Schneider Electric BMH Series Servo Motors — BMH1403P06F2A

Technical Dossier

Product Details And Specifications

Schneider Electric BMH Series: Comprehensive Module Range and Technical Overview

The Schneider Electric BMH series (Lexium Servo Motors) represents one of the most widely deployed brushless AC servo motor families in global heavy industry. Installed across petrochemical complexes, nuclear power auxiliary systems, offshore platform control loops, and continuous-process refineries, the BMH range is the motion-control backbone of Lexium 05, Lexium 15, and Lexium 23 servo drive platforms. Its three-phase permanent-magnet synchronous architecture delivers high torque density at low inertia, making it the reference design for precision axis control in safety-critical environments where unplanned downtime carries six-figure hourly costs. The series spans frame sizes 070 through 205, covering continuous stall torques from 0.9 N·m to 130 N·m, and is produced to IEC 60034 standards at Schneider Electric's Staubli-partnered manufacturing facilities in France and Slovakia.

The Evolution of BMH Series Architecture

The BMH designation was introduced in the mid-1990s as Schneider Electric consolidated its motion portfolio under the Lexium brand, superseding the earlier SER and SY/MAX servo families. First-generation BMH motors used resolver feedback exclusively and were rated for Lexium 05 drives operating on 200–240 V AC single-phase bus. The second architectural revision introduced SinCos encoder options (2048 ppr) and extended the voltage class to 400 V three-phase, enabling compatibility with Lexium 15 and the Modicon Premium PLC motion controller (TSX57xx). The third and current generation added multi-turn absolute encoder variants (Hiperface protocol), IP65 shaft sealing as standard, and optional holding brakes rated to 24 V DC. Compatibility note: BMH motors with resolver feedback (suffix R) are not interchangeable with SinCos encoder variants (suffix S or F) without corresponding drive parameter reconfiguration. Lexium 32 and Lexium 62 drives require the absolute encoder (Hiperface) variants for full closed-loop commissioning without homing cycles. The BMH series is now classified as mature/end-of-active-development; Schneider Electric's current recommended successor platform is the BSH/BMI series under Lexium 62. However, BMH motors remain in active spare-parts supply and are supported under Schneider Electric's Green Premium lifecycle program through at least 2030.

BMH Series Full Catalog & Functionalities (SKU List)

The following SKUs represent verified, commonly stocked BMH series models. Each entry reflects the standard Schneider Electric part numbering convention: frame size / torque class / speed rating / feedback type / brake / shaft / connector orientation.

BMH0703P01F2A: Frame 070, 0.9 N·m continuous, 6000 rpm, SinCos encoder, no brake, smooth shaft, straight connector.
BMH0703P01F2P: Frame 070, 0.9 N·m continuous, 6000 rpm, SinCos encoder, 24 VDC holding brake, smooth shaft.
BMH0703T11F2A: Frame 070, 0.9 N·m, 8000 rpm high-speed variant, SinCos, no brake, keyed shaft.
BMH1001P01F2A: Frame 100, 2.5 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH1001P01F2P: Frame 100, 2.5 N·m continuous, 3000 rpm, SinCos encoder, 24 VDC brake, smooth shaft.
BMH1002P01F2A: Frame 100, 4.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH1003P01F2A: Frame 100, 6.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH1003P01F2P: Frame 100, 6.0 N·m continuous, 3000 rpm, SinCos encoder, 24 VDC brake, smooth shaft.
BMH1401P01F2A: Frame 140, 7.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH1402P01F2A: Frame 140, 11.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH1403P06F2A: Frame 140, 16.0 N·m continuous, 6000 rpm high-speed, SinCos encoder, no brake, smooth shaft, straight connector — the subject SKU of this listing.
BMH1403P06F2P: Frame 140, 16.0 N·m continuous, 6000 rpm, SinCos encoder, 24 VDC holding brake, smooth shaft.
BMH1404P01F2A: Frame 140, 22.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH2051P01F2A: Frame 205, 45.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH2052P01F2A: Frame 205, 70.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH2053P01F2A: Frame 205, 100.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.
BMH2054P01F2A: Frame 205, 130.0 N·m continuous, 3000 rpm, SinCos encoder, no brake, smooth shaft.

Sourcing Hard-to-Find & Obsolete BMH Series Parts

DriveKNMS maintains a dedicated inventory buffer for BMH series motors that have transitioned to limited-availability or obsolete status within Schneider Electric's standard distribution network. This includes early resolver-feedback variants (suffix R), non-standard shaft configurations, and motors originally supplied as OEM-integrated units within Schneider Electric Modicon Premium and Quantum motion control cabinets. Our sourcing protocol covers: direct surplus acquisition from decommissioned plant assets, cross-referencing against Schneider Electric's supersession tables to identify approved functional equivalents, and pre-shipment dimensional verification to confirm mounting compatibility (IEC B5 flange, shaft diameter, and keyway dimensions). For BMH motors required as direct drop-in replacements in running production lines — where re-commissioning time must be minimized — DriveKNMS can supply units with pre-loaded encoder offset data upon request, reducing drive re-tuning to parameter upload only.

Quality Control for the BMH Series Range

BMH series motors present specific test challenges due to their integrated feedback devices and multi-conductor hybrid power/signal cabling. DriveKNMS applies the following test sequence to all BMH units processed through its facility: (1) Winding resistance balance check across U-V-W phases to ±2% tolerance; (2) Insulation resistance test at 500 V DC, minimum 100 MΩ phase-to-frame; (3) Encoder signal integrity verification — SinCos amplitude (1 Vpp ±10%), quadrature phase offset, and index pulse presence confirmed via oscilloscope; (4) Brake engagement/release cycle test at 24 V DC nominal with current draw logging; (5) No-load run-up to rated speed on a Lexium 32 test drive with real-time monitoring of speed ripple and thermal rise; (6) Shaft runout measurement, maximum 0.02 mm TIR at the coupling face. Each unit ships with a test record traceable to the individual serial number.