Description
Product Overview
The BOYISEN 30 Amp Generator Inlet Box is engineered for reliable outdoor power transfer. Constructed from heavy‑gauge steel and finished with a powder‑coated, weatherproof layer, the enclosure protects internal connections from rain, dust, and UV exposure. Certified to ETL standards for 30 A, 125/250 V systems, it safely integrates with transfer switches and outdoor panels. A green LED on the flip‑cover provides immediate visual confirmation that power is present, even in low‑light conditions. The box measures 6.56 x 4.65 x 4.61 inches and weighs 2.57 lb, offering a compact yet spacious interior—about 50 % larger than comparable models—allowing organized wiring and easy future upgrades.
Usage
Designed for homeowners, contractors, and RV enthusiasts, this inlet box excels in any setting where a generator must feed a building’s electrical system. Install it on a patio, garage wall, or utility shed to create a clean, weather‑sealed connection point for standby generators, portable power units, or job‑site generators. The 1.2″ pre‑drilled holes on all four sides accommodate a variety of conduit sizes, making it simple to route cables to transfer switches, breaker panels, or load centers. Whether you’re preparing for storm‑season backup power or need a durable power inlet for a construction site, the BOYISEN box delivers a secure, code‑compliant solution.

Why Choose Us
BOYISEN combines industry‑grade materials with thoughtful engineering. The powder‑coat finish resists corrosion, extending the product’s lifespan even in harsh climates. ETL certification guarantees compliance with North American safety standards, reducing the risk of carbon monoxide exposure by ensuring a proper, isolated power feed. Our tool‑free installation eliminates the need for drills or special equipment—simply remove the rubber plugs, connect your wiring, and snap the cover back into place. Backed by 12 months of dedicated customer support, you receive peace of mind and assistance whenever you need it.
Key Features
- ETL‑certified 30 A, 125/250 V rating for safe generator integration
- Weatherproof steel construction with durable powder‑coat finish
- Integrated green LED power indicator for instant status feedback
- Spacious interior—50 % more space than standard models—for organized wiring
- Tool‑free installation with removable rubber plugs and 1.2″ multi‑side conduit holes
FAQ
Is this inlet box compatible with all generator brands?
Yes. The BOYISEN inlet box follows standard 30 A, 125/250 V specifications, making it compatible with any generator that meets those ratings, regardless of brand.
Can I install the box without professional help?
The design is tool‑free, requiring only basic hand tools to remove the rubber plugs and secure the cover. However, electrical codes may require a licensed electrician for final connections to a transfer switch or panel.
How does the LED indicator work in low‑light conditions?
The green LED is positioned on the flip‑cover and glows brightly when voltage is present, providing clear visual confirmation even in dark or poorly lit environments.
What warranty does BOYISEN provide?
All units come with a 12‑month warranty covering manufacturing defects, plus access to our customer support team for any installation or performance questions.
Is the box truly weatherproof?
Yes. The steel housing is coated with a powder‑finish that resists moisture, rust, and UV damage, ensuring reliable operation in rain, snow, or high humidity.




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