LDMINDA
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4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
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4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
Excellent waterproof and dustproof performance. Easy to install. Good sealing feature. Good electrical conductivity and corrosion resistance
4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay
Item #: 69220346

4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay

86% of respondents would recommend this to a friend

Item #: 69220346

MWK 79201

Price Details

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*All items will import from US

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Order now and get it around Tuesday, October 06
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Excellent waterproof and dustproof performance. Easy to install. Good sealing feature. Good electrical conductivity and corrosion resistance
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What Stands Out

High Current Capacity
With a heavy-duty 40/30 AMP rating, these relays support powerful automotive applications, ensuring reliability even in the most demanding conditions.
Durable Waterproof Design
The waterproof construction protects the relays from moisture, making them ideal for automotive environments and ensuring longevity in harsh conditions.
Efficient Wiring Harness
Each relay comes with 12 AWG tinned copper wires that provide excellent conductivity and ease of installation, simplifying connections in automotive projects.

Product Details

Shop 4 Pack 12V DC Waterproof Relay and Harness 40/30 AMP Heavy Duty 12 AWG Tinned Copper Wires 5-PIN SPDT Automotive Relay online at a best price in Malawi. B0BJKKMDNC
  • 12V DC waterproof relay and harness 4030 AMP
  • 12 AWG Tinned Copper Wires
  • 5-PIN SPDT Automotive Relay
  • Includes 4 PCS 12V DC waterproof relay and harness
  • 12-volt 5-prong relay with sealed 5 terminals
  • Plug and play installation for both positive and negative activation
Connector TypeSolder
Contact TypeNormally Open
Current Rating30 A
Mounting TypePlug In Mount
Operation ModeAutomatic
Wattage560 watts
Coil Resistance80 ohm
Coil Voltage12 volts
Contact Current Rating40 A
Maximum Switching Current40 A
Maximum Switching Voltage15 volts
Minimum Switching Voltage12 volts
Contact MaterialCopper
Brand NameLDMINDA
UPC689908024013
Included Components12AWG Tinned Copper Wire
ManufacturerLDMINDA
Model5PINRY
Part Number5PINRY
Specification MetCE
Item Weight1.2 lbs (540 grams)

What's in the box

12AWG Tinned Copper Wire

Who Should Buy?

Suitable For
  • Automotive Enthusiasts

    Ideal for car modifications or upgrades requiring reliable control over electrical components and accessories.

  • Off-Grid Users

    Suitable for solar power systems that need switching mechanisms for efficient energy management and distribution.

  • DIY Projects

    Great for hobbyists building custom electrical projects like lighting installations or automated systems.

Not Suitable For
  • Low Power Applications

    Not suitable for devices that require less than 30 amps, as this relay is intended for heavy loads.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a 12V DC waterproof relay used for?

    Answer: A 12V DC waterproof relay is primarily used in automotive and marine applications where protection against moisture is necessary. Its design prevents damage from water exposure, making it ideal for lighting, horns, or other electrical components that operate in damp conditions. The waterproof feature ensures reliability in outdoor or challenging environments, providing peace of mind during usage.
  • Question: How does a 5-PIN SPDT automotive relay work?

    Answer: A 5-PIN SPDT (Single Pole Double Throw) automotive relay functions by using an electromagnetic coil to control the flow of electricity. When voltage is applied to the coil, it acts as a switch that connects the common terminal to either of the two outputs. This versatility allows for multiple configurations, such as connecting a circuit to two different power sources, enhancing functionality for various automotive applications.
  • Question: What are the benefits of using tinned copper wires in automotive relays?

    Answer: Tinned copper wires offer several advantages, including higher corrosion resistance and excellent conductivity compared to standard copper wires. The tin coating protects the wires from oxidization, which is crucial in automotive settings where moisture and heat can prevail. This ensures longevity and consistent performance, maintaining reliable connections for electrical systems.
  • Question: Can these relays handle heavy-duty applications?

    Answer: Yes, the 4030 AMP rating indicates that these relays are built for heavy-duty applications. They are suited for tasks that require high power management, such as controlling large motors or multiple accessories in vehicles. Their robust design ensures that they can endure the demands of heavy applications while maintaining operational safety.
  • Question: What safety features are included with these waterproof relays?

    Answer: These waterproof relays typically include features such as a sealed housing that protects internal components from moisture and contaminants. Additionally, they are designed to handle high current loads without overheating, ensuring that they operate safely under various conditions. This enhances both the reliability and performance of the electrical system in which they are used.
  • Question: What kind of projects are suitable for this 4 pack of relays?

    Answer: This 4 pack of relays is suitable for various projects, including automotive modifications or marine wiring. They can be used to control auxiliary lights, electric winches, or aftermarket sound systems. Their versatility makes them essential for DIY enthusiasts looking to enhance their vehicle's electrical capabilities or those needing reliable switching mechanisms in custom installations.
  • Question: What is the significance of the relay's waterproofing?

    Answer: The waterproofing of these relays is critical for applications exposed to the elements. It significantly reduces the risk of electrical shorts caused by moisture, ensuring that the relay functions properly even in rain or high-humidity environments. This feature is particularly important for vehicles used in off-road situations or in coastal regions where exposure to water is common.
  • Question: How do I wire a 5-PIN SPDT relay correctly?

    Answer: Wiring a 5-PIN SPDT relay requires connecting the coil terminals to the control switch and the common terminal to the load. Typically, connect one side of the coil to the battery and the other to a switch that controls when the relay is activated. Connect the common terminal to the load device and use the other terminals for power inputs, ensuring proper polarity for optimal performance.
  • Question: What type of electrical systems benefit from using these relays?

    Answer: Electrical systems in cars, trucks, boats, and motorcycles benefit significantly from these relays. They are ideal for managing high-current demands such as lighting systems, horns, and other auxiliary devices that enhance functionality. Their ability to control large power loads safely makes them a staple in automotive and marine environments.
  • Question: Where can I buy the 4 Pack 12V DC Waterproof Relay and Harness in Malawi?

    Answer: You can purchase the 4 Pack 12V DC Waterproof Relay and Harness at Ubuy, a reputable online retailer offering a wide selection of automotive parts and accessories. They provide a convenient shopping experience and ensure you can find the necessary components for your projects swiftly. Simply visit their website and search for the product to make your purchase.

LDMINDA Accessory Power Editorial Review

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The 4 Pack 12V DC Waterproof Relay and Harness has garnered a mixed reception among customers, primarily due to confusion surrounding the wiring of the relays. While many users appreciate the product's overall quality and functionality, they are often frustrated by the lack of a clear wiring diagram that could simplify installation. Customers note that the relays operate effectively, but caution that understanding the correct pin configuration is crucial. In some cases, users reported spending significant time troubleshooting improper connections influenced by the incorrect assumptions about the advertised wiring. For those willing to invest the time to verify the pin assignments themselves, the relays work well, suggesting they are designed with durability and performance in mind. In summary, the product appears reliable, but potential buyers should be prepared to manually check wiring configurations to avoid issues during installation. **

Customer Reviews & Ratings

28 customers ratings
  • 5 Star
    59%
  • 4 Star
    22%
  • 3 Star
    13%
  • 2 Star
    6%
  • 1 Star
    0%

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Pros

  • Good overall product quality
  • High durability with waterproof design
  • Operates effectively when wired correctly

Cons

  • Lack of clear wiring diagram provided

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“Great products and very good service: very easy and very fast international delivery.”

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“I received exactly what I ordered I was skeptical about your site because that was my first time to order. But the order came timely and neatly packaged. I was not disappointed. Thank you.”

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“Easy to find and order what you want on the website. Delivery is quick to the UK”

8 September 2026 · via Trustpilot
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Important information

  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
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MWK 79201

Order now and get it around Tuesday, October 06

QTY:

Only 6 items left in stock.
Secured transactionsecured transaction

PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

Our Top Logistics Partners
  • fedex
  • dhl
Fastest cross-border delivery

Features & Benefits

  • 12 V DC waterproof 5-prong relay with both normally open and normally closed terminals
  • Includes 4 relays with tinned copper wires for good electrical conductivity and strong corrosion and oxidation resistance
  • Maximum current rating of 40 Amps and good sealing feature for stable performance
  • Easy to install with plug and play feature, works for both positive and negative activation
  • Excellent waterproof and dustproof performance and good sealing feature
  • Not suitable for use in water

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