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The Schneider Electric BCH0401O12A1C is a compact servo motor from the BCH series, compatible with the Lexium 23 Plus servo drive family. With a rated output power of 100 W, a nominal speed of 3000 rpm, and a 40 mm mounting flange, it suits compact motion-control systems where installation space and precise shaft positioning are important.
In applications such as small indexing tables, electronic assembly equipment, label applicators, and lightweight positioning mechanisms, the motor converts servo-drive output into controlled rotary movement. Its 20-bit incremental encoder supplies position feedback to the drive, allowing the control system to regulate motor speed and position. The keyed shaft provides a mechanical interface for coupling the motor to compatible pulleys, gears, or other transmission components.
The BCH0401O12A1C has no holding brake and uses an IP40 protection configuration. It is therefore best assessed for installations where the motor can be mounted in a suitably protected machine enclosure and where the application does not require an integrated brake to hold a vertical or gravity-loaded axis after power is removed.
| Parameter | Specification |
|---|---|
| Brand | Schneider Electric |
| Model | BCH0401O12A1C |
| Product Type | Servo Motor |
| Product Series | BCH |
| Compatible Product Range | Lexium 23 Plus |
| Rated Output Power | 0.1 kW (100 W) |
| Rated Supply Voltage | 220 V |
| Supply Phase | Single phase supply configuration |
| Nominal Speed | 3000 rpm |
| Maximum Mechanical Speed | 5000 rpm |
| Nominal Torque | 0.32 N·m |
| Peak Stall Torque | 0.96 N·m |
| Continuous Stall Current | 0.9 A |
| Maximum Current | 2.7 A RMS |
| Feedback Type | 20-bit incremental encoder |
| Shaft Type | Keyed shaft |
| Shaft Diameter | 8 mm |
| Shaft Length | 20 mm |
| Motor Flange Size | 40 mm |
| Holding Brake | Without holding brake |
| Protection Rating | IP40 |
| Electrical Connection | Flying leads |
| Cooling Method | Natural convection |
| Length | 100.6 mm |
| Weight | 0.5 kg |
Compact 40 mm flange: The small mounting interface suits machinery with limited installation space, including compact positioning units and lightweight automation mechanisms.
20-bit incremental encoder: The encoder provides feedback for servo control. The drive uses this feedback to regulate motor movement and track commanded position during operation.
Keyed shaft connection: The shaft includes a keyway for mechanical coupling to compatible transmission components. Correct shaft alignment and coupling selection help limit vibration and unnecessary bearing loads.
No integrated holding brake: The motor is intended for applications that do not require an integrated brake to hold the shaft stationary when power is removed. Vertical axes and gravity-loaded mechanisms require a separate assessment of their holding and safety requirements.
Natural-convection cooling: The motor dissipates heat without a dedicated forced-air cooling system. Mounting conditions, ambient temperature, and operating duty still affect thermal performance.
Lexium 23 Plus compatibility: The motor belongs to the BCH servo-motor family used with compatible Lexium 23 Plus drives. Motor and drive selection must account for rated power, current, torque, speed, feedback, and supply conditions.
The BCH0401O12A1C receives electrical power from a compatible servo drive. The drive controls the current supplied to the motor windings, producing a rotating magnetic field that turns the rotor and connected shaft.
During a positioning task, a motion controller sends a movement command to the servo drive. The motor’s 20-bit incremental encoder returns position feedback, allowing the drive to compare actual movement with the commanded motion and adjust motor output. This feedback-based operation supports repeatable positioning and controlled speed changes.
For example, in a small indexing mechanism, the motor can rotate a fixture to a specified position before a sensor check or assembly operation takes place. The servo drive coordinates acceleration, travel, and deceleration, while the encoder helps track the motor’s movement.
The keyed shaft transfers torque to the connected mechanism through a compatible coupling or transmission. Because this model has no integrated holding brake, applications that must maintain position during a power interruption need a separate mechanical or braking solution appropriate to the load.
The BCH0401O12A1C serves as the electromechanical actuator in a servo axis. The servo drive regulates motor current and speed, while the encoder supplies feedback used to control the movement commanded by the machine controller.
| System Component | Function | Relationship to BCH0401O12A1C |
|---|---|---|
| Motion Controller or PLC | Generates motion commands and machine sequences | Defines the required movement, position, and operating sequence |
| Lexium 23 Plus Servo Drive | Controls motor current, speed, and movement | Supplies controlled electrical power and processes encoder feedback |
| BCH0401O12A1C Servo Motor | Converts electrical energy into rotary motion | Drives the connected mechanical axis |
| Incremental Encoder | Measures motor movement | Returns feedback used by the servo-control loop |
| Mechanical Coupling | Transfers motor torque to the load | Connects the keyed shaft to the transmission mechanism |
| Gearbox or Belt Drive | Adapts speed and torque to the application | Transfers motor rotation to the machine’s driven component |
| Limit or Home Sensors | Identify travel limits or a reference position | Provide additional machine-position signals where required |
| HMI or Operator Panel | Provides operator commands and status | Displays axis status through the controller or servo system |
| Application | Motion Requirement | Use of BCH0401O12A1C |
|---|---|---|
| Electronic Assembly Equipment | Short, repeatable movements between work positions | Drives compact mechanisms used for component positioning |
| Labeling Machinery | Coordinated rotation and positioning | Operates small feed or positioning mechanisms |
| Compact Indexing Tables | Repeated angular movement between stations | Provides rotary motion for lightweight indexing assemblies |
| Small Packaging Machines | Controlled movement of guides, feeders, or adjustment mechanisms | Supports servo-controlled movement coordinated with the packaging sequence |
| Laboratory and Inspection Equipment | Repeatable positioning of small fixtures or mechanisms | Drives an axis where encoder feedback is required |
| Lightweight Pick-and-Place Mechanisms | Controlled movement over a limited travel range | Supplies rotary motion to a suitably sized mechanical transmission |
| Small Automated Production Units | Positioning synchronized with sensors and machine logic | Operates as a servo axis within a PLC-based control system |
| Component | Function | Selection Considerations |
|---|---|---|
| Lexium 23 Plus Servo Drive | Controls motor current and movement | Rated power, current, supply arrangement, and encoder compatibility |
| Motion Controller or PLC | Generates positioning commands and machine sequences | Required motion functions, I/O, and communication interface |
| Servo Power Cable | Connects the motor to the drive | Current capacity, cable length, connector or flying-lead arrangement |
| Encoder Feedback Cable | Carries feedback signals to the drive | Encoder interface, shielding, routing, and electrical compatibility |
| Keyed Shaft Coupling | Transfers torque to the driven mechanism | Shaft diameter, key dimensions, alignment, and allowable torque |
| Gearbox | Adapts speed and torque | Gear ratio, backlash, rated torque, and positioning requirements |
| Home or Limit Sensors | Detect reference positions and travel limits | Sensor type, switching logic, and controller compatibility |
| Mechanical Holding Brake | Holds a load when the motor is not actively driving it | Required holding torque, release method, and application safety requirements |
| Model | Product Description | Application Context |
|---|---|---|
| BCH0401O12A1C | Lexium 23 Plus BCH Servo Motor, 100 W | Compact servo axis requiring a keyed shaft and no integrated holding brake |
| BCH0401O22A1C | Lexium 23 Plus BCH Servo Motor variant | Consider only after verifying the exact shaft and protection configuration against the application |
| BCH0601O12A1C | Lexium 23 Plus BCH Servo Motor, 200 W class | A higher-power option with a larger mounting flange for applications requiring greater motor capacity |
| BCH0602O12A1C | Lexium 23 Plus BCH Servo Motor, 400 W class | For applications requiring a higher power class and a larger motor frame |
| BCH0401O12F1C | Lexium 23 Plus BCH Servo Motor variant with holding brake | A configuration to evaluate where a holding brake is required; verify the full model specification before selection |
Related motor references can differ in power, shaft configuration, feedback, protection, and brake arrangement. Confirm the complete model code and the matching servo-drive requirements before substituting one motor for another.
It supplies motor-position feedback to the servo drive. The drive uses this feedback to regulate movement against the commanded motion. The encoder is part of the motor’s feedback arrangement, so the drive configuration and feedback wiring must be compatible.
No. This model is specified without an integrated holding brake. If the application includes a vertical axis or a load that could move when power is removed, a separate holding solution may be necessary.
Verify the drive’s motor compatibility, rated power, current, supply arrangement, encoder interface, and supported motor parameters. The controller and drive must also be configured for the intended movement and feedback direction.
The motor’s IP40 protection configuration does not provide protection against water ingress. For installations exposed to moisture, conductive dust, or other contaminants, the machine enclosure and mounting arrangement must provide the necessary environmental protection.