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  • New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA
    New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA 1
    New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA 2
    New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA 3
    New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA 4
    New item   -20.76€Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA 5

    Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA

    Code: MTVN1-010-NA
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  • Product description

    Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA

    MTVN1-010-NA – Sentera Controls potentiometer for an EC fan, supplied directly from the 230 VAC mains. The 0-10 VDC control signal is set with the knob; no separate power supply module is needed.

    Key idea:
    The potentiometer has no OFF position: when the knob is turned fully anticlockwise, a minimum signal close to 0 V remains – suitable where a minimum air flow must be maintained.
    Power supply
    230 VAC
    Output
    0-10 VDC
    OFF position
    None
    Protection
    IP44 / IP54

    Operating principle

    The potentiometer is connected directly to the 230 VAC mains, and the output signal – to the control input of an EC fan, actuator, AC controller or frequency inverter. No separate power supply module is needed.

    This is not a power controller: only the potentiometer's own supply and signal current flows through it; the fan motor current does not flow through it.

    The knob changes the output steplessly within 0-10 VDC. In the leftmost end position the signal remains minimal, close to 0 V but not equal to zero.

    Engineer's note: since the signal never reaches exactly 0 V, the fan's behaviour at the min. signal (stops or runs at min. speed) is determined by the settings of the EC fan itself.

    Benefits MTVN1-010-NA?
    Supply directly from the 230 VAC mains saves a 24 V power supply unit and additional wiring – the potentiometer is installed like a normal switch.

    Technical specifications

    Product type Potentiometer for an EC fan, supplied with 230 VAC
    Manufacturer / code Sentera Controls / MTVN1-010-NA
    Series MTVN1 (NA – 0-10 VDC without OFF, PM – with OFF, CP – with dry contact)
    Supply voltage 230 VAC
    Output signal 0-10 VDC
    OFF position None (min. signal close to 0 V)
    Terminals Screw-type, 2 rubber cable glands
    Installation Flush-mounted (standard European box) or surface-mounted
    Protection class IP44 flush-mounted / IP54 surface-mounted

    Main functions

    • Supply 230 VAC – no separate power supply unit – directly from the mains.
    • Stepless 0-10 VDC signal – the speed changes steplessly.
    • No OFF position – a minimum airflow is maintained.
    • UV-resistant enclosure – white plastic, protection against dust, splashes and impacts, IP44 / IP54.

    Where is it used?

    • Offices, shops, workspaces without 24 V automation
    • EC duct and roof fans
    • AC fans with Sentera EVS / MVS controllers
    • FI-E frequency inverters
    • Damper actuators

    On-demand operation

    For the electrician.
    Supply from the existing 230 VAC line – no power supply unit needed.
    For the ventilation installer.
    Suitable for EC fans, AC controllers and frequency inverters.
    For the user.
    A simple knob in the room.

    Application guide: how it is used in practice

    MTVN1-010-NA can be adapted to different sites – only what is connected to its output changes:

    Site What is connected Result Installer's note
    Office with an EC duct fan 230 VAC → L, N; signal → EC fan control input Manual ventilation control without a 24 V unit Route signal and mains cables separately
    AC fan with a Sentera EVS / MVS controller 0-10 VDC → controller analogue input Potentiometer in the room, controller in the control panel Signal GND – to the controller GND
    FI-E frequency inverter 0-10 VDC → inverter analogue input Manual three-phase fan speed setting Check the inverter input configuration

    How to select the controller current

    Rated current of the motor(s) Recommended model
    Continuous min. flow needed (no OFF), 0-10 VDC only MTVN1-010-NA (no OFF, 0-10 VDC) ← this model
    OFF and selectable 0-10 V / 0-20 mA / PWM needed MTVN1-010-PM (OFF, Vmin / Vmax)
    Dry contact and selectable signal needed MTVN1-010-CP (dry contact, Vmin / Vmax)
    Rule: The MTVN1 series is suitable when 230 VAC is available in the room but there is no 24 V supply. Choose as needed: only simple 0-10 VDC without OFF – NA; OFF and signal type selection needed – PM; dry contact needed – CP. Motor power has no influence on the selection.
    When to choose another solution: with Modbus RTU and 230 VAC supply – SPV-8 series (PM / CP / MF); with a display and stepped mode – RDCV9-AD; low DC voltage supplied – SDP-E0US or MTP series; for AC fans – EVS or MVS controllers controlled by this potentiometer.

    Pros

    • Simple 0-10 VDC signal
    • Continuous min. ventilation
    • Supplied directly from 230 VAC
    • Flush-mounted or surface-mounted installation
    • UV-resistant enclosure, IP44 / IP54

    Cons / limitations

    • No OFF position
    • 0-10 VDC only, no limit trimmers
    • The terminals carry 230 VAC: installation by a qualified electrician only
    • No Modbus RTU

    Safety and installation notes

    • Installation and connection must be carried out by a qualified electrician with the supply to all connected devices disconnected.
    • The terminals carry 230 VAC – connect only with the supply disconnected, observing electrical safety requirements.
    • Route signal cables separately from power cables.
    • IP54 is ensured only when the surface-mounted enclosure is correctly installed with seals.
    • Clean only with a damp cloth.

    Quick selection guide

    230 VAC
    0-10 VDC
    be OFF
    IP44 / IP54
    Suitable when you need:
    • control an EC fan when only 230 VAC is available;
    • control an AC controller or frequency inverter from the room;
    • maintain min. airflow.
    Check before use:
    • the input type of the controlled device (0-10 V, 0-20 mA or PWM);
    • whether an OFF position or a dry contact is needed;
    • whether Modbus is required – if so, the SPV-8 series.
    Important reminder: MTVN1-010-NA is a control signal source, not a power controller – the motor current does not flow through it.

    FAQ

    Is a 24 V power supply unit required?
    No, the potentiometer is supplied directly from 230 VAC.
    Does it have an OFF position?
    No – in the end position the signal is close to 0 V.
    Can it be used with a frequency inverter?
    Yes, Sentera specifies FI-E series frequency inverters.
    Does it have Modbus?
    No. For a 230 VAC potentiometer with Modbus RTU choose the SPV-8 series.

    Potentiometer for EC fan | Sentera Controls | MTVN1-010-NA

    Sentera MTVN1-010-NA – potentiometer for EC fans, 230 VAC supplied: 0-10 VDC output without OFF, IP44 / IP54.

    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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