The Bosch Universal Automotive Mini Relay is a reliable 12V, 30A, 5-pin (87a) relay designed for a wide range of automotive electrical applications. Built to Bosch quality standards, this relay provides stable switching performance for circuits requiring dependable current control in both standard and demanding operating conditions.

This relay uses a changeover (SPDT) configuration, making it suitable for applications such as lighting systems, cooling fans, horns, fuel pumps, auxiliary accessories, and custom automotive wiring setups. With a wide operating temperature range and durable internal construction, it is engineered for long service life and consistent electrical performance.

This product replaces the older Bosch part number 0332209150 and is now supplied under the updated part number 0986332400, with identical specifications and functionality.

Key Features

• Genuine Bosch universal automotive relay

• 12V system, rated current up to 30A

• 5-pin configuration with 87a (changeover type)

• Stable switching and reliable contact performance

• Suitable for various automotive electrical applications

• Designed for harsh temperature environments

Technical Specifications

• Rated Voltage: 12 V

• Rated Current: 30 A

• Number of Pins: 5 (with 87a)

• Relay Type: Mini relay (changeover / SPDT)

• Coil Resistance: 16 Ohm

• Operating Temperature Range: −40°C to +100°C

• Old Part Number: 0332209150

• New Part Number: 0986332400

Specifications are provided for reference and application matching purposes.

Q&A

Is this relay original Bosch?
Yes. This is a genuine Bosch automotive relay supplied under the current Bosch part number 0986332400, which replaces the older 0332209150.

What does 5-pin (87a) mean?
A 5-pin relay with terminal 87a is a changeover relay (SPDT). It allows switching between normally open and normally closed circuits depending on whether the relay is energized.

Can this relay replace my old 0332209150 relay?
Yes. Part number 0986332400 is the direct replacement for 0332209150 and is fully compatible in terms of specification and function.

What is the difference between 5-pin (87a) and 5-pin (87/87) relays?
A 5-pin 87a relay is a changeover type (SPDT) with one normally closed contact, while a 5-pin 87/87 relay has two normally open outputs that activate simultaneously. They are not interchangeable and must match the original relay type used in the vehicle or circuit.

What applications is this relay suitable for?
It is commonly used for headlights, fog lamps, cooling fans, horns, fuel pumps, auxiliary accessories, and custom automotive wiring projects.

Is professional installation recommended?
Yes. Correct wiring and relay orientation are important to prevent electrical faults or damage to the vehicle’s electrical system.