Schorch High-Voltage Motor 1680 kW (KV6535B-AA06)
Overview
This Schorch high-voltage induction motor, model KV6535B-AA06, is rated 1680 kW at 6.6 kV, 175 A and 995 rpm. It belongs to the ATB Schorch KV series of modular three-phase motors (160 to 17,000 kW), engineered for continuous duty in the most demanding process industries – oil and gas, petrochemical, power generation, steel, marine and water.
Engineering and Design
The KV series covers frame sizes 400 to 1200 with 2 to 24 poles and line voltages from 2.3 to 15 kV, for both direct-on-line and inverter-fed operation. The fabricated steel frame and optional rolling or sleeve bearings are selected for the application, with mounting positions B3 or V1. Insulation is class F (155) with class B (130) temperature rise, and cooling is IC611.
Standard enclosure protection is IP55 or IP65 depending on the site environment, and the motor is CE-certified. With 1680 kW at 6.6 kV and 995 rpm (6-pole at 50 Hz), this machine is a typical drive for large compressors, heavy pumps, mills and fans where reliability and efficiency define plant availability. ATB Schorch has manufactured large electrical machines since 1882, and spares and service support remain available.
Key Features
- 1680 kW rated output at 6.6 kV, 175 A, 995 rpm (KV6535B-AA06)
- KV modular series: 160 to 17,000 kW, frame sizes 400 to 1200
- Voltages 2.3 to 15 kV, line and inverter duty; 2 to 24 poles
- Fabricated steel frame; rolling or sleeve bearings; B3 or V1 mounting
- Thermal class F (155) with class B (130) temperature rise; cooling IC611
- IP55 / IP65 enclosure protection; CE certified
- Built by ATB Schorch (Germany), in service since 1882
- Suitable for continuous duty in hazardous industrial environments
Applications
Driving large compressors, pumps, mills, fans and blowers in oil and gas, petrochemical, power generation, steel, marine and water industries requiring high-voltage continuous-duty motors.
Specifications
| Model | KV6535B-AA06 |
| Rated Power | 1680 kW |
| Rated Voltage | 6.6 kV |
| Rated Current | 175 A |
| Rated Speed | 995 rpm |
| Series | KV modular motors (safe area) |
| Power Range | 160 to 17,000 kW |
| Frame Sizes | 400 to 1200 |
| Poles | 2 to 24 |
| Voltage Range | 2.3 to 15 kV (line and inverter duty) |
| Mounting | B3, V1 |
| Bearings | Rolling or sleeve |
| Frame | Fabricated steel |
| Protection | IP55, IP65 |
| Thermal Class | F (155) / B (130) |
| Cooling | IC611 |
| Certification | CE |
Why Seven Star LLC
Seven Star LLC supplies new and replacement Schorch/ATB high-voltage motors and spares for industrial projects across Oman and the GCC. We match the frame, voltage and duty class to your driven equipment and site conditions, and support installation and commissioning.
Technical Overview
The Schorch KV6535B-AA06 is a high-voltage electric motor from ATB Schorch GmbH’s KV series, rated at 1680 kW. Per ATB Schorch’s official product documentation, the KV series consists of modular-design, high-voltage asynchronous (induction) motors intended for safe-area (non-explosion-protected) industrial applications, covering a voltage class of 2.3–15 kV and a power range across the series from 160 kW up to 17,000 kW — the 1680 kW rating of this specific unit falls comfortably within that broad power range. KV-series motors are suitable for both direct-online operation and variable-frequency-drive (VFD/"FU") operation, giving plant engineers flexibility in speed control strategy for the driven equipment.
Confirmed general features of Schorch’s high-voltage motor range include vacuum-pressure-impregnated (VPI) winding insulation for long-term dielectric reliability, a steel motor housing, high operating efficiency, low noise levels, and short-circuit- and shatterproof terminal boxes for personnel safety during maintenance access. The general KV series cooling classification is IC611 per Schorch’s own documentation. Seven Star LLC notes that while the KV series’ general voltage class, power range, insulation system, and construction features are confirmed directly from ATB Schorch’s own published materials, the exact nameplate data specific to this unit — precise operating speed, frame size, and detailed cooling arrangement — were not independently located in a standalone manufacturer datasheet for this exact model code during this review. Customers should confirm these exact figures against the motor’s physical nameplate or request written confirmation from Seven Star LLC before finalizing a critical installation or replacement decision.
Applications
High-voltage motors in this power class are used to drive large compressors, pumps, fans, and mills across oil and gas, chemical processing, and power generation facilities, where the combination of high power output, robust VPI insulation, and flexibility for either direct-line or VFD operation supports demanding continuous-duty industrial service.
Why Seven Star LLC
Seven Star LLC supplies genuine Schorch high-voltage motors to customers across Oman and the GCC, and works to confirm exact nameplate specifications directly against the manufacturer’s records for a specific model before finalizing a quotation, ensuring the delivered motor matches the customer’s driven-equipment requirements.
Ordering Notes
When requesting a quotation, please provide the motor’s full nameplate details (serial number, exact frame size, and rated speed), your intended power supply configuration (direct-online or VFD), and the driven equipment type, so Seven Star LLC can confirm full compatibility with ATB Schorch’s records before shipment.
VFD Compatibility Advantage
The KV series’ compatibility with variable-frequency-drive operation allows plant engineers to run this motor at variable speed for applications such as compressor or fan capacity control, offering significant energy savings compared to fixed-speed operation with mechanical throttling, particularly valuable for large machines like this 1680 kW unit where even modest efficiency gains translate into substantial energy cost savings over the motor’s operating life.
Long-Term Reliability
The vacuum-pressure-impregnated winding insulation used across Schorch’s high-voltage motor range provides superior resistance to moisture ingress and partial-discharge degradation compared to older varnish-dipped winding processes, supporting a longer expected winding service life under continuous industrial duty. Seven Star LLC recommends periodic insulation resistance and partial-discharge testing as part of a routine maintenance program for large high-voltage motors like this unit, to catch early signs of insulation degradation before an unplanned failure occurs.
Request a Quote for Schorch High-Voltage Motor 1680 kW (KV6535B-AA06)
Send your driven-equipment data (power, speed, voltage, duty) or the motor nameplate details to our engineering team for a quotation. Use the Inquiry Form below and attach the nameplate photo or datasheet – we confirm availability and pricing. | Inquiry Form
Related Products
SCHORCH is a leading German manufacturer of high-power industrial motors and drive systems, renowned for engineering excellence and robust performance in demanding environments. With more than a century of experience, SCHORCH designs and produces customized electric motors for applications in oil & gas, chemical processing, energy, and heavy industries.
The company’s product portfolio includes low- and high-voltage motors, explosion-proof drives, and special-purpose machines engineered for reliability, energy efficiency, and long operational life. SCHORCH motors are widely recognized for their durability and compliance with international efficiency and safety standards.
Seven Star LLC supplies authentic SCHORCH motors and drive solutions to clients across the Middle East, providing dependable power and performance backed by German precision and trusted local support.
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