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Siemens & Innomotics SIMOTICS HV Compact-Plus High-Voltage Motors

Brand: Siemens / Innomotics | Series: SIMOTICS HV Compact-Plus (IC411 Rib-Cooled Cast Iron Range)
High-Power Density Rib-Cooled Engineering — Siemens to Innomotics:
The SIMOTICS HV Compact-Plus series is Siemens' benchmark rib-cooled medium- and high-voltage induction motor architecture, designed to deliver maximum power output within the most compact physical envelope. Following the global transition of Siemens' electric motor operations, this specialized high-voltage portfolio is engineered and manufactured under the independent industrial brand Innomotics.

Engineering Superiority & Rib-Cooled Advantages:
• Self-Contained IC411 Surface Cooling: Features sophisticated cross-flow cooling ribs cast directly into an ultra-rigid EN-GJL-200 / EN-GJS grey cast iron frame. Eliminates separate water piping (IC81W) or bulky top-mounted air-to-air heat exchangers (IC611), dramatically cutting installation footprints and maintenance overhead.
• Broad Medium-Voltage Versatility: Configured for standard industrial grids at 3.3 kV, 6.0 kV, 6.6 kV, 10.0 kV, and 11.0 kV (50 Hz and 60 Hz), with continuous power outputs spanning 200 kW to 3,000 kW across IEC frame sizes 355, 400, 450, 500, and 560.
• MICALASTICĀ® VPI Insulation: Vacuum Pressure Impregnation meets Class F standards (utilized to Class B temperature rise, 80K reserve), enabling direct grid starting (DOL) or smooth speed regulation via medium-voltage converters (SINAMICS GM150 / SM150) under demanding load profiles.

The Siemens & Innomotics SIMOTICS HV Compact-Plus Series sets the standard for reliability, structural rigidity, and low acoustic noise in harsh, dust-laden, and outdoor industrial environments. Built with high mechanical strength to resist torsional vibrations and short-circuit forces, these motors feature regreasable roller or hydrodynamic sleeve bearings, dual-terminal boxes for segregated power and auxiliary wiring, Pt100 temperature sensors in stator slots and bearings, SPM shock-pulse vibration nipples, and IP55/IP56/IP65 protection. They are heavily specified worldwide in chemical processing pumps, refinery cooling fans, raw gas compressors, water intake stations, mining belt conveyors, and power plant boiler feed pumps.

Technical Specifications

Series Designation SIMOTICS HV Compact-Plus (High-Power Density Rib-Cooled Squirrel-Cage AC Induction Motor)
Brand Lineage Siemens → Innomotics (100% Authentic Heavy Industrial European Factory Supply)
Cooling Concept (IEC 60034-6) IC411 (Self-contained surface fin/rib-cooled with bi-directional or uni-directional shaft fan)
Rated Supply Voltages 3.3 kV, 6.0 kV, 6.6 kV, 10.0 kV, 11.0 kV (50 Hz / 60 Hz / Variable Speed VFD Inverter Duty)
Rated Power Range 200 kW to 3,000 kW+ (IEC Frame Sizes 355, 400, 450, 500, 560)
Pole Configurations 2-Pole (3000/3600 rpm), 4-Pole (1500/1800 rpm), 6-Pole (1000/1200 rpm), 8-Pole (750/900 rpm)
Insulation Technology MICALASTIC® VPI Class F system (155°C), evaluated to Class B temperature rise (80K reserve)
Mounting Executions IM B3 (Foot mounted), IM B35 (Foot & Flange), IM V1 (Vertical shaft down for deep-well pumps)

Siemens & Innomotics HV Compact-Plus Selection Directory (6kV & 10kV Ratings)

Procurement selection directory for Siemens & Innomotics SIMOTICS HV Compact-Plus Motors. Review primary ratings for heavy industrial 4-Pole (1500 rpm at 50Hz, 6 kV and 10 kV supply) applications. Identify exact IEC frame sizes (355 to 560), rated power in kW, full-load efficiency values, and model design structures:

Brand Lineage Cooling Mode Rated Voltage Frame Size Rated Power Poles Efficiency Rating
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV355M250 kW495.5% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV355L315 kW495.8% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV355L355 kW496.0% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV400L400 kW496.2% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV400L500 kW496.4% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV450L630 kW496.5% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV450L710 kW496.6% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV450L800 kW496.8% (High Efficiency)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV500L1000 kW496.9% (Premium Heavy)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV500L1250 kW497.1% (Premium Heavy)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV560L1600 kW497.3% (Premium Heavy)
Siemens / InnomoticsIC411 (Rib-Cooled)6 kV560L2000 kW497.4% (Ultra High Power)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV400L400 kW495.6% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV400L500 kW495.8% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV450L630 kW496.0% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV450L710 kW496.2% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV450L800 kW496.4% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV500L1000 kW496.6% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV500L1250 kW496.8% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV560L1600 kW497.0% (10kV Grid Ready)
Siemens / InnomoticsIC411 (Rib-Cooled)10 kV560L2000 kW497.2% (10kV Grid Ready)

HV Compact-Plus Rib-Cooled Architectural Advantages

Engineering comparison between self-cooled Compact-Plus (IC411) and traditional external heat-exchanger systems:

Design Element SIMOTICS HV Compact-Plus (IC411) Air-to-Air Heat Exchanger (IC611) Air-to-Water Heat Exchanger (IC81W)
Cooling Medium Ambient air via cast iron surface ribs Internal air circuit via top tube bundle Internal air circuit via cooling water bundle
Physical Footprint Ultra-compact (lowest center of gravity) Tall overhead cooler structure Compact, but requires water pipes
Maintenance Demands Zero cooling circuit maintenance Requires regular tube bundle cleaning Requires water filtration & leak monitoring
Operational Reliability Maximal; impervious to coolant loss High; dependent on external fan tubes High; reliant on continuous water feed

Legacy Siemens 1LA4 / 1PQ4 to SIMOTICS HV Compact-Plus Migration Guide

Discontinued Siemens medium- and high-voltage motors (1LA4, 1PQ4, 1LA8 Compact) can be upgraded to modern HV Compact-Plus units:

Legacy Siemens Motor Model Obsolescence / Operational Bottleneck Modern HV Compact-Plus Replacement Dielectric & Structural Upgrade Mechanical Fit & Foundation Alignment
Siemens 1LA4 Series (6kV / 10kV) Resin insulation aging; high internal winding losses SIMOTICS HV Compact-Plus (IE3 equivalent) Drop-In Fit MICALASTICĀ® VPI system with Class B temperature rise Customized soleplates and shaft extensions matching original baseplates and coupling halves.
Siemens 1PQ4 Forced-Ventilated Auxiliary blower motor failures and vibration HV Compact-Plus with High-Efficiency Ribs Self-Cooled Lower heat dissipation requirements via higher efficiency Eliminates external fan maintenance while ensuring high thermal margins under variable loads.
Older Non-Inverter Duty HV Motors Inter-turn insulation breakdown under VFD voltage spikes SIMOTICS HV Compact-Plus Inverter Ready VFD Inverter Ready Reinforced insulation handling high $du/dt$ converter stresses Fully compatible with SINAMICS GM150 and third-party medium-voltage variable speed drives.

Heavy Industrial Sourcing & Global Project Supply by WeDrive

WE DRIVE HONGKONG LIMITED provides technical engineering verification, medium-voltage network coordination, and worldwide supply for the entire Siemens & Innomotics SIMOTICS HV Compact-Plus Motor portfolio. Whether your plant requires a 6kV centrifugal water intake pump drive (Frame 400), an aggressive refinery blower motor (10kV Frame 450), vertical deep-well turbine pump drives (IM V1), or variable-speed slurry pump motors equipped with insulated sleeve bearings to prevent circulating shaft currents, our engineering team confirms complete electrical and mechanical parameters before manufacturing.

Modernizing aging high-voltage induction motors to current SIMOTICS HV Compact-Plus systems delivers state-of-the-art power density, eliminates cooling maintenance routines, and significantly reduces total plant energy consumption without modifying existing foundation blocks. Provide our technical sales engineers with your existing motor nameplate photograph, full serial number, or grid voltage parameters to receive an authentic OEM quotation complete with dimensional drawings and factory test certificates.

Core Benchmark Model Standard Configurations

  • HV Compact-Plus 6kV 250 kW (SH 355)
  • HV Compact-Plus 6kV 315 kW (SH 355)
  • HV Compact-Plus 6kV 400 kW (SH 400)
  • HV Compact-Plus 6kV 500 kW (SH 400)
  • HV Compact-Plus 6kV 630 kW (SH 450)
  • HV Compact-Plus 6kV 800 kW (SH 450)
  • HV Compact-Plus 6kV 1000 kW (SH 500)
  • HV Compact-Plus 6kV 1600 kW (SH 560)
  • HV Compact-Plus 6kV 2000 kW (SH 560)
  • HV Compact-Plus 10kV 400 kW (SH 400)
  • HV Compact-Plus 10kV 500 kW (SH 400)
  • HV Compact-Plus 10kV 630 kW (SH 450)
  • HV Compact-Plus 10kV 710 kW (SH 450)
  • HV Compact-Plus 10kV 800 kW (SH 450)
  • HV Compact-Plus 10kV 1000 kW (SH 500)
  • HV Compact-Plus 10kV 1250 kW (SH 500)
  • HV Compact-Plus 10kV 1600 kW (SH 560)
  • HV Compact-Plus 10kV 2000 kW (SH 560)
  • HV Compact-Plus 3.3kV Heavy Drive
  • HV Compact-Plus 11kV Grid Drive

Instant Inquiry

Looking for stock, lead times, replacement units, or technical pricing for Siemens HV Compact-Plus Motors?

  • 100% Original Heavy Industrial Equipment
  • 3.3kV, 6kV, 10kV & 11kV Grid Compliance
  • Legacy 1LA4 / 1PQ4 Drop-In Upgrades
  • Factory Testing Certificates & Warranty
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Siemens & Innomotics HV Compact-Plus Catalogs & Technical Documentation

As an experienced siemens high voltage motor supplier, we provide technical manuals, foundation loading diagrams, thermal curve charts, and selection guides for SIMOTICS HV Compact-Plus rib-cooled motors, medium-voltage converters, and legacy 1LA4 motors.

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