VFD vs Servo Drive: Key Differences
A side-by-side comparison of VFD and servo drive motor type, feedback, dynamic response, overload rating, cost, and applications for industrial engineers.
The Schneider Electric BCH18MF04332A5C is a 400 W Easy Lexium 18 (BCH18) servo motor rated for 1.27 N·m continuous stall torque at 3000 rpm nominal speed. It mounts on an 80 mm Asian standard flange, draws 2.6 A continuous stall current from a 200...240 V supply, and ships without a holding brake and carries a 23 bits optic incremental encoder. The IP67-rated motor pairs with the Lexium 18 (LXM18) servo drive family.
At 1.27 N·m continuous stall torque and 2.6 A continuous current, the BCH18MF04332A5C fits light-to-medium load axes inside the 80 mm flange frame; the 4.45 N·m peak stall torque only covers brief acceleration, not sustained running. The incremental optic encoder reports position within one revolution only, so the controller needs a homing move after power-up unless an external absolute reference is added. There is no holding brake on this variant, so it suits horizontal axes where the load cannot drift under gravity when power drops; a braked sibling in the same frame covers vertical or overhanging loads. The 200 W BCH18 covers lighter axes in the same frame; the braked version of this motor adds a holding brake for vertical loads.
Within the Lexium 18 line, the BCH18MF04332A5C is sized for small pick-and-place arms, label and vision-inspection indexing, and light conveyor or feed axes where the duty cycle is high but the load inertia is low. Its 80 mm flange and 400 W continuous rating keep it in the same mechanical footprint as its sibling motors, so an LXM18 drive sized for this power level can be reused across the family without a mechanical redesign.
| Range of product | Lexium 18 |
|---|---|
| Range compatibility | Lexium 18 |
| Product or component type | Servo motor |
| Device short name | BCH18 |
| Maximum mechanical speed | 6000.0 rpm |
|---|---|
| [Us] rated supply voltage | 200...240 V |
| Continuous stall current | 2.6 A |
| Continuous stall torque | 1.27 N.m, 220 V |
| Continuous power | 400 W |
| Peak stall torque | 4.45 N.m, 220 V |
| Nominal output power | 400 W, 220 V |
| Nominal torque | 1.27 N.m, 220 V |
| Nominal speed | 3000 rpm, 220 V |
| Maximum permanent current | 9.3 A |
| Shaft end | Parallel key |
| Shaft diameter | 14.0 mm |
| Shaft length | 30.0 mm |
| Key width | 5.0 mm |
| Feedback type | 23 bits optic incremental encoder |
| Holding brake | Without |
| Mounting support | Asian standard flange |
| Motor flange size | 80 mm |
| Electrical connection | 2 connectors male/female |
| Torque constant | 0.49 N.m/A at 40 °C |
| Back emf constant | 35.0 V/krpm at 40 °C |
| Number of motor poles | 5.0 |
| Rotor inertia | 1.19 kg.cm² |
| Stator resistance | 2.8 Ohm |
| Stator inductance | 8.9 mH |
| Maximum radial force Fr | 392 N |
| Maximum axial force Fa | 147 N |
| Length | 98 mm |
| Number of mounting holes | 4.0 |
| Circle diameter of the mounting holes | 6.5 mm |
| Width | 98.0 mm |
| Height | 80.0 mm |
| Depth | 88.6 mm |
| Net weight | 1.95 kg |
| Network number of phases | 3 |
| Encoder type | Optic encoder |
| Inertia | 0.0 kg.cm² of brake, 1.19 kg.cm² of motor |
| IP degree of protection | IP67 |
|---|---|
| Ambient air temperature for operation | 0…40 °C |
| Part number | BCH18MF04332A5C |
|---|---|
| Type designation | BCH18 |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| Warranty (in months) | 18 |
|---|
| Unit Type of Package 1 | PCE |
|---|---|
| Number of Units in Package 1 | 1 |
| Package 1 Height | 13.8 cm |
| Package 1 Width | 18.2 cm |
| Package 1 Length | 28.3 cm |
| Package 1 Weight | 2.1 kg |
| Unit Type of Package 2 | S04 |
| Number of Units in Package 2 | 8 |
| Package 2 Height | 30.0 cm |
| Package 2 Width | 39.7 cm |
| Package 2 Length | 59.8 cm |
| Package 2 Weight | 17.2 kg |
| Shipping weight | 1.95 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
No documents are on file for this part yet.
Ask us for the datasheetThe rated current of BCH18 is 2.6 A.
The rated motor power of BCH18 is 0.4 kW.
The tariff (HS) code on file for BCH18 is 850152.
BCH18 ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
A side-by-side comparison of VFD and servo drive motor type, feedback, dynamic response, overload rating, cost, and applications for industrial engineers.
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