038N0075

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The Danfoss 038N0075, part of the MCD Soft Starters series, operates with a mains voltage range of 3x200–525 VAC and offers IP21 protection. It features a rated current of 20A, a control supply voltage of 230 or 400 VAC, and a start/stop input type of 24 VDC at 8 mA. The device measures 530 x 132 x 270 mm.

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Product Description:

The 038N0075 motor controller is designed for reliable motor control, and the controller enables precise motor operation with adjustable torque and control functions. Danfoss manufactured it under the Cl-tronic line, and its design incorporates aspects that meet operating efficiency and protection criteria. The controller maintains constant operation within the specified input and output voltage ranges.

The 038N0075 motor controller accepts an input voltage of 24-480V AC/DC and offers the same range as the output voltage. The controller has a current rating of 3.5A as stipulated by the AC-53b classification. The relay trip parameters range from 3.5A to 4-10A with 110V. The controller has adjustable ramp-up and ramp-down torque settings, allowing fine control of motor acceleration and deceleration. The control voltage should be more than or equivalent to 24V-480V AC/DC. The highest fuse rating is 25A for protection. The overload relay is designated as Type 10, which provides protection under specific conditions. Furthermore, the installation instructions are supplied in order to assist you in correctly assembling the components. Within the MCI 3 motor controller, these specifications serve as the technical basis.

The 038N0075 motor controller includes advanced functions to ensure smooth motor running. The controller has a Kick Start function that adds torque for beginning large loads and adjustable torque control to meet application requirements. The MCI 3 controller supports motor supply line voltage up to 600 V AC at 50/60 Hz, ensuring compatibility with standard industrial power systems. An integrated bypass reduces heat dissipation once the motor reaches maximum speed. The controller also provides relay outputs for signaling, trip, or bypass status, as well as reliable connections via main (L1/L, L2, L3), control (A1, A2), and relay terminals (21/11, 41/12, 61/13).

Control Supply Voltage
230 VAC (+10%/-15%) or 400 VAC (+10%/-15%)
Current Rating
3.5A (AC-53b), 4-10A
Degree Of Protection
IP21
Dimensions (h X W X D)
530 x 132 x 270 mm
Input Voltage
24-480V AC/DC
Mains Voltage
3 x 200–525 VAC
Max Fuse Rating
25A
Maximum Voltage
525 VAC
Output Voltage
24-480V AC/DC
Overload Trip Point
105% (motor thermal model)
Rated Current
20 A (AC53a 3-30:50-10)
Rated Insulation Voltage
2 kV (line to earth), 1 kV (line to line)
Relay Output Rating
5 A @ 250 VAC, 5 A @ 30 VDC resistive
Standards Compliance
IEC 60947-4-2, UL508, CSA 22.2 No. 14
Start/stop Input Type
24 VDC, 8 mA

Frequently Asked Questions about 038N0075:

Q: Why does 038N0075 MCI 3 have adjustable ramp-up settings?

A: The adjustable ramp-up allows controlled acceleration that reduces stress on motors. It ensures smoother starts that extend motor life and support consistent performance under defined operating ranges.

Q: How does 038N0075 MCI 3 handle overload protection?

A: The motor controller includes a Type 10 overload relay. This protects against excess current that can cause damage, ensuring secure operation within the rated current values.

Q: Why does 038N0075 MCI 3 require 24-480V AC/DC input?

A: The wide input voltage range allows compatibility with different supply systems. It ensures flexibility in installation and supports multiple operational environments without limiting voltage requirements.

Q: How do 038N0075 relay trip settings improve motor safety?

A: Relay trip settings operate at 3.5A with a 4-10A range. They provide targeted protection that prevents faults, reducing the risk of motor failure under load.

Q: Does 038N0075 MCI 3 support consistent output voltage delivery?

A: Yes, the controller delivers an output range of 24-480V AC/DC. This ensures stable motor function and aligns with the wide input compatibility of the product.


Internal Product Review

  • ‘‘The 038N0075 MCI 3 motor controller ensures stable performance with adjustable ramp-up and ramp-down torque. Danfoss Cl-tronic design provides 24-480V AC/DC compatibility. It includes a 25A fuse rating and clear mounting instructions that guarantee safe installation with defined protection.’’

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