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Dependable changeover control for automotive electrical circuits
The Bosch 0986332400 is a compact 12V changeover mini relay for automotive and industrial electrical switching. Its bracket-mounted design and five-terminal SPDT configuration support custom wiring, replacement, and service applications when the circuit requirements match.
Key Features
- 12VDC coil for common mobile-electrical systems.
- SPDT changeover contact configuration.
- Five 1/4-inch blade terminals.
- Integral mounting bracket for a secure installation.
- 30A normally open and 20A normally closed contact ratings documented for the exact part.
- Bosch catalog nominal-load classification of 50A.
- Designed to tolerate vibration, impact, and a broad operating-temperature range.
Fitment
| Application | Requirement |
|---|---|
| Universal electrical component | 12VDC system with a compatible five-terminal SPDT socket, circuit load, and wiring arrangement |
This relay is not limited to a verified vehicle year, make, or model. Confirm the terminal layout, contact ratings, mounting space, and circuit requirements before installation.
Specifications
| Detail | Value |
|---|---|
| Brand | Bosch |
| MPN | 0986332400 |
| Component | Mini automotive relay |
| Coil voltage | 12VDC |
| Contact configuration | SPDT changeover |
| Normally open rating | 30A |
| Normally closed rating | 20A |
| Bosch catalog nominal load | 50A |
| Terminals | Five 1/4-inch blade terminals |
| Mounting | Integral bracket |
| Suppression component | None listed in the Bosch catalog |
| Operating temperature | -40°C to 100°C |
| Country of origin | Portugal |
What's Included
- One Bosch 12V SPDT mini relay with integral mounting bracket
About Bosch
Bosch develops automotive electrical components for original-equipment, replacement, and custom-control applications. Its relay range is engineered for dependable switching under the vibration and temperature conditions found in mobile equipment.
FAQ
What is the 0986332400?It is a bracket-mounted 12V SPDT mini relay for compatible automotive and industrial electrical circuits.
Is this relay vehicle specific?No. It is a universal electrical component, so compatibility depends on the circuit, terminal layout, socket, load, and available mounting space.
How many terminals does it use?It uses five 1/4-inch blade terminals in a changeover arrangement.
What are the contact ratings?The exact-part supplier specification lists 30A for the normally open contact and 20A for the normally closed contact.
Why does the Bosch catalog show 50A?Bosch lists a 50A nominal-load classification for this catalog entry, while exact-part supplier documentation separates the normally open and normally closed contact ratings. Design the circuit to the applicable contact rating.
Does the relay include a mounting bracket?Yes. The relay body includes an integral bracket for mechanical mounting.
Does it contain a suppression diode or resistor?The Bosch relay application chart lists this part without a suppression component. Confirm whether the connected circuit requires external suppression.
What operating temperature is documented?The exact-part technical listing specifies an operating range from -40°C to 100°C.
Installation Instructions
- Disconnect the vehicle or equipment battery before servicing the circuit.
- Confirm that the system is 12VDC and that the circuit load does not exceed the applicable contact rating.
- Compare the socket wiring with the relay's five-terminal SPDT layout.
- Mount the bracket to a secure location protected from direct water exposure and moving components.
- Seat each terminal fully in a compatible socket and secure the wiring against abrasion and heat.
- Reconnect power and test both the control and switched circuits.
- Stop testing and inspect the wiring if the relay, socket, or conductors become unusually warm.
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