Stephill 6500HMSLR | 5.2kW Long-Run Petrol Generator | 230V/115V | Honda GX390 Engine

The Stephill 6500HMSLR is a heavy-duty 5.2kW long-run petrol generator built for construction, equipment hire and demanding professional use. Powered by a Honda GX390 Stage V engine, it provides 230V and 115V outputs, a reinforced wrap-around frame and up to 6.2 hours of runtime at 75% load.

Stephill 6500HMSLR 5.2kW Long-Run Petrol Generator 230V/115V | Honda GX390

The Stephill 6500HMSLR 5.2kW Long-Run Petrol Generator is engineered to meet the demanding requirements of construction sites, equipment-hire fleets, industrial maintenance and professional trade applications.

Delivering a continuous and maximum output of 6.5kVA / 5.2kW, it combines a dependable Honda GX390 petrol engine with a reinforced frame, heavy-duty alternator and versatile 230V and 115V industrial sockets.

Designed and manufactured in the UK, the 6500HMSLR provides a durable and cost-effective source of portable power for demanding working environments.

Honda GX390 Stage V Petrol Engine

The generator is powered by a professional Honda GX390 four-stroke petrol engine.

Honda GX engines are widely recognised for dependable starting, fuel efficiency and long service life. The engine complies with EU Stage V emissions requirements and uses a straightforward recoil-starting system.

Honda’s Oil Alert system automatically shuts the engine down when the oil level falls below a safe operating point, helping protect against avoidable engine damage.

Dual 230V and 115V Outputs

The Stephill 6500HMSLR is fitted with:

• 1 × 115V 16A socket
• 1 × 115V 32A socket
• 1 × 230V 16A socket
• 1 × 230V 32A socket

This socket configuration allows the generator to power reduced-voltage construction equipment alongside standard 230V tools and appliances.

The available output through each socket is limited by its voltage and current rating. Additional allowance should be made for equipment with high starting demands, including pumps, motors and compressors.

Important Specification Note

The supplied technical specification identifies this model as a single-phase 230V/115V generator. The earlier reference to a 400V socket does not match the listed socket configuration and has therefore not been used in this product description.

Heavy-Duty Hire Specification

The 6500HMSLR is constructed specifically for demanding professional environments.

Its heavy-duty design includes:

• Reinforced full wrap-around frame
• Twin-mounted alternator
• Robust metal control box
• Heavy-duty mounting system
• Durable skid-mounted base
• Angled anti-vibration mountings

These features protect the generator during transportation and frequent site use while reducing vibration during operation.

Brushed Alternator

The Honda engine is coupled to a heavy-duty brushed alternator with compound air cooling.

This configuration provides dependable electrical output for compatible tools, machinery, lighting and professional site equipment.

Automatic Voltage Regulation is not fitted as standard but may be available as an optional configuration.

Electrical and Engine Protection

The generator includes essential protection systems for professional use:

• Honda Oil Alert and low-oil shutdown
• MCB overload protection
• Short-circuit protection
• Heavy-duty metal control panel
• Protective wrap-around frame
• Anti-vibration engine and alternator mounts

Long-Run Fuel Tank

The integrated 15.5-litre petrol tank provides up to approximately 6.2 hours of operation at 75% load.

This extended runtime makes the generator suitable for longer working periods where frequent refuelling would be inconvenient.

Actual runtime will vary depending on the connected load, operating conditions and maintenance of the generator.

Optional Extras

Available options may include:

• Electric-start system
• Wheel kit
• Automatic Voltage Regulator

Optional equipment should be confirmed when ordering.

Suitable Applications

The Stephill 6500HMSLR is suitable for:

• Construction and building sites
• Equipment-hire fleets
• Industrial maintenance
• Workshops and trade applications
• Agricultural operations
• 115V professional site tools
• 230V electrical equipment
• Temporary and mobile power

Key Features

• Continuous and maximum output of 6.5kVA / 5.2kW
• Single-phase 230V and 115V output
• Honda GX390 Stage V petrol engine
• Recoil starting
• Heavy-duty hire specification
• Reinforced full wrap-around frame
• Twin-mounted alternator
• Robust metal control box
• Brushed alternator with compound air cooling
• Honda Oil Alert low-oil shutdown
• MCB overload protection
• Short-circuit protection
• Angled anti-vibration mountings
• 15.5-litre long-run fuel tank
• Up to approximately 6.2 hours’ runtime at 75% load
• Noise level of approximately 72dB(A) at 7m
• Optional electric start
• Optional wheel kit
• Optional AVR configuration