Does this relay incorporate an over-voltage suppression diode ?

Sorry, I don’t know, but it works well on 12 volts.

Would this work in a 2011 Harley sportster xl custom?

Hi, yes it is a 12 volt relay and should work well.

It is somewhat unclear, is this a normally close relay?

This relay is a changeover relay and can be used as both normally open (no), and normally closed (nc) depending on how you connect it up. However being used as a normally closed relay will result in a reduction in current switching ability depending on what sort of load is being switched

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Bosch 0332209150 Mini Relay 12V 30A, IP5K4 Operating Temperature from -40 Degree to 100 Degree C, 5 Pin Relay

Bosch 0332209150 Mini Relay 12V 30A, IP5K4 Operating Temperature from -40 Degree to 100 Degree C, 5 Pin Relay

Product ID: 65875761

Details

Connector type
Solder
Contact material
Silver
Contact type
Normally Open
Current rating
30 Amps
Mounting type
rod

⚡30A high switching current

🔧IP5K4 rated rugged housing

🌡️-40°C to 100°C temp range

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Description

⚡ Bosch Mini Relay: Power, Precision, and Performance in Every Click!

POWERHOUSE SWITCHING - Handles up to 30A for demanding automotive circuits
QUICK CONNECT DESIGN - Standardized 5-pin layout for hassle-free installation
TRUSTED BOSCH QUALITY - Proven reliability with 4.7-star rating and global acclaim
RUGGED IP 5 K 4 PROTECTION - Durable housing shields against dust and water jets
EXTREME TEMPERATURE RESILIENCE - Operates flawlessly from freezing -40°C to scorching 100°C

The Bosch 0332209150 Mini Relay is a compact, 12V automotive relay rated for 30A switching current. Built to endure extreme temperatures from -40°C to 100°C and protected by an IP5K4 housing, it ensures reliable performance in harsh environments. Featuring a standardized 5-pin design, it offers quick installation and trusted Bosch durability, making it a top choice for professional-grade vehicle electrical systems.

Specifications

ASIN	B004Z0U1IW
Best Sellers Rank	19,172 in Automotive ( See Top 100 in Automotive ) 46 in Car Relays
Brand	Bosch
Coil Voltage	12 Volts (DC)
Connector Type	Solder
Contact Current Rating	30 Amps
Contact Material	Silver
Contact Type	Normally Open
Country Of Origin	Portugal
Current Rating	30 Amps
Customer Reviews	4.7 4.7 out of 5 stars (1,183)
Global Trade Identification Number	03165141149661
Item Type Name	Bosch 0332209150 Mini-Relay
Item Weight	30 Grams
Manufacturer	Bosch
Manufacturer Part Number	0332209150
Maximum Switching Voltage	12 Volts
Minimum Switching Voltage	12 Volts
Model Number	0332209150
Mounting Type	rod
Operation Mode	Automatic
Specification Met	VDE
Unit Count	1.0 count
Wattage	360 watts

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