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  • New item   In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4
    New item   In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4 1
    New item   In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4 2
    New item   In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4 3

    In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4

    Code: ES-ISURE4
    Inquire about this item
    Price 59.97 € VAT incl.
    ( 49.56 € VAT excl. )
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    In-line duct fan ES-ISURE4: 12 V DC, 270 CFM (~459 m³/h), 4″ (100 mm).

  • Product description

    In-line duct fan | 12 V DC | 270 CFM (~459 m³/h) | 4″ (100 mm) | axial impeller | ES-ISURE4

    Compact 12 V DC in-line fan for 4″ (100 mm) hoses and ducts: up to 270 CFM (~459 m³/h) for vehicles, boats and technical spaces.

    Key point:
    Powered from a 12 V battery system, axial impeller in a plastic housing and mounting base – a solution where no 230 V mains is available.
    Airflow
    270 CFM (~459 m³/h)
    Power supply
    12 V DC
    Duct diameter
    4″ (100 mm)
    Product type
    axial impeller

    We will help you set up speed and automatic control

    We will advise how to adjust this fan's speed and how to switch or control it automatically according to room conditions – humidity, temperature or CO₂ concentration. We will select a suitable speed controller, thermostat, humidity or CO₂ sensor and explain how to connect them.

    Contact us: tel. +370 658 01033 or e-mail info@elsprendimai.eu

    In your e-mail, briefly describe the situation: room purpose and size, fan model and what you want to control – speed, humidity, temperature or CO₂.

    Wholesale quantities: special prices for larger orders. State the required quantity in your e-mail and we will send you an individual offer.

    Operating principle

    The axial impeller pushes air straight through the housing, so the fan simply fits between two 4″ hoses or ducts. It is designed to extract or supply air in enclosed spaces.

    Supply is 12 V DC from a battery or power supply. Switch it via a switch or relay and fit a fuse in the circuit as per the supplier's instructions.

    Why choose this fan?
    Strong ventilation without 230 V mains: up to 270 CFM from a 12 V system.

    Technical specifications

    Product type In-line duct fan
    Code ES-ISURE4
    Power supply 12 V DC
    Airflow 270 CFM (~459 m³/h)
    Duct diameter 4″ (100 mm)
    Impeller axial
    Housing plastic, with mounting base
    Mounting between 4″ hoses or ducts, on mounting base
    Country of origin China

    Main functions

    • 12 V DC – Powered from a battery system.
    • High airflow – Up to 270 CFM (~459 m³/h).
    • Direct installation – Between two 4″ (100 mm) hoses or ducts.
    • Compact – Mounting base for floor or wall.

    Where is it used?

    • Boat engine rooms and bilges
    • Campers and motorhomes
    • Technical cabinets and equipment bays
    • Off-grid systems with solar power
    • Small enclosed rooms

    Use by need

    For boat owners.
    Bilge and engine room ventilation.
    For installers.
    Simple fitting between hoses.
    For businesses.
    Ventilation where no 230 V is available.

    Practical application

    The stated 270 CFM is achieved at zero resistance. Keep hoses as short as possible and connect via a fuse and switch.

    Pros

    • 12 V DC supply
    • Up to 270 CFM
    • 4″ (100 mm) connections
    • Compact housing

    Cons / limitations

    • Airflow drops with long hoses
    • Use in explosive atmospheres only if confirmed by the supplier
    • Supplier does not state current or IP rating

    Safety and installation notes

    • Connection must be made by a qualified specialist
    • Fit overload protection in the supply circuit
    • Mount the fan on a solid base
    • Disconnect power before maintenance
    • Keep inlet and outlet unobstructed

    Quick selection guide

    270 CFM (~459 m³/h)
    12 V DC
    4″ (100 mm)
    axial impeller
    Suitable when you need:
    • ventilate a boat bilge or engine room
    • ventilate a camper or technical cabinet
    • run a fan without 230 V mains
    Check before use:
    • whether you have a 12 V DC supply
    • whether hoses/ducts are 4″ (100 mm)
    • whether the mounting location and air direction suit
    Important reminder: A fan works best when its airflow and pressure match the system resistance.

    FAQ

    Is it suitable for 24 V systems?
    No, the fan is designed for 12 V DC.
    Which hose diameter fits?
    4″ (100 mm) hoses or ducts.
    How is it switched?
    Via a switch or relay with a fuse in the 12 V circuit.

    ES-ISURE4 12 V in-line duct fan 4″ 270 CFM

    In-line duct fan ES-ISURE4: 12 V DC, 270 CFM (~459 m³/h), 4″ (100 mm).

    Illustrative image may have been created using AI. The appearance of the product may differ slightly from the image shown. Please refer to the technical specification.

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