Aufschlüsselung des Modellcodes
| Codesegment | Beschreibung |
| GEEIGNET | Marke (a low-voltage electrical brand under Siemens, ehemals Shanghai Second Electric Works) |
| LA39 | Product family (APT classic pushbutton switch Serie) |
| E | Unterserie (桅16mm miniature pushbutton, suitable for compact panel control) |
| 11 | Kontaktkonfiguration (1 NEIN + 1 NC, standard contact combination) |
| F | Head shape (square flat-head pushbutton) |
| Y | Button color (Gelb) |
- Technische Kernparameter
| Parameter | Wert |
| Durchmesser der Montagebohrung | Φ16mm (standard miniature mounting size) |
| Bemessungsisolationsspannung | AC 250V 50Hz |
| Thermischer Strom | 5A |
| Mechanisches Leben | 1,000,000 Operationen (standard for general pushbuttons) |
| Elektrisches Leben | AC-15: 100,000 Operationen; DC-13: 50,000 Operationen |
| Umgebungstemperatur | -25℃~55℃ |
| Lagertemperatur | -30℃~70℃ |
| Betriebsfrequenz | 1200 Operationen/Stunde |
| Schutzgrad | IP40 (Vorderseite) |
| Zertifizierungen | CCC, CE, RoHS |
- Produktmerkmale & Anwendungen
Produktmerkmale
- Kompaktes Design: Kleine Größe, ideal for compact and intensive panel control
- Einfache Installation: Modular snap-in connection for convenient installation and maintenance
- Reliable Contact: Self-cleaning contacts with positive break design for stable connection
- Operationstyp: Momentary (self-resetting) Druckknopf, automatically returns when released
- Appearance: Square head with bright yellow color for easy identification
Typische Anwendungen
Industrial automation control panels
Machine tool operation interfaces
Textile machinery control
Marine electrical systems
Power equipment signal indication
Medical equipment control
- Alternative Modelle & Bestellinformationen
Alternative Models in the Same Series
| Modell | Unterschied |
| 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)
Verpackung: Individually packaged; discounts available for bulk orders
Vorlaufzeit: Regular stock item, typically shipped within 5 Tage
- Auswahlnotizen
- Montagekompatibilität: Ensure panel cutout is Φ16mm, compatible with other 16mm series pushbuttons
- Electrical Matching: Load current ≤5A, voltage ≤250V
- Betriebsmodus: Momentary type; select LA39-E11TF/Y for latching function
- Umfeld: 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
GEEIGNET (ehemals Shanghai Second Electric Works) wurde gegründet 1993 und vollständig von Siemens übernommen 2008. Heute ist es eine professionelle Marke für Niederspannungs-Elektrogeräte unter Siemens, Fokussierung auf R&D und Herstellung von Druckknöpfen, Kontrollleuchten, Relais, usw. Als Kernproduktlinie, Die LA39-Serie wird aufgrund ihrer hohen Zuverlässigkeit weltweit häufig in industriellen Steuerungen eingesetzt, lange Lebensdauer und vollständige Spezifikationen.
APT-LA39-E11F-Y is a Φ16mm miniature square yellow momentary pushbutton from Siemens APT (ehemals Shanghai Second Electric Works) LA39‑E series, mit 1 NEIN + 1 Öffnerkontakte.
Yellow is commonly used for warning, Debuggen, standby, Jogging, reset, and intervention functions rather than main start/stop operations.
- Industrielle Automatisierung & Steuerschränke
Fault reset and alarm acknowledgment on electrical cabinets and PLC control panels
Manual jogging, Inbetriebnahme, and maintenance mode switching
Standby start, bypass control, and safety intervention
- Werkzeugmaschinen & CNC Equipment
Auxiliary action jogging for lathes, Fräsmaschinen, Bearbeitungszentren
Temporary manual control of tool changers, lubrication and cooling systems
Machine tool alarm reset and safety bypass
- Maschinen für die Leichtindustrie & Assembly Lines
Commissioning and fine-tuning for packaging, Füllung, Drucken, Textilmaschinen
Temporary jogging of conveyors and sorting equipment
Quick reset of abnormal equipment status
- HVAC, Kühlung, Fans & 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
- Stromverteilung & 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
- Maschinenbau, Schiffe & 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
- Medizinisch, Laboratory & Instrument Equipment
Inbetriebnahme, 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
- Aufzüge, Heben & Logistikausrüstung
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, Debuggen, reset or jogging functions.
Complete List of Siemens APT Product Series (2026 Letzte)
Siemens APT (ehemals 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, Nockenschalter, Relais, Leistungsschalter, warning beacons, Stromwandler, Endschalter, and control boxes, providing a full industrial control solution from miniature components to large protection devices.
- Pushbutton Switch Series (Kernproduktlinie)
- LA39 Series (Classic General Purpose, Φ12/16/22/30mm)
LA39-E: Φ16mm miniature pushbuttons (z.B., 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
Hauptmerkmale: Modular snap-in, self-cleaning contacts, positive break, mechanisches Leben >1,000,000 Zyklen
- PB3 Series (Quick Mount, Φ22mm)
Werkzeuglose Schnellmontage
Multiple operator head combinations for modern control panels
Suitable for mass production and fast maintenance
- LA42 Series (Kompakt, Φ16mm)
Ultra-slim profile, platzsparend
Momentary/latching optional, 1NO/1NC standard
For small equipment and instruments
- LA58 Series (Robust, Φ30mm)
High mechanical strength, stoßfest
For metallurgy, mining and harsh environments
Supports high-current loads up to 10A
- Special Function Pushbuttons
| Serie | Merkmale | Anwendungen |
| LA39-BT | Double pushbutton | Two-hand safety control |
| LA39-ER | Nothalt | Emergency machine shutdown |
| LA39-K | Key-operated | Access control and locking |
| LA39-Z | Drehknopf | Mode switching and adjustment |
- Indicator Light Series
- AD16 Series (Classic General Purpose, Φ16/22/30mm)
AD16-16: Φ16mm miniature LED indicators, geringe Leistung
AD16-22: Φ22mm standard indicators, high brightness, langes Leben
AD16-30: Φ30mm large indicators for long-distance visibility
Colors: Rot, Gelb, Grün, Blau, Weiß, 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, hohe Zuverlässigkeit
Anwendungen: Control circuit switching, Stromverteilung, motor forward/reverse
- LW26 Series (Cam Switches)
Multi-position, complex logic control
Modular, customizable contact combinations
For automated production lines and machine tools
- LW8 Series (Miniature Cam Switches)
Kompakte Größe, platzsparend
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
Kontaktbewertung: 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 (Sicherheitsrelais)
Compliant with EN60947-5-1, for safety circuits
Positive-guided contacts for guaranteed break
For elevators, hoisting and safety-critical systems
- HR Series (Time Relays)
Modi: Einschaltverzögerung, Ausschaltverzögerung, interval delay
Timing range: 0.1s~100h, Genauigkeit ±5 %
Digital display or knob adjustment available
- Circuit Breaker Series
- ATH Series (Miniatur-Leistungsschalter, 6A~63A)
Compliant with IEC60898, 6kA Kurzschlussausschaltvermögen
Thermisch-magnetischer Auslöser, Überlast- und Kurzschlussschutz
For final distribution and control cabinet power protection
- ATZ Series (Kompaktleistungsschalter, 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)
Hoher Nennstrom, 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, geringe Leistung, langes Leben
Anwendungen: Equipment status, Fehleralarm, 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
Anwendungen: Energiemessung, Schutz, Leistungsüberwachung
- Limit Switch Series
ALS1 Series: Standard limit switches, Schutzart IP67
ALS3 Series: Slow-make type for precise positioning
ALS5 Series: Robust, high shock resistance
Anwendungen: Machine travel control, automation positioning, elevator leveling
- Control Box Series
XKA Series: Plastic control boxes, ABS housing, stoßfest, korrosionsbeständig
XKB Series: Metal control boxes, stainless steel, for outdoor and harsh environments
Customization: Custom cutouts and internal layout available
- Produktzertifizierungen
Full series certified by CCC, CE, 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 (z.B., 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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