Description
Stanley Petrol Generator 4.4 KW SG4200B-1 / SG4200
When grid power is inaccessible or fails, maintaining productivity demands a reliable mobile power source. The Stanley Petrol Generator SG4200B-1 is engineered to provide consistent, heavy-duty electrical output for tools, equipment, and facility lighting. Driven by a forced air-cooled, single-cylinder 4-stroke OHV engine with a 389cm³ displacement, this synchronous generator delivers a steady 4.0 kW of continuous rated power and reaches up to 4.2 kW of maximum peak power, ensuring smooth operation for demanding applications.
Designed for maximum operational convenience, the SG4200 features a built-in electric start system, eliminating the physical strain of manual pull-starts and getting you powered up instantly. It boasts a substantial 25-liter fuel tank for unleaded petrol, paired with a highly efficient fuel consumption rate of just 1056 g/h at 2/3 load, allowing for extended, uninterrupted working hours. With a robust IP23M protection class, a G1 power class rating, and the ability to operate in ambient temperatures up to 40°C, this generator is built to endure the rigors of challenging outdoor job sites and industrial environments.
Key Features & Specifications:
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High-Performance OHV Engine: Powered by a 389cm³ forced air-cooled 4-stroke engine for reliable, heavy-duty power generation.
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Effortless Electric Start: Integrated electric start system allows for fast, strain-free ignition in any condition.
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Extended Operational Run Time: Equipped with a massive 25-liter fuel tank and optimized fuel consumption (1056 g/h at 2/3 load) for long working hours.
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Consistent Power Output: Delivers a continuous 4.0 kW rated power and 4.2 kW maximum power to comfortably support demanding industrial tools and equipment.
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Durable & Safe Operation: Features an IP23M protection rating and is engineered to operate safely in temperatures up to 40°C and altitudes up to 1000m.
Official Technical Specifications:
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Brand / Model: Stanley SG4200B-1 / SG4200
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Generator Type: Synchronous
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Engine Design: Single-cylinder forced air-cooled 4-stroke OHV (389 cm³)
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Power Output (AC): 4.0 kW Continuous (S1) / 4.2 kW Maximum Peak (Pmax)
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Rated Voltage / Current: 3x 230 V~ | 17.4 A (Also includes 1x 12 V d.c. / 8.3 A output)
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Fuel & Capacity: Normal unleaded petrol | 25 L Tank Capacity
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Engine Oil Capacity: Approx. 1.1 L (15W40 / 5W30 for <0°C)
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Fuel Consumption: 1056 g/h (at 2/3 load)
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Protection / Noise Level: IP 23M | Guaranteed sound power level LWA: 97 dB(A)
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Primary Application: Construction sites, workshop power supply, commercial field operations, and emergency backup





