, complex logic control
แบบโมดูลาร์, customizable contact combinations
For automated production lines and machine tools
- LW8 Series (Miniature Cam Switches)
Compact size, ประหยัดพื้นที่
2–4 positions, 1–2 contact sets
For instruments and small equipment
- Relay Series
- SR Series (General Purpose Electromagnetic Relays)
Standard 8-pin/11-pin base, internationally compatible
Contact rating: AC250V/5A, DC24V/3A
Coil voltages: AC24V/110V/220V, DC12V/24V
For control circuit switching and signal amplification
- NR Series (Power Relays)
High contact rating: AC250V/10A, DC24V/5A
Excellent vibration resistance for automotive and high-speed lines
Low coil power consumption
- ER Series (Safety Relays)
Compliant with EN60947-5-1, for safety circuits
Positive-guided contacts for guaranteed break
For elevators, hoisting and safety-critical systems
- HR Series (รีเลย์เวลา)
Modes: on-delay, off-delay, interval delay
Timing range: 0.1s~100h, ความแม่นยำ ±5%
Digital display or knob adjustment available
- Circuit Breaker Series
- ATH Series (Miniature Circuit Breakers, 6A~63A)
Compliant with IEC60898, 6kA short-circuit breaking capacity
การเดินทางด้วยแม่เหล็กความร้อน, overload and short-circuit protection
For final distribution and control cabinet power protection
- ATZ Series (Molded Case Circuit Breakers, 16A~800A)
Modular design with expandable accessories
Optional earth leakage protection for personnel safety
For workshop distribution and large equipment protection
- ATQ Series (Isolating Switches, 100A~2500A)
กระแสไฟฟ้าที่ได้รับการจัดอันดับสูง, switchable under load
Visible break point for safe maintenance
Main switches for low-voltage distribution systems
- Other Core Product Series
- Warning Beacon Series
TL Series: Multi-layer signal beacons with audible-visual alarm
TL-50ED Series: LED source, low power, long life
การใช้งาน: Equipment status, ปลุกความผิด, safety alerts
- Current Transformer Series
ALH Series: 0.66kV low-voltage transformers, accuracy 0.2~0.5 class
ALH-K Series: Split-core type, installable without busbar disassembly
ALH-B Series: High-ratio transformers for high-current systems up to 6300A
การใช้งาน: Energy metering, การป้องกัน, power monitoring
- Limit Switch Series
ALS1 Series: Standard limit switches, IP67 protection
ALS3 Series: Slow-make type for precise positioning
ALS5 Series: Heavy-duty, high shock resistance
การใช้งาน: Machine travel control, automation positioning, elevator leveling
- Control Box Series
XKA Series: Plastic control boxes, ABS housing, shock-resistant, corrosion-resistant
XKB Series: Metal control boxes, สแตนเลส, for outdoor and harsh environments
Customization: Custom cutouts and internal layout available
- Product Certifications
Full series certified by CCC, ซีอี, RoHS
Some products with UL, CSA certifications for North American market
- Supplementary Info for LA39-E11F-Y
Full Definition: APT LA39-E series (Φ16mm), 1NO+1NC, square flat head, yellow momentary pushbutton
Standard Order No.: 101802139
Matching Indicator: AD16-16 series Φ16mm yellow indicator for integrated operation and indication
Recommended Partner: SR series relays (เช่น, SR-05DC110V) for signal amplification and control expansion
Siemens APT product series cover full industrial control scenarios, from miniature pushbuttons to large protection devices, for standard and harsh environments. The LA39 series, as APT’s classic line, is a top choice in industrial automation for its reliability and versatility.
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