Siemens SINAMICS PERFECT HARMONY GH180 drives Uptime. All the time.

Siemens SINAMICS PERFECT HARMONY GH180 drives Uptime. All the time.

Uptime. All the time.

Siemens SINAMICS PERFECT HARMONY GH180 drives

Answers for industry.

https://www.robiconperfectharmony.com/

2

And because reliability is a paramount concern for today’s 

manufacturers, Siemens equipped the SINAMICS Perfect 

Harmony drive with 50+ patented technologies proven to 

increase the dependability of critical processes. The drive’s 

modularity provides a scalable solution that achieves 

near-100 percent reliability and 99.99 percent availability, 

resulting in a significantly reduced total cost of ownership 

over the drive’s lifecycle. A series cell configuration even 

allows the drive to withstand failures that would overwhelm 

conventional drives and shut down the plant process. 

As the demand for power and raw materials continues to 

grow, U.S. manufacturers are faced with an increasing 

number of operational challenges. For some, it’s the remote 

location of their plants; others have harsh environments to 

consider. But although operating conditions are never 

perfect, your process has to be—because in today’s 

competitive market, downtime is not an option. That’s 

why there’s SINAMICS PERFECT HARMONY.

Every element of a SINAMICS Perfect Harmony GH180 drive 

is engineered to maximize productivity and protect your 

process in a way that other drives can’t. Designed in both 

liquid-cooled and compact air-cooled configurations, 

SINAMICS Perfect Harmony medium voltage variable 

frequency drives (VFDs) deliver superior versatility, efficiency 

and process availability for the most demanding applications. 

The perfect solution 

for imperfect conditions.

The SINAMICS Perfect Harmony medium voltage VFD draws 

on more than 50 years of industry experience and more than 

17 years of testing and refinement to deliver unsurpassed 

reliability for critical applications. Its proven performance in 

demanding processes has led it to become the only drive 

today approved for nuclear applications. 

Industry demands increasingly require flexible, scalable 

drive solutions that are not only safe and efficient, but also 

application-specific. That’s why the SINAMICS drive 

family—the world’s largest line of precision-engineered 

drives—offers a full portfolio of integrated solutions that 

can reduce power costs by 20 to 70 percent while increasing 

your productivity and sharpening your competitive edge. 

From kiln drives and vertical ball mills to mud pumps and 

extruders, any application can be paired or retrofitted with a 

SINAMICS Perfect Harmony drive to optimize process 

improvement. It’s the No. 1 selling drive in the world—

with more than 10,000 drives sold—because it’s the 

most trusted.

The #1 selling 

drive in the world

SINAMICS PERFECT 

HARMONY is:

• Highly reliable 

Provides fault tolerance via 

cell redundancy and Advanced 

Cell Bypass

• Energy-efficient 

Increases process control to improve 

throughput and reduce energy waste

• Line-friendly 

Achieves a near-unity power factor 

by eliminating harmonic voltage 

and current distortion

• Motor-friendly 

Eliminates harmonic heating 

and insulation stress

• Load-friendly 

Eliminates significant torque 

pulsations

• Process-focused 

Prevents system shutdown by 

proactively warning the operator 

of any issues

3

Reliability backed by proven technology

Mine achieves output predictability 

with SINAMICS Perfect Harmony

From variable output to high torque demands at startup, mines 

face a number of unique challenges that require specialized 

solutions. That’s why, when a major copper and molybdenum 

mine was looking to optimize the ball mill application in its 

multimillion-dollar expansion, it turned to Siemens.

The mine chose SINAMICS Perfect Harmony VFDs based 

on their reliability and ability to:

• Apply enough starting torque with a loaded ball mill

• Operate the motor over the required speed range 

without introducing harmonics 

• Ensure the application’s uptime and availability with 

Advanced Cell Bypass

SINAMICS Perfect Harmony achieved continuous uptime in the 

vertical ball mill application, resulting in a high profit margin.

The mine has since installed the drive on three other 

applications. They expect the new drives to deliver an equally 

high level of uptime and throughput.

SINAMICS PERFECT HARMONY GH180 VFDs are the only 

drives available today with Advanced Cell Bypass, a 

technology that allows the drive to maintain consistent 

power even in the event of a cell fault. Should a disturbance 

occur, integrated Process-Tolerant Protection Strategy 

(ProToPS™) technology provides a hierarchical system of 

warnings that give your operator ample time to evaluate the 

issue and respond appropriately to avoid system shutdown. 

When starting multiple motors and transferring them across 

the line, closed-loop synchronous transfer protects against 

unnecessary wear and tear.

Siemens optimized the SINAMICS Perfect Harmony GH180 

drives’ fully integrated VFD systems for easy access to all 

components, so drive maintenance is simplified and 

downtime is limited. Each drive includes an integrated 

isolation transformer, power electronics, controls and a 

cooling system that can tolerate ambient temperatures from 

-40° C to +50° C. Designed for longevity, the drive cabinets 

are constructed to meet the most stringent industrial 

requirements and withstand the harshest weather 

conditions.

5 5 N 5 5 N

95˚

132.5˚ 132.5˚

Shown here is the output of a 

15-cell drive with two failed 

cells in phase A. Although 87% 

of the cells are still functional, 

without Advanced Cell Bypass 

the output voltage becomes 

imbalanced.

In this figure, Advanced Cell 

Bypass isolates the two failed 

cells in phase A and adjusts the 

phase angles accordingly. As a 

result, the drive is able to produce 

a balanced output at 80% of the 

original voltage.

4

Synchronous Transfer

Synchronous transfer is used to soft-start multiple motors in 

a series and efficiently transfer them across the line without 

stressing the power grid. This closed-transfer approach not 

only increases energy efficiency—it also helps protect 

motors and equipment from excessive torque transients. 

Process-Tolerant Protection Strategy (ProToPS™)

With a proven record of 99.99 percent process uptime, 

ProToPS™ protects your process from faulty sensors or data. 

Unlike typical systems that simply trip the drive and 

automatically shut down the system due to a malfunction, 

ProToPS™ offers a proactive control strategy for applications 

where failure avoidance is critical.

Environmental Tolerance

Only SINAMICS Perfect Harmony drives are engineered to 

operate reliably in environments with ambient temperatures 

ranging from -40° C to +50° C. No other drive can tolerate 

such a broad range of extreme conditions. An optional PDC 

allows the drive to withstand even the harshest outdoor 

conditions, from tropical environments to ocean platforms. 

Motor

voltage

Ch 1

Ch 3

4.00 V Ch 1 3.60 V

5.00 V

5.00 V

4.00 V

Ch 4 Zoom: 0.5x Vert 1.0x Horz

Ch 2 M 100 ms

Ch 4

Stop: 500 S/s 4 Acqs

[ T ]

Drive

current

Fault cell

bypassed and

motor torque

produced less

than 450 mse

after fault

Cell fault

Siemens system boosts well 

safety and productivity

Explosion hazards and gas flow fluctuations can make it 

difficult for oil and gas producers to achieve maximum 

process reliability. When an international producer needed to 

replace three 35-year-old compressors, Siemens was the only 

bidder to offer an explosion-proof integrated drive system.

The system Siemens delivered surpassed the original 

operating and efficiency guarantees, and the integrated 

SINAMICS Perfect Harmony drives provided quiet, reliable 

operation with the clean output necessary for an explosion￾proof application. The well is expected to soon return to the 

productivity and efficiency levels of earlier days.

“It was a team effort,” said the equipment engineer at the oil 

and gas company. “I’ve been around the block for many 

years, and this is the only company that builds motors to 

custom specifications. They delivered what they promised.”

The benefits of built-in reliability

Advanced Cell Bypass

In less than a quarter of a second, the SINAMICS Perfect 

Harmony GH180 drive can bypass multiple failed cells to 

maintain a balanced output voltage. With one cell in bypass, 

the drive still produces sufficient voltage to allow the 

process to continue uninterrupted, and the quality of the 

voltage and the waveform remain virtually unchanged. 

5

Different

by design

Traditional drives often require up to five 

additional components: harmonic filter, 

power factor corrector, transformer, power 

converter and motor filter. But the SINAMICS 

PERFECT HARMONY drive is far from 

traditional. 

The only major components required by its 

integrated system are a topology isolation 

transformer and a power converter. It 

doesn’t even need external power factor 

correction capacitors to exceed 0.95 power 

factor at normal operating speeds. The 

drive’s all-in-one design allows for quick and 

easy drive installations, thereby reducing 

costs and process downtime while 

increasing project flexibility. 

Fully integrated 

solutions

Based on the world’s most comprehensive range of drive 

products, Siemens Integrated Drive Systems (IDS) address 

the increasingly complex challenges of drive technology by 

providing a single source for your entire drive system—drive, 

motor, gearbox and couplings. This not only simplifies 

specification, purchase, implementation, operation and 

maintenance, but also increases your drive system’s overall 

reliability with integrated design efficiencies.

Each component is engineered for optimal compatibility and 

performance, and upon delivery the IDS is installed directly 

onto the equipment—saving you a significant amount of 

time in project startup. Every aspect of the IDS is designed to 

your specifications, including custom service contracts and 

extended warranty options that reinforce the lifetime 

reliability of your system.

6

Advantages of an 

Integrated Drive System:

Reliability

• Improved operating times

• Faster supply of new and 

replacement components

• Condition monitoring 

• CAPEX security

Productivity

• Higher throughput 

• Reduced engineering effort

• High degree of flexibility

• Shorter time to market

Efficiency

• More energy-efficient

• Simplified maintenance

• Better environmental protection

• Reduced OPEX

7

8

The SINAMICS PERFECT HARMONY drive meets the most 

stringent harmonic requirements for voltage and current 

distortion to protect other online equipment from harmonic 

disturbance. Even at low speeds, the drive operates 

smoothly, without inducing any significant torque 

pulsations—thus eliminating the need for costly couplings.

Clean Power Input

SINAMICS Perfect Harmony drives meet the most stringent 

IEEE 519-1992 requirements for voltage and current 

harmonic distortion. An integrated sinusoidal converter not 

only eliminates the need for harmonic filters, power factor 

correction capacitors or extra bus capacity; it also protects 

other online equipment from harmonic disturbances. 

High-Quality Output

No drive offers a higher-quality waveform output than the 

SINAMICS Perfect Harmony. Its design accommodates any 

standard motor without requiring additional output or dv / dt 

filters—which can reduce efficiency and reliability—and it 

provides the lowest peak voltage to the motor windings to 

help extend motor life.

Power that 

protects 

your process

Clean Power Input

Power Quality Output

Output waveforms at 100% speed

Output waveforms at 50% speed

18-pulse, multilevel PWM

Motor current

Motor voltage

Motor current

Motor voltage

Source current

Source voltage

integrated into the drive itself helps further 

limit downtime by allowing you to safely 

monitor drive speeds and stop a drive 

without disconnecting the power.

Any VFD will improve control over your 

process, but only SINAMICS Perfect Harmony 

drives will optimize the control you have. 

With 50+ patented technologies proven to 

increase reliability and reduce energy 

consumption, SINAMICS Perfect Harmony is 

designed to boost productivity while 

lowering your total cost of ownership. 

Improve your process, your production and 

your bottom line with SINAMICS Perfect 

Harmony.

Precision-engineered drive technology is 

what established Siemens as a world-class 

leader in reliability, but it takes an 

unwavering dedication to safety and 

lifecycle support to maintain this distinction. 

SINAMICS Perfect Harmony drives are 

designed for a 20-year lifetime, and Siemens 

offers the support to match—before, 

during and after installation. 

From quoting and commissioning to field 

service and live call center assistance, 

experienced medium voltage drive 

technicians are available around the clock to 

personally ensure your drive’s continued 

reliability. Fast-response safety technology 

When uptime is everything,

everything has to be perfect.

9

10

SINAMICS PERFECT HARMONY

GH180 drive specifications

No. of 

cells

Output 

current

Type 

rating

Shaft output** kVA Cooling 

method

Height* Width* Depth* Order number (MLFB)***

A kVA kW Hp in. mm in. mm in. mm

Motor voltage—3.3 kV

9 40 225 189 254 300 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]A33-0[][]0

9 70 400 331 444 450 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]B34-5[][]0

9 100 570 473 635 700 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]C37-0[][]0

9 140 800 662 888 900 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]D38-7[][]0

9 200 1,140 970 1,301 1,500 Forced-air 119.5 3,036 82 2,083 45 1,143 6SR4[]02-0[]E41-5[][]0

9 260 1,485 1,261 1,691 1,750 Forced-air 119.5 3,036 82 2,083 45 1,143 6SR4[]02-0[]F41-7[][]0

9 315 1,800 1,527 2,047 2,250 Forced-air 117 2,972 172 4,369 50 1,270 6SR3[]02-1[]G42-2[][]0

9 375 2,140 1,818 2,437 2,500 Forced-air 118 2,998 188 4,776 50 1,270 6SR3[]02-1[]H42-5[][]0

9 500 2,855 2,424 3,250 3,500 Forced-air 118 2,998 188 4,776 50 1,270 6SR3[]02-1[]J43-5[][]0

9 660 3,080 2,611 3,500 3,500 Forced-air 118 2,998 188 4,776 50 1,270 6SR3202-1[]K43-5[][]0

9 880 5,025 4,271 5,726 6,000 Liquid 114 2,896 370 9,398 66 1,677 6SR3252-0[]B46-0[][]0

9 1,250 7,140 6,067 8,133 8,500 Liquid 115 2,921 378 9,602 66 1,677 6SR3252-0[]C48-5[][]0

Motor voltage—4.16 kV

9 40 275 229 307 400 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]A34-0[][]0

9 70 480 401 538 600 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]B36-0[][]0

9 100 690 573 769 800 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]C38-0[][]0

9 140 965 802 1,076 1,100 Forced-air 102 2,591 66 1,677 42 1,067 6SR4[]02-0[]D41-1[][]0

9 200 1,385 1,175 1,576 1,750 Forced-air 120 3,036 82 2,083 45 1,143 6SR4[]02-0[]E41-7[][]0

9 260 1,800 1,528 2,049 2,250 Forced-air 120 3,036 82 2,083 45 1,143 6SR4[]02-0[]F42-2[][]0

12 315 2,265 1,925 2,581 3,000 Forced-air 118 2,998 208 5,284 50 1,270 6SR3[]02-3[]G43-0[][]0

12 375 2,700 2,292 3,073 3,500 Forced-air 118 2,998 208 5,284 50 1,270 6SR3[]02-3[]H43-5[][]0

12 500 3,600 3,056 4,097 5,000 Forced-air 120 3,048 232 5,893 50 1,270 6SR3[]02-3[]J45-0[][]0

12 660 4,755 4,034 5,408 6,000 Forced-air 120 3,048 232 5,893 50 1,270 6SR3[]02-3[]K46-0[][]0

12 720 5,185 4,401 5,900 6,000 Forced-air 120 3,048 232 5,893 50 1,270 6SR3[]02-3[]L46-0[][]0

9 880 6,095 5,177 6,940 7,000 Liquid 114 2,896 370 9,398 66 1,677 6SR3252-0[]B47-0[][]0

9 1,250 8,660 7,354 9,858 10,000 Liquid 115 2,921 378 9,602 66 1,677 6SR3252-0[]C52-0[][]0

Motor voltage—4.6/4.8 kV

12 40 330 275 369 400 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]A34-0[][]0

12 70 580 481 645 700 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]B37-0[][]0

12 100 830 688 923 1,000 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]C41-0[][]0

12 140 1,160 963 1,291 1,500 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]D41-5[][]0

12 200 1,660 1,411 1,892 2,000 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]E42-0[][]0

12 260 2,160 1,834 2,459 2,500 Forced-air 118 2,998 114 2,896 45 1,143 6SR4[]02-1[]F42-5[][]0

12 315 2,615 2,222 2,979 3,000 Forced-air 118 2,998 208 5,284 50 1,270 6SR3[]02-3[]G43-0[][]0

12 375 3,115 2,645 3,546 4,000 Forced-air 118 2,998 208 5,284 50 1,270 6SR3[]02-3[]H44-0[][]0

12 500 4,155 3,526 4,727 5,000 Forced-air 120 3,048 232 5,893 50 1,270 6SR3[]02-3[]J45-0[][]0

12 660 5,240 4,443 5,956 6,000 Forced-air 120 3,048 232 5,893 50 1,270 6SR3[]02-3[]K46-0[][]0

12 880 7,315 6,213 8,329 8,500 Liquid 115 2,921 406 10,313 66 1,677 6SR3252-1[]B48-5[][]0

12 1,250 10,390 8,825 11,830 12,000 Liquid 115 2,921 412 10,469 70 1,778 6SR3252-1[]C52-4[][]0

Reflects typical output power; motor type or size may affect actual output power.

Typical output value provided; output power may change based on the type or size of motor.

Brackets denote additional digits to be determined based on order detail.

*

**

***

11

No. of 

cells

Output 

current

Type 

rating

Shaft output** kVA Cooling 

method

Height* Width* Depth* Order number (MLFB)***

A kVA kW Hp in. mm in. mm in. mm

Motor voltage—6.0 kV

15 40 415 344 462 500 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]A35-0[][]0

15 70 725 602 807 900 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]B38-7[][]0

15 100 1,035 860 1,153 1,250 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]C41-2[][]0

15 140 1,450 1,203 1,613 1,750 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]D41-7[][]0

15 200 2,075 1,763 2,364 2,500 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]E42-5[][]0

15 260 2,700 2,292 3,073 3,500 Forced-air 115 2,926 194 4,928 55 1,397 6SR4[]02-2[]F43-5[][]0

15 315 3,270 2,777 3,723 4,000 Forced-air 120 3,048 248 6,230 54 1,372 6SR3[]02-5[]G44-0[][]0

15 375 3,895 3,306 4,432 5,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-5[]H45-0[][]0

15 500 5,195 4,408 5,909 6,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-5[]J46-0[][]0

15 660 6,550 5,554 7,446 8,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-5[]K48-0[][]0

18 720 7,040 5,968 8,000 8,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-7[]L48-0[][]0

15 880 9,140 7,766 10,411 11,000 Liquid 115 2,921 439 11,151 70 1,778 6SR3252-2[]B52-2[][]0

15 1,250 12,990 11,031 14,787 15,000 Liquid 115 2,921 439 11,151 70 1,778 6SR3252-2[]C53-0[][]0

Motor voltage—6.6 kV

15 40 455 378 507 600 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]A36-0[][]0

15 70 800 662 888 900 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]B38-7[][]0

15 100 1,140 946 1,269 1,500 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]C41-5[][]0

15 140 1,600 1,324 1,775 2,000 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]D42-0[][]0

15 200 2,285 1,939 2,600 3,000 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]E43-0[][]0

15 260 2,970 2,521 3,380 3,500 Forced-air 115.2 2,926 194 4,928 55 1,397 6SR4[]02-2[]F43-5[][]0

18 315 3,600 3,055 4,096 5,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-7[]G45-0[][]0

18 375 4,285 3,636 4,874 5,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-7[]H45-0[][]0

18 500 5,715 4,849 6,500 7,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-7[]J47-0[][]0

18 660 7,040 5,968 8,000 8,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-7[]K48-0[][]0

15 880 10,055 8,542 11,451 12,000 Liquid 115 2,921 439 11,151 70 1,778 6SR3252-2[]B52-4[][]0

15 1,250 14,285 12,134 16,266 17,000 Liquid 115 2,921 439 11,151 70 1,778 6SR3252-2[]C53-4[][]0

Motor voltage—6.9/7.2 kV

18 315 3,600 3,055 4,096 5,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-7[]G45-0[][]0

18 375 4,285 3,636 4,874 5,000 Forced-air 120 3,048 272 6,909 54 1,372 6SR3[]02-7[]H45-0[][]0

18 500 5,715 4,849 6,500 7,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-7[]J47-0[][]0

18 660 7,040 5,968 8,000 8,000 Forced-air 128 3,252 272 6,909 54 1,372 6SR3[]02-7[]K48-0[][]0

18 880 10,970 9,319 12,492 13,000 Liquid 115 2,921 474 12,040 70 1,778 6SR3252-3[]B52-6[][]0

18 1,250 15,585 13,237 17,744 18,000 Liquid 125 2,921 478 12,142 76 1,931 6SR3252-3[]C53-6[][]0

Motor voltage—10/11 kV

24 40 760 630 845 1,000 Forced-air 114 2,896 254 6,438 50 1,270 6SR4502-5[]A41-0[][]0

24 70 1,330 1,103 1,479 1,500 Forced-air 114 2,896 254 6,438 50 1,270 6SR4502-5[]B41-5[][]0

24 100 1,905 1,576 2,113 2,250 Forced-air 114 2,896 254 6,438 50 1,270 6SR4502-5[]C42-2[][]0

24 140 2,665 2,206 2,958 3,000 Forced-air 114 2,896 254 6,438 50 1,270 6SR4502-5[]D43-0[][]0

24 200 3,810 3,232 4,333 4,500 Forced-air 116 2,947 288 7,300 50 1,270 6SR4502-5[]E44-5[][]0

24 260 4,950 4,202 5,633 5,750 Forced-air 116 2,947 288 7,300 50 1,270 6SR4502-5[]F45-7[][]0

Reflects typical output power; motor type or size may affect actual output power.

Typical output value provided; output power may change based on the type or size of motor.

Brackets denote additional digits to be determined based on order detail.

*

**

***

Siemens Industry, LDAP

500 Hunt Valley Road

New Kensington, PA 15068

[email protected]

1-800-241-4453

Subject to changes without prior notice

All Rights Reserved

Order No: LABR-01300-1213

Printed in USA

©2013 Siemens Industry, Inc.

The information provided in this brochure contains merely 

general descriptions or characteristics of performance, which

in actual case of use do not always apply as described or which 

may change as a result of further development of the products. 

An obligation to provide the respective characteristics shall only 

exist if expressly agreed in the terms of contract. All product 

designations may be trademarks or product names of Siemens 

or supplier companies whose use by third parties for their own 

purposes could violate the rights of the owners.


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