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  • New item   -19.84€Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC
    New item   -19.84€Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC 1
    New item   -19.84€Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC 2
    New item   -19.84€Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC 3

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC

    Code: MTPND010-DC
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  • Product description

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC

    MTPND010-DC – Sentera Controls potentiometer for EC fans with an additional (dry) contact, supplied with 3–15 VDC. The 0-10 V control signal is changed with the knob, and the Vmin and Vmax limits are set with internal trimmers.

    Key idea:
    The potentiometer has no OFF position: when the knob is turned fully, the set minimum signal remains – the fan runs at least at min. speed. The auxiliary dry contact is intended, e.g., for activating a frequency inverter.
    Power supply
    3–15 VDC
    Output
    0-10 V
    Auxiliary contact
    Dry contact (e.g. for a frequency inverter)
    Protection
    IP44 / IP54

    Operating principle

    The potentiometer is installed in a living or working room, while the controlled EC fan, controller or frequency inverter is in a technical room or control panel. A 3–15 VDC supply and the 0-10 V output signal are connected, and the dry contact – into the start circuit of the inverter or other device.

    This is not a power controller – it only generates a control signal, and the speed is changed by the EC motor or controller itself.

    Vmin is set within 10–70 % and Vmax within 30–100 % of the supply voltage with internal trimmers. To access them, remove the knob, unscrew the nut and remove the front cover.

    Engineer's note: since there is no OFF position, the min. signal never reaches 0 V – set Vmin deliberately, according to the min. required air volume.

    Benefits MTPND010-DC?
    A compact, low-cost manual control solution for EC fans, AC controllers and frequency inverters with a 0-10 V input. The contact allows the inverter to be started at the same time.

    Technical specifications

    Product type Potentiometer for an EC fan
    Manufacturer / code Sentera Controls / MTPND010-DC
    Supply voltage 3–15 VDC
    Output signal 0-10 V
    Vmin (internal trimmer) 10–70 % of supply voltage
    Vmax (internal trimmer) 30–100 % of supply voltage
    OFF position None
    Auxiliary contact Dry contact (e.g. to enable a frequency inverter)
    Terminals Screw-type, 2 cable glands
    Installation Flush-mounted (standard European box) or surface-mounted
    Protection class IP44 flush-mounted / IP54 surface-mounted

    Main functions

    • Stepless 0-10 V signal – the speed changes steplessly.
    • Vmin / Vmax trimmers – speed limits are adapted to the specific site.
    • No OFF position – the fan always runs at least at min. speed.
    • Dry contact – remote enabling of a frequency inverter or other device.
    • Universal enclosure – suitable for masonry, plasterboard and timber walls, IP44 / IP54.

    Where is it used?

    • Apartments and houses with EC fans
    • Offices and workspaces
    • AC fans with Sentera EVS / MVS controllers
    • Fans with FI-E frequency inverters
    • Damper actuators

    On-demand operation

    For the installer.
    Fits a standard European flush-mounted box – quick installation.
    For the designer.
    One potentiometer for EC, AC controllers and frequency inverters.
    For the user.
    Simple graduated knob, speed increases when turned clockwise.

    Application guide: how it is used in practice

    MTPND010-DC can be adapted to different sites – only what is connected to its output changes:

    Site What is connected Result Installer's note
    Apartment or house with an EC fan 0-10 V output → EC fan control input Manual stepless ventilation control Potentiometer in a living room, fan in a technical room
    AC fan with a Sentera EVS / MVS controller 0-10 V → controller analogue input Controller in the control panel, control in the room Connect the signal GND to the controller GND
    FI-E series frequency inverter 0-10 V → analogue input; dry contact → inverter start (RUN) input The inverter is started and controlled with a single potentiometer Check the contact load limit in the datasheet
    Damper with a proportional actuator 0-10 V → actuator control input Manual damper position setting The actuator must accept a 0-10 V signal

    How to select the controller current

    Rated current of the motor(s) Recommended model
    OFF position needed, supply 24 VAC / DC MTPNG010-AT (OFF, 0-10 VDC)
    Continuous min. signal needed (no OFF), 3–15 VDC MTPND010-BT (no OFF, 0-10 V)
    Auxiliary contact needed (e.g. to start a frequency inverter) MTPND010-DC (no OFF, dry contact) ← this model
    Supply from the EC fan needed, 10 kΩ, with OFF MTPNX10K-NA (10 kΩ, OFF, dry contact)
    Rule: choose according to your needs and the available supply: OFF needed – MTPNG010-AT (24 VAC / DC); constant min. signal – MTPND010-BT; additional contact – MTPND010-DC; supply from the EC fan – MTPNX10K-NA. Motor power has no influence on the selection.
    When to choose another solution: with 0-20 mA / PWM output and trimmers – SDP-E0US series; with Modbus RTU – SDP-M010 or SPV-8 series; for 230 VAC supply – MTVN1 series; for AC fans – electronic EVS or MVS controllers controlled by this potentiometer.

    Pros

    • Auxiliary dry contact
    • Stepless 0-10 V signal
    • Vmin / Vmax limits
    • Continuous min. ventilation
    • Flush-mounted or surface-mounted installation

    Cons / limitations

    • No OFF position
    • A 3–15 VDC supply is required
    • Trimmers are accessible only after removing the cover
    • No Modbus, 0-20 mA or PWM output
    • The dry contact load limit is not stated on the product page

    Safety and installation notes

    • Installation and connection must be carried out by a qualified electrician with the supply to all connected devices disconnected.
    • Supply – only 3–15 VDC; connecting mains voltage is prohibited.
    • Before connecting, check the input type of the controlled device (0-10 V).
    • Clean only with a damp cloth.

    Quick selection guide

    3–15 VDC
    0-10 V
    be OFF
    IP44 / IP54
    dry contact
    Suitable when you need:
    • control an EC fan manually with a 0-10 V signal;
    • ensure constant min. ventilation;
    • start a frequency inverter at the same time via the dry contact.
    Check before use:
    • the available 3–15 VDC supply;
    • the 0-10 V input of the controlled device;
    • whether an OFF position is needed – if so, MTPNG010-AT.
    Important reminder: MTPND010-DC is a control signal source, not a power controller – the motor current does not flow through it.

    FAQ

    Does it have an OFF position?
    No. When the knob is turned fully, the set min. signal remains.
    Where are the trimmers?
    Under the front cover: remove the knob, unscrew the nut and remove the cover.
    Is it suitable for a frequency inverter?
    Yes, Sentera specifies FI-E series frequency inverters. The inverter can also be enabled via the dry contact.
    Can it be powered from 24 VDC?
    No – the specified supply is 3–15 VDC; for 24 VAC / DC choose MTPNG010-AT.

    Potentiometer for EC fan with auxiliary contact | Sentera Controls | MTPND010-DC

    Sentera MTPND010-DC – potentiometer for EC fans with an additional contact: 3–15 VDC supply, 0-10 V output, Vmin / Vmax trimmers, no OFF position, 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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