Klaxon Horn Relay - Bosch - 0332019103
Best current price£7.43from eBay
Best offers
Shopping.co.uk recommended and popular offers
eBay£7.43Visit shop BOSCH RELAY 0332019103 0986332209
Visit shopeBay£7.43Visit shop All Offers
2 offers from £7.43 - £11.50
View price history by clicking the chart icon.
0 332 019 103 Klaxon Horn Relay Fits Audi Citroen Fiat Iveco Lada Lancia BoschFree delivery in 1–3 days£11.50Visit shop →
Used Offer
1 offer from £14.90
View price history by clicking the chart icon.
eBay0 332 019 103 BOSCH Multifunctional Relay for ALFA ROMEO,AUDI,AUDI (FAW),CHEVROL
Free delivery in 1–3 days
£14.90
Visit shop
Product Information
Full details
This Bosch 0332019103 Klaxon Horn Relay is designed for automotive applications requiring a durable and robust 12V, 30A, four-pole relay switch. Its primary benefit is high power handling and exceptional longevity, capable of up to 250,000 switching cycles. A potential caveat for users is its specialized nature, best suited for direct horn activation or similar high-current circuits rather than general-purpose switching.
All features
| Model Part Number | 0332019103 |
|---|---|
| Brand | Bosch |
Extended Product Information
FAQs
What voltage does this relay operate on?
This relay is designed for 12V DC automotive electrical systems.
What is the maximum current this relay can handle?
The relay is rated for switching currents of up to 30 Amperes.
How many switching cycles can this relay endure?
It is developed to allow for up to 250,000 switching cycles.
Can this relay be used in extreme weather conditions?
Yes, its temperature-resistant design allows it to operate in ambient temperatures ranging from -40°C to +100°C.
What does 'normally open' mean for this relay?
Normally open means that the electrical contact path within the relay is open (not conducting) when the relay is not energized. When power is applied to the relay's coil, the contact closes, allowing current to flow to the connected device.
What is the housing protection rating (IP rating) of this relay?
The housing has an IP5K4 rating, providing protection against dust and splashing water. The terminals have an IP20 rating.
What materials are used for the base plate and housing?
The base plate and housing are made from fiber-reinforced polyamide, which offers high corrosion resistance.
Troubleshooting
Relay does not activate the connected device (e.g., horn).
Check that the trigger circuit (switch) is functioning correctly and providing 12V to the relay coil. Verify that the power source and the load are correctly connected to the appropriate relay terminals. Ensure the relay itself is receiving a good ground connection if applicable to the circuit design.
Device connected to the relay is not receiving full power.
Inspect all connections to the relay and the device for looseness or corrosion. Ensure the wire gauge used is adequate for the 30A current draw. The relay may be faulty if power is present but low.
Relay becomes excessively hot during operation.
This could indicate the current draw exceeds the 30A rating or the relay is failing. Verify the load's current requirement. If the load is within specifications, the relay may need replacement.
Corrosion or damage to the relay housing or terminals.
If minor corrosion is present on terminals, clean with a suitable electrical contact cleaner. If the housing is compromised or terminals are significantly damaged, replace the relay to maintain protection and performance.
Pros and Cons
Pros
- Exceptional durability and long service life.
- High current handling capacity for demanding applications.
- Robust design resistant to extreme temperatures.
- Excellent corrosion resistance due to material choice.
- Reliable performance with a high number of switching cycles.
Cons
- Specific application focus (e.g., horn circuits) may limit general use.
- Requires appropriate wiring and electrical knowledge for installation.
- May be over-specified for lower-power switching tasks.
Setup, Compatibility & Care
Setup: This is a normally open, four-pole relay. Installation involves connecting it into the appropriate automotive electrical circuit. Typically, this requires connecting the power source, the switch (trigger), and the load (e.g., the horn) to the corresponding terminals on the relay. Refer to a vehicle's specific wiring diagram or consult a professional auto electrician for correct integration. Ensure all connections are secure and insulated.
Compatibility: Designed for 12V DC automotive electrical systems. It is specifically suited for high-current applications such as powering klaxon horns, powerful auxiliary lights, or starter solenoids. Verify your system's voltage and current requirements match the relay's specifications.
Care: Due to its sealed housing (IP5K4) and corrosion-resistant materials, minimal maintenance is required. Periodically inspect visible wiring connections for signs of corrosion or damage. Ensure the housing remains intact to maintain its protective rating. Avoid direct high-pressure water spray on the relay terminals (IP20).