VLT® Soft Start Controller MCD 100

  • Overview
  • Documents
  • Related applications

A compact and cost-effective soft starter

An extremely cost-effective and compact soft start controller that provides basic soft start and stop functionality and easy DIN rail mounting.

The ‘fit and forget’ semiconductor design simplifies installation and reduces required panel space, and selection can be made on the basis of the motor power. Timed voltage ramp up and down are possible. Ramp time can be individually and accurately adjusted with rotary switches from 0.4–10 seconds, and starting torque can be adjusted from 0–85% of the direct on-line torque.

Supply voltages and power range 

  • 3 x 208-600 V...0.1-11 kW (25 A)
  • 24-480 V AC or DC

Features and benefits

Panel space can be saved due to the compact size

Selection is simple and stock is kept to a minimum thanks to universal control voltage

Commissioning time and space are saved as a result of easy DIN rail mounting for sizes up to 30 kW

Reliable operation is ensured due to robust semiconductor design and an almost unlimited number of starts per hour without derating

No external cooling or oversizing is necessary thanks to the maximum ambient temperature of 50°C without derating


Type Name Language Valid for Updated Download File type
Brochure Danfoss Drives Product Overview English Multiple 20 Mar, 2019 1.7 MB PDF
Brochure DrivePro® Life Cycle Services English Multiple 28 Dec, 2018 2.5 MB PDF
Brochure Ecodesign - meet requirements English Multiple 01 Jun, 2020 1.1 MB PDF
Brochure Ecodesign flyer English Multiple 01 Nov, 2019 406.7 KB PDF
Brochure Energy efficiency - 3 questions English Multiple 10 May, 2016 253.6 KB PDF
Certificate ESMA ECAS Certificate E20-07-003509 English Multiple 01 Sep, 2020 843.2 KB PDF
Certificate ESU UA.1O078.C. 003-17 MCD 100/200/500 English Multiple 01 Sep, 2020 139.2 KB PDF
Certificate ISO 9001 Drives BV 500F1065en English Multiple 01 Jan, 2019 278.5 KB PDF
Certificate Manufacturers decl., aircraft shipping English Multiple 01 Dec, 2018 404.9 KB PDF
Certificate MCD 100 Declaration of conformity English Multiple 01 Nov, 2019 392.2 KB PDF
Certificate MCD 100 Declaration of conformity English Multiple 01 Feb, 2021 377.5 KB PDF
Certificate MCD 100 Declaration of conformity English Multiple 01 Oct, 2021 1.1 MB PDF
Brochure Motor technology - free choice English Multiple 10 May, 2016 877.6 KB PDF
Design guide VLT® Soft Starter MCD 100 English Multiple 18 Nov, 2011 1.8 MB PDF
Brochure VLT® Soft Starter Selection Guide English Multiple 01 Jan, 2021 1.3 MB PDF

Related applications

Scroll compressors or reciprocating compressors in air-conditioning units, conveyors, pumps, fans and mixers.