Description
Elemax Honda SH3900EXR Portable Gasoline Generator (3.3 KVA Capacity)
When facing unexpected power interruptions, running portable tools on remote construction sites, or managing mobile operations, you need a compact generator built without compromise. The Elemax SH3900EXR represents the gold standard of Japanese engineering, bringing together world-class reliability, outstanding fuel efficiency, and unyielding power output in a portable footprint. Designed to excel where standard commercial units fall short, this machine delivers a dependable 3.3 KVA peak capacity (2.8 KVA rated), ensuring your essential appliances, tools, and lighting grids operate smoothly and safely.
At the core of the SH3900EXR is a genuine, high-performance Honda GX200 4-stroke overhead-valve (OHV) engine. Renowned for its exceptional durability and low maintenance, this engine consumes significantly less fuel than comparable side-valve alternatives, maximizing your cost-effectiveness over long project cycles. Power delivery is optimized by Elemax’s custom-engineered Sawafuji square core alternator, yielding a 10% to 25% boost in output efficiency compared to standard series. Furthermore, the built-in Automatic Voltage Regulator (AVR) continuously smooths out voltage fluctuations, guaranteeing safe, clean power transmission for sensitive electronic equipment.
Engineered to endure the harshest field conditions, the generator is protected by a ruggedized frame featuring welded upper bars and widened steel pipes to prevent impact damage during transit or rough job site handling. Equipped with a 17-liter fuel tank that supports up to 10 hours of continuous runtime at 50Hz, and a redesigned weatherproof control panel, the Elemax SH3900EXR stands as the ultimate benchmark of reliable, grab-and-go mobile power.
Key Features & Specifications:
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Genuine Honda GX200 Engine: Powered by a world-class 196cc 4-stroke OHV petrol engine delivering high torque, exceptional reliability, and superior fuel economy.
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Sawafuji Square Core Alternator: Innovative alternator design increases output power by 10% to 25% over standard configurations for peak electrical efficiency.
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Automatic Voltage Regulator (AVR): Actively stabilizes voltage output to prevent electrical surges, making it safe for sensitive electronics and tools.
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Extended 17-Liter Fuel Tank: Engineered with a high-capacity fuel reservoir that provides up to 10 hours of continuous operation on a single fill at 50Hz.
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Rugged Job Site Frame: Heavy-duty tubular steel construction with reinforced upper crossbars shields critical components from rough handling and transport wear.
Official Technical Specifications:
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Brand / Model: Elemax SH3900EXR
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Country of Origin: Japan
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Engine Model: Honda GX200 (OHV, 4-Stroke, Air-Cooled)
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Displacement: 196 cc
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Rated Power Output (50Hz): 2.8 KVA
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Maximum Power Output (50Hz): 3.3 KVA
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Alternator Type: Sawafuji Square Core
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Voltage Regulation: AVR (Automatic Voltage Regulator)
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Fuel Type: Unleaded Gasoline
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Fuel Tank Capacity: 17 Litres
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Continuous Runtime (50Hz): Up to 10 Hours
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Starting System: Recoil Start
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DC Output: 12V / 8.3A
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Dry Weight: 46 kg
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Application: Home emergency backup, field operations, portable workshops, and job site power





