- Home Page /
- Automotive /
- Automotive Replacement Parts /
- Switches & Relays /
- Relays /
- Accessory Power /
- 4-pin 40/30Amp 12V DC Waterproof Automotive R...
0 ratings
Item #:
220465218
4-pin 40/30Amp 12V DC Waterproof Automotive Relay with Heavy-Duty Wire
85% of respondents would recommend this to a friend
Item #:
220465218
TMT 62
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
0 ratings
Write a review
In stock
Imported from USA store
QTY:
Order now and get it around Sunday, September 20
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Excellent water-repellent and dustproof ability.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Heavy Duty Wires
Equipped with robust, durable wires, this relay ensures reliable performance in automotive applications, providing enhanced safety and minimizing the risk of electrical failures.
Waterproof Design
Designed to withstand harsh conditions, the waterproof construction protects internal components, making it ideal for outdoor or off-road vehicle use, ensuring longevity and consistent operation.
SPST Configuration
With a Single Pole Single Throw (SPST) setup, this relay simplifies electrical circuits in vehicles, allowing for easy control over high-current devices, enhancing functionality and efficiency.
Product Details
| Connector Type | Plug-In |
| Contact Type | Normally Open |
| Current Rating | 30 A |
| Mounting Type | Socket Mount |
| Operation Mode | Manual |
| Wattage | 1.8 watts |
| Coil Resistance | 80 ohm |
| Coil Voltage | 12 volts_of_direct_current |
| Contact Current Rating | 40 A |
| Minimum Switching Voltage | 12 volts_of_direct_current |
| Specification Met | UL |
| Brand Name | iRhapsody |
| Unit Count | 2 Count |
| Manufacturer | IRHAPSODY |
| Model | Relay-RHP |
| Part Number | 4PIN12VWFrelay40A2P |
| Contact Material | Copper |
| Item Weight | 1 lbs (450 grams) |
Who Should Buy?
-
Automotive Enthusiasts
Ideal for car modifications requiring dependable relays for lights, audio systems, or other power accessories.
-
Marine Applications
Perfect for boats needing waterproof components to ensure reliable electrical connections in wet environments.
-
DIY Projects
Great for hobbyists building custom electrical projects who need a robust relay for controlling various devices.
-
High Power Equipment
Not suitable for applications requiring over 40 AMP or high voltage operation beyond its rated limits.
Product Description
4-pin 40/30Amp 12V DC Waterproof Automotive Relay with Heavy-Duty Wire
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What is the maximum capacity for this relay?
Answer: Do not exceed 40AMPS; it's recommended to stay 10 to 15% below the maximum rate. -
Question:
Is this relay suitable for outdoor use?
Answer: Yes, it has excellent water-repellent and dustproof capabilities but should not be submerged in water. -
Question:
Can I use this relay for both positive and negative systems?
Answer: Yes, the relay is designed to work with both positive and negative activation.
iRhapsody Accessory Power Editorial Review
The 4-pin 4030AMP 12V DC Waterproof Relay has garnered a positive reception among users, particularly for its durability and ease of installation. Many customers appreciate the waterproof feature, which is crucial for automotive applications, and the heavy-duty nature of the build, suggesting that it is designed to withstand harsh conditions. Users also noted that the gauge of the wires, while not fully copper, still performs well and meets their expectations. Installation appears to be straightforward, with positive feedback on the clarity of the instructions, although more detailed guidance is readily available online. This has made it a preferred choice for various applications, such as power window conversions and as a "hard start" relay in classic vehicles. While some users mentioned the absence of an audible click when activated, this hasn't affected their overall satisfaction with the product, as it operates effectively and does what it was designed for. Overall, this relay offers excellent value for money, particularly for those with weather-sensitive automotive projects. **
Customer Reviews & Ratings
1 customers ratings
-
5 Star
100%
-
4 Star
0%
-
3 Star
0%
-
2 Star
0%
-
1 Star
0%
Review this product
Share your thoughts with other customers
Pros
- Waterproof design for durability in harsh conditions
- Heavy-duty Construction
- Easy to install with clear instructions
- Generous wire length for flexibility in installation
- Performs well despite wires not being 100% copper
Cons
- No audible click when activated, which some users noted
Platform Trust & Buyer Confidence
JK
Jasmin
Verified buyer
“Great products and very good service: very easy and very fast international delivery.”
9 September 2026 · via Trustpilot
AG
Anke
Verified buyer
“Wonderful online shopping experience, smooth transaction from the start. Payment method works conveniently and delivery is unexpectedly fast and reliable. You go the extra mile for service. What makes this even more amazing, you deliver to Namibia. I will remain a happy Ubuy customer and will increase my purchases for sure! Thank you!”
10 September 2026 · via Trustpilot
H
Hazel
Verified buyer
“Very easy to find the products what you need, and so fast delivery, that’s why I highly recommended to others costumers to used ubuy.”
10 September 2026 · via Trustpilot
O
Opaleye
Verified buyer
“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.”
11 September 2026 · via Trustpilot
AC
Adele
Verified buyer
“Easy to find and order what you want on the website. Delivery is quick to the UK”
8 September 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
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.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TMT 62
Order now and get it around Sunday, September 20
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Secured transaction
PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- 4-pin 40/30AMP 12VDC waterproof relay kit.
- Built-in diode for added reliability.
- SPST configuration for versatile applications.
- Thick 12 gauge wire ensures durability.
- Easy installation with provided wiring diagram.
- Compatible with both positive and negative activation.
Ubuy Assurance
Experience worry-free shopping with 100% original products, PCI DSS-compliant payment security, ISO 27001-certified data protection, the fastest cross-border delivery, free returns *, and secure packaging on every order.