Otis Gen2 is a series of current machine room less and machine room traction elevator products of Otis. It was first introduced in 2000 and used for new installation, existing buildings, or modernizations.

In March 14, 2016, Otis announced the new version of the Gen2 system[2].


The Otis Gen2 system replaces conventional steel ropes with coated steel belts. The unique, patented (US patent: 7971687[3]) flat-belt drive technology virtually eliminates vibration, providing passengers and tenants a remarkably smooth, quiet ride and improved overall comfort. The system uses gearless permanent magnet synchronous motor with smaller sheave, which allows for a machine that is 70% smaller and up to 50% more efficient than conventional geared machines. The Gen2 elevator has a device called PULSE (Resistance Based Inspection, RBI, US patent: 20130207668[4]), which monitors the belts status 24 hours and alerts the elevator technicians when a tear or damage occurs.

It is also an energy efficient system, which saves energy up to 50% than conventional systems. In addition, the Gen2 system’s flat, polyurethane-coated steel belts and gearless machine do not require any additional lubrication, making the system cleaner for the environment, and reduce the risk of oil spills and fire.

Gen2 elevators are equipped with ReGen drive since the 2010s, a regenerative which feeds generated energy back into the building's grid where it can be used for other electrical devices such as lightings, air conditioners, etc. The amount of energy saved by ReGen depends on the car load, speed, length of run, traffic pattern and system efficiency.

Gen2 elevators can be called from an app (OTIS eCall) by nearby visitors of a building. (About eCall)


These specifications may or may not apply outside of the United States & Canada, or older Gen2 installations.

  • Gearless traction
  • Machine room less
  • Serves up to 28 floors.
  • 300 ft. travel distance (290 ft. travel distance for California).
  • 150-500 FPM.
  • 2100-5000 lbs. capacities.
  • Otis Compass destination dispatch system as an option.


Besides the standard Gen2 model sold in the United States and Canada, there are several different versions of Gen2 elevators sold in other countries. Some of these models may not sold in certain countries.

Gen2 Comfort

This is a low scale version for low to mid-rise buildings. It is sold in Europe and Asia Pacific (manufactured in China). The differences between the European and Asian version are the elevator aesthetics/car designs and fixtures. The European version has three aesthetics model; Optima, Selecta, and Lumina. Both Optima and Selecta has two LED lightings on the car station. Lumina does not have LED lightings on the car stations, instead they are located on the ceiling. The fixtures used are the Otis 2000 ones with either blue LCD or yellow Electroluminescent Display floor indicators.

Specs (European version):

  • Machine room less with permanent magnet synchronous motor
  • ReGen drive with closed loop vector control
  • 320/450/480/630/900/1000 kg capacities
  • 1 m/s speed
  • 45 m travel distance
  • Serves up to 14 floors
  • Up to 3 cars in a group
  • One or two entrances
  • Center or telescopic opening doors

The Asian version design is heavily based on Otis 3200 with an almost identical aesthetics and fixtures. This version, unlike the European one, does not have ReGen drive as this is actually an older model. This model might have been discontinued for the most parts of Asia.

Specs (Asian version):

  • Machine room less with permanent magnet synchronous motor
  • 630/750/800/900/1000 kg capacities
  • 1/1.6/1.75 m/s speeds
  • Serves up to 14 floors
  • Up to (possibly) 3 cars in a group
  • One or two entrances
  • Center or telescopic opening doors

Gen2 Premier

This is a mid to large scale version which is almost identical to Gen2 Comfort, and also sold in Europe and Asia (manufactured in China). The aesthetics and fixtures used are pretty much the same as the ones in Gen2 Comfort, but the European version has another one aesthetic design; Panorama, which is a scenic elevator cab.

The Asian version of Gen2 Premier might have been discontinued for the most parts of Asia. There is also a machine room version of Gen2 Premier which is only sold in Russia and CIS countries.


  • Machine room less (or machine room only for Russian version) with permanent magnet synchronous motor
  • ReGen drive (except the Asian version which is actually an older model)
  • Capacities:
    • 630/800/1000/1275/1600/1800/2000/2500 kg (European)
    • 630/800/1000/1150/1275/1350/1600 kg (Asian)
    • 400/630/1000 kg (Russian)
  • Speeds
    • 1/1.6/1.75/2/2.5 m/s (European)
    • 1/1.6/1.75 m/s (Asian)
    • 1/1.6 m/s (Russian)
  • Maximum number of floors:
    • 24 floors (European version)
    • 21 floors (Asian version)
    • 30 floors (Russian version)
  • Maximum rise:
    • 120 meters (European version)
    • 75 meters (Asian version)
    • 90 meters (Russian version)
  • Up to 5 cars in group, unknown for Asian version, 8 cars in group for Russian version
  • One or two entrances
  • Center or telescopic opening doors

Gen2 Flex

Gen2 Flex is a small scale, new installation solutions for existing buildings, regardless of age. This version has a much smaller capacity and because of that, it can be installed in narrow/limited spaces. The maximum number of capacity is 630 kg. The position of counterweight can be on the side or rear. Gen2 Flex is only available in Europe.


  • Machine room less with permanent magnet synchronous motor
  • Otis OVC variable frequency drive with closed loop vector control
  • 180-630 kg capacities
  • 1 m/s speed
  • 45 m maximum rise
  • Serves up to 16 floors
  • Up to 2 cars in a group
  • One or two (either opposite or 90° angle) entrances
  • Manual, center or telescopic (two, three or four panel) opening doors

Gen2 Lux

Gen2 Lux is a mid to high-rise version for commercial and residential buildings.


  • Machine room less with permanent magnet synchronous motor
  • 800-1600 kg capacities
  • Up to 2.5 meters per second speeds
  • Serves up to 32 floors

Gen2 Focus2

This is a low to mid-rise version only sold in Australia (and possibly New Zealand as well), applicable for residential and commercial buildings.


  • Machine room less with permanent magnet synchronous motor
  • ReGen drive
  • 630/800/1000/1050/1275 kg capacities
  • 1/1.6/1.75 m speeds
  • 40/75 m maximum rise
  • Serves up to 21 floors
  • One or two entrances
  • Center or telescopic opening doors


Main article: Otis Gen2-Regen

GeN2-Regen is the newest and current version of Gen2 sold in most countries, excluding North America. This model is manufactured in China and also manufactured by Xizi Otis (or Otis Electric Elevator since 2017), Otis's largest subsidiary. This version can be easily recognized by its LCD-TFT floor indicators and buttons (usually round concave) with blue illumination.

Gen2 Dynamic

This version is only sold in South Korea, manufactured by Otis Elevator Korea in Changwon, South Korea. Gen2 Dynamic comes in both machine room less (MRL) and mini machine room (MRE).


  • Machine room less with permanent magnet synchronous motor
  • ReGen drive
  • 550-1600 kg capacities
  • Up to 105 m/min speeds
  • Center opening or two speeds telescopic side opening doors


Besides machine room less, Gen2 also comes with a smaller machine room above the elevator shaft, called Gen2-MR. It uses the same equipment as the MRL ones[5].

Gen2 Switch

In 2013, Otis launched a new residential Gen2 elevator that eliminates the need for three phase power, is solar-power capable, and uses battery technology to continue to run when the power goes out. The Gen2 Switch elevator will be available globally through Otis operating units in a phased roll‑out in developed and emerging markets, including: Europe, India, South East Asia, and Central and South America.

The procedure to make the elevator run is to plug it into a regular electrical outlet, literally. Instead of running on 3-phase power (basically, 3 separate lines of 120V/220V power), it runs on 1 phase, which is what you would find at any standard electrical outlet.

The advantage of having an elevator that uses only 1-phase power is that it's easier to run the elevator on a battery, which is the main selling point of the system. If the power fails, the elevator won't go into a low-power state and shut down, it will continue to run normally, as if the power has not gone out at all. It also means that it opens up the door for solar-powered elevator systems and it also means that the passenger will never get stuck in the elevator when the power goes out.


  • Machine room less with permanent magnet synchronous motor
  • ReGen drive
  • 320-630 kg capacities
  • 0.63 or 1 m/s speed
  • Serves up to 7 floors, with 21 meters or maximum rise
  • Single or double entrances
  • Two speed telescopic side opening doors
  • Up to 2 elevators in a group
  • Simple automatic or down collective operation
  • MCS 220 controller

Gen2 Life

Gen2 Life is the latest series of the Gen2 family introduced by Otis in 2016-2017. It is targeted for low to mid-rise residential and commercial buildings. The South Korean version (Sigma GR1, GPR or ACD-4) also comes in machine room (MR).

Specs (Europe):

  • Machine room less with gearless synchronous permanent magnet motor.
  • 2:1 roping configuration.
  • GCS220 microprocessor.
  • 320, 450, 480, 500, 630, 1000, 1020 kg capacities (or 4, 6, 8, 13 persons)
  • 1 or 1.6 m/s speed.
  • 45 m of maximum rise.
  • Serves up to 14 floors.
  • Up to 3 elevators in a group.
  • Center opening or two speed telescopic opening door.
  • Can have two entrances.

Specs (South Korea):

  • Machine room less or mini machine room, with gearless synchronous permanent magnet motor.
  • 550-2000 kg capacities (or 8-30 persons)
  • 1 / 1.5 / 1.75 / 2 / 2.5 m/s speed.
  • Center opening door.

Other versions

  • Gen2 Mod (for modernizations)
  • Gen2 Prestige
  • Gen2 R, P and B (only sold in Japan)
  • Gen2 L-Series[6]
  • Gen2 PURE EDITION (sold in France)
  • Gen2 Nova (only sold in India)
  • Gen2 Stream (available in fall 2016)
  • Gen2 Care (bed elevator, available in fall 2016)
  • Gen2 Carry / Robusta (freight elevator, available in fall 2016)
  • MUSE and MUSE NV (Gen2 version of Sigma Elevator Company for countries other than South Korea)
  • Otis Express (manufactured in the United Kingdom)
  • Gen2 Express (only sold in Russia)
  • Genesis (cost effective low-rise elevator, similar to Kone EcoSpace or Schindler 3100)
  • Trivium (sold by Eguren Kone Ascensores and Ascensores Montes Tallon in Spain)

Notable Gen2 installations

Main article: List of notable Otis Gen2 elevator installations
For the Otis's Gen2 installed under Sigma's name, Please refer to Sigma Muse (elevator).


  • The Gen2 version of Sigma/Otis Elevator Korea is called Muse before 2013 and then Muse NV from 2013 onwards[7].
  • The Gen2 elevator is also manufactured by Xizi Otis.
  • Eguren Kone and Montes Tallon of Spain also sells Gen2 elevators under the name Trivium. Both companies are Otis's subsidiaries in Spain.
  • There are many variations of fixtures used in Gen2 elevators:
    • In the U.S., Gen2 elevators are using Series 1 (very rarely)[8], Series 4, Series 5, quite rarely Series 6 and often Newer Series 2/4 fixtures, other fixtures as an option.
    • In Europe and Mexico, Gen2 elevators are using 2000 fixtures.
    • In Asia (Except Japan), Australia and New Zealand, some early Gen2 elevators are also using the 2000 series (later changed to 3200 series), but newer elevators in South East Asia (2010 onwards) are using fixtures which bears a close resemblance to the 2000 fixtures. In Hong Kong and Singapore, Gen2 elevators are usually using Dewhurst or Everbright for their fixtures.
      • In the elevators additionally installed in the footbridge in Hong Kong, China since 2015. There's almost no appearance difference between Otis Gen2[9] and Sigma Muse NV[10][11].
        • The only two difference are:
          • Overloaded indicator is combined in the floor indicator, while Sigma's ones using Dewhurst UL200 Hidden Legend indicator instead.
          • If the elevator have two sets of doors, they just play the travelling directions message when the elevator moving (Sigma moved those to after the floor announcement being played), while Sigma's ones will play "The opposite side door will open" message instead, it supplied by Tonic Electronic Engineering.
    • In Japan, some early Gen2 elevators are using fixtures with gray buttons or (rarely) concave buttons and LED segments, but newer elevators are using fixtures which buttons are similar to Mitsubishi and LED segments or dot matrix indicator.
  • The Otis Gen2 elevator is the fastest selling product in Otis' 160 year+ history.
  • In North America, the Otis Gen2 drive-system is located at in the middle at the top of the shaft while in Europe and Asia, the drive-systems are on the side at the top.
  • Otis filled a lawsuit to Schindler Group for the production of its Suspension Traction Media, due to its similarity with Otis's coated steel belts. However, they have signed an agreement to settle that case in 2014[12].



Motors and controllers



Notes and references

External links

Links to websites


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