43.63 EUR
Bosch 0342106004 Headlamp-Ignition Switch
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Bosch 0342106004 Headlamp‑Ignition Switch
The Bosch 0342106004 Headlamp‑Ignition Switch is a precision component engineered for reliable operation in automotive and industrial applications. Designed to integrate seamlessly with Bosch’s extensive range of electrical systems, this switch delivers dependable performance under demanding conditions.
Key Functionalities
- Dual‑mode operation: The switch simultaneously controls the vehicle’s headlamp system and ignition circuit, reducing component count and simplifying wiring harnesses.
- Three‑position configuration: It offers a clear “Off,” “On,” and “Ignition” stance, ensuring intuitive user interaction and preventing accidental activation.
- Robust contact design: Constructed with high‑conductivity materials, the contacts resist corrosion and maintain low resistance over extended use.
Electrical Specifications
| Parameter | Value |
|---|---|
| Rated Voltage | 12 V DC (typical automotive) |
| Current Capacity | Up to 30 A per contact |
| Contact Material | Nickel‑plated brass with silver coating for reduced wear |
| Operating Temperature Range | -40 °C to +125 °C |
| Mechanical Life | ≥ 100,000 cycles |
Physical Characteristics
The switch features a compact footprint suitable for tight engine bay spaces. Its housing is molded from high‑strength polycarbonate, providing excellent impact resistance and shielding against electromagnetic interference.
- Dimensions: 35 mm × 20 mm × 15 mm (L×W×H)
- Mounting holes: Standard 5‑mm M3 screw pattern
- Color coding: Black housing with clear indicator LEDs for each position
Installation Guidelines
- Align the switch’s mounting flange with the vehicle’s chassis or control panel.
- Secure using M3 screws, ensuring a torque of 0.8 Nm to maintain electrical continuity.
- Connect the headlamp leads to the designated “On” terminals and the ignition lead to the “Ignition” terminal.
- Verify polarity before energizing the circuit; reverse connections can damage internal contacts.
Testing & Quality Assurance
Each unit undergoes rigorous testing, including:
- Electrical continuity checks to confirm low resistance paths.
- Environmental stress tests (temperature cycling, vibration, and humidity).
- Mechanical endurance trials exceeding the specified cycle life.
Applications
The Bosch 0342106004 is ideal for:
- Passenger vehicles requiring integrated headlamp and ignition control.
- Commercial trucks where space optimization is critical.
- Industrial machinery that benefits from a single switch to manage lighting and power start functions.
Maintenance & Troubleshooting
Routine inspection should focus on:
- Visual check for corrosion or debris on contacts.
- Ensuring the indicator LEDs remain functional; a non‑lit LED may signal a contact failure.
- Re-tightening mounting screws after vibration exposure to prevent loosening.
If the switch fails to engage, verify:
- Correct wiring polarity and continuity of the ignition circuit.
- Absence of short circuits between adjacent terminals.
- Integrity of the housing; cracks can compromise internal contact alignment.
Conclusion
The Bosch 0342106004 Headlamp‑Ignition Switch exemplifies Bosch’s commitment to durability, safety, and functional integration. Its dual‑mode capability, robust construction, and comprehensive specifications make it a reliable choice for any application demanding simultaneous control of lighting and ignition systems.
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| Brand |  Bosch is a brand of power tools and appliances. The company was founded in 1886 and produces a wide range of power tools, appliances, and accessories. Bosch tools are known for their quality and durability, and the company is a leader in innovation and design. |
| Model | Bosch 0342106004 |
| MPN | Bosch 0342106004 |
| ID | 7069904 |
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