
FB33KA Comparison
| photo | price | summary | rating |
|---|---|---|---|
![]() | $51.29 | Condition is New, Weasch 12V 3 Way PreWired Fuse Relay Box, 4Pin 80A Relay Block and Kit, 3 Rel..., FREE SHIPPING | 100.0% |

The WEASCH FB33KA 12V Prewired Fuse Relay Box is an essential accessory for any vehicle or electrical system that requires reliable and efficient relay control. This 4-pin, 80A block kit is designed to ensure optimal performance and safety for your electrical applications.
The box comes prewired with a 12V DC power source, making installation straightforward and hassle-free. Each of the four relays has a maximum current capacity of 80A, making it suitable for handling heavy electrical loads. The four relays are independently controlled and can be used to switch on or off various electrical components in your vehicle or electrical system.
The WEASCH FB33KA 12V Prewired Fuse Relay Box is designed with durability in mind. It features a rugged and waterproof housing, ensuring that it can withstand harsh environmental conditions. The relays are also protected by over-current and short-circuit protection, providing an added layer of safety.
The box includes four fuse slots with a maximum fuse rating of 30A, allowing you to protect each relay against over-current damage. The fuse slots are conveniently located on the top of the box, making it easy to access and replace fuses if necessary.
The WEASCH FB33KA 12V Prewired Fuse Relay Box is a versatile and cost-effective solution for managing heavy electrical loads in your vehicle or electrical system. Its prewired design simplifies installation, while its rugged construction and over-current protection ensure reliable and safe operation. Whether you're building a custom electrical system or upgrading the electrical components in your vehicle, this relay box is an excellent addition to your toolkit.
Weasel FB33KA 12V Prewired Fuse Relay Box 4Pin 80A: A Comprehensive Analysis
The Weasel FB33KA 12V Prewired Fuse Relay Box 4Pin 80A is a popular accessory for various automotive and electrical projects. This device offers several benefits, but like any other product, it comes with its advantages and disadvantages. In this analysis, we'll discuss both the pros and cons to help you make an informed decision.
Pros:1. Convenient prewired design: The Weasel FB33KA comes prewired, making installation quicker and easier.
2. High current capacity: With a 80A rating, this relay box is suitable for heavy-duty applications.
3. Versatile usage: The 4-pin configuration allows for various wiring configurations, making it adaptable to various project requirements.
Cons:1. Limited compatibility: This relay box may not be compatible with all vehicle makes and models, so it's essential to verify its suitability before purchasing.
2. Limited protection: While the Weasel FB33KA offers excellent current handling capabilities, it may not provide advanced overcurrent or overvoltage protection.
3. Limited documentation: The Weasel FB33KA doesn't come with extensive documentation, which might make installation more challenging for some users.
In conclusion, the Weasel FB33KA 12V Prewired Fuse Relay Box 4Pin 80A is an excellent choice for those seeking a reliable and easy-to-install solution for heavy-duty electrical applications. Its convenience, high current capacity, and versatility make it a valuable addition to many projects. However, potential users must be aware of its limited compatibility and documentation, as well as the lack of advanced protection features.
Recommendation:If you're looking for a prewired relay box with a high current capacity for your automotive or electrical project, the Weasel FB33KA is an excellent choice. Just ensure that it's compatible with your specific application and that you're comfortable with the installation process, given the limited documentation provided.
Details:
Can block most dust from entering the 12v relay box, and protect electrical components being touched by wires, effectively improving usage safety. Note: no waterproof bottom, don't completely immerse the product in water. It provides a versatile solution for managing electrical systems in variety of vehicles, ensuring reliable performance and safety. Cover material: plastic.
Double protection: this relay box is equipped with 3 ACT fuse slots and wired in series relays, providing double over current protection for the circuit. Specification: fuse type: ACT Ati. Base material: flame retardant nylon material. Pre-wired: 30 power input red and 87 normally open output pin yellow is 4mm wire, handling about 25 32 85 control positive 86 relay parallel 0.75mm black wire 3/6 negative 1.5mm 10 16amp.
Rustproof: this fuse relay box includes a top cover and bottom. Weasch 12v 3 way pre-wired fuse relay box, 4-pin 80a block and kit, relays ACT/Ati blade fuses, for cars truck jeep: specifications: this 12v relay box package includes 3pcs 4pin jd1912 relays, 20a, 25a, 30a blade fuses. Product shape: insert type. You can replace these fuses according to actual needs.
The fuses will blow first, protecting your equipment from damage and ensuring electrical safety.
specifications fuseaud:
- brand: Weasch
- mpn: Fb33ka
- part type: Fuse Box Block Kit
- measurement system: Number
- model name: Fuse Box
- contact material: Copper
- contact current rating: 80.0
- contact type: Normally Open
- specification met: Ce
- connector type: Crimp
- input voltage: 12.0
- size: 80a 3 Relay 3 Fuses
- style: Pre-wired
- operation mode: Manual
- mounting type: Screw Mount
- package dimensions lxwxh: 4.3x4.3x4.2 Inches
- weight: 0.89 Pounds
seller fuseaud:
- city: phoenix, az
- rating: 100.0%
- # reviews: 30
general fuseaud:
- category: Electronics > Vehicle Gps > Car Audio Video Installation > Fuses Holders
returns fuseaud:
- paid by: buyer
- method: money back
- policy: returns accepted
- time: 30 days
payments fuseaud:
- wallet: apple-pay
- credit card: visa
- other
shipping fuseaud:
- transit: 5-10 days
- class: standard
- service: standard
- type: fixed
offer fuseaud:
- started: march 18, 2026
- options: ship-to-home
- sold #: 7
- availability: in stock
- in stock #: 1
- price: $51.29
- item condition: New
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