136G8779

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The Danfoss 136G8779 is part of the MCD Soft Starters series and is designed as a chassis RVSS soft starter. It supports 3-phase input and output voltages of 230 or 480 VAC, delivering rated power of 60-75 HP at 230 VAC and 125-150 HP at 480 VAC. The device weighs 30.9 lbs and has dimensions of 19.49\" x 5.91\" x 7.21\".

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Product Description:

The 136G8779 is a VLT® Soft Starter designed by Danfoss to function as a total motor starting solution. It integrates Adaptive Acceleration Control (AAC) to provide smooth, dependable transitions from idle to full speed. This helps to reduce the strain on both the motor and the driven equipment. By ensuring stable starts and stops, the starter helps to extend equipment service life, improve process reliability and reduce downtime. This makes it well-suited for applications such as pumps, fans, compressors and conveyors. This starter comes with an internal bypass contactor that automatically engages once the motor reaches full speed.

The 136G8779 starter is rated for a current of 194 A, meaning it can reliably handle motors with high electrical demand during starting and running conditions. This high current capacity makes the soft starter suitable for medium to large industrial motors, ensuring dependable performance even under heavy load applications. It is designed to deliver a rated power output of 60 to 75 horsepower when connected to a 230 VAC supply, and 125 to 150 horsepower when connected to a 480 VAC supply. This flexibility allows the starter to support a wide range of motor sizes across different voltage levels. The soft starter ensures efficient operation of larger motors while maintaining reliable performance at lower voltages for smaller installations.

The 136G8779 is built in frame size 2, providing a compact physical footprint that makes it easier to integrate into control panels. Its classification as IP00 indicates that the device is not equipped with additional protective housing against contact or environmental factors. This requires it to be installed within a suitably designed cabinet that offers the required protection. Users can design custom protection and cooling arrangements based on their specific setup, allowing versatile integration into diverse environments.

Dimensions (l×w×h)
19.49 in x 5.91 in x 7.21 in
Horsepower Code
S2
Input Voltage
3-phase, 230 VAC or 480 VAC
Ip Rating
IP00
Max Operating Temperature
50°C
Output Voltage
3-phase, 230 VAC or 480 VAC
Rated Current
194 A
Rated Power (230 Vac)
60-75 HP
Rated Power (480 Vac)
125-150 HP
Type
Chassis RVSS (Soft Starter)
Weight
30.9 lbs

Frequently Asked Questions about 136G8779:

Q: Does the 136G8779 support three-phase operation?

A: Yes, the 136G8779 supports three-phase supply voltages from 200 to 525 V AC, making it compatible with a wide range of industrial power systems.

Q: What current rating does the 136G8779 provide?

A: The 136G8779 has a current rating of 194 A, allowing it to handle medium to large motors under demanding operating conditions while maintaining stable performance.

Q: What is the horsepower capacity of the 136G8779 at 230 VAC?

A: At 230 VAC, the 136G8779 delivers a rated power of 60 to 75 HP, making it suitable for moderate-sized applications such as pumps, fans, and conveyors.

Q: What is the horsepower capacity of the 136G8779 at 480 VAC?

A: At 480 VAC, the 136G8779 delivers between 125 and 150 HP, supporting larger industrial motors and ensuring efficient operation in heavy-duty systems.

Q: Does the 136G8779 come with an internal bypass contactor?

A: Yes, the 136G8779 includes an internal bypass contactor that reduces energy loss and heat generation, improving efficiency and eliminating the need for an external bypass.


Internal Product Review

  • ‘‘The 136G8779 is an exceptional soft starter for fixed-speed motors. Its smooth, consistent ramp-ups protect equipment and keep processes stable. However, the IP00 construction requires installation in a protective enclosure, adding cabinet design considerations.’’

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