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 BCH18MD04332A5C is a 400 W Easy Lexium 18 BCH18 servo motor delivering 1.27 N·m continuous stall torque at 3000 rpm nominal speed, drawing 2.6 A continuous stall current. It uses a 23-bit incremental encoder on a 14 mm shaft, mounts on a 60 mm flange, and ships without a holding brake.
At 400 W the BCH18MD04332A5C is the higher-torque step in the 60 mm-flange BCH18 family, delivering 1.27 N·m continuous stall torque versus 0.32 N·m on the 100 W motor in the same frame. The 23-bit incremental encoder means the controller must run a homing routine at startup or after any uncommanded stop; choose the multi-turn-encoder variant instead if the axis cannot tolerate that. No brake is fitted, so an external brake or self-locking mechanism is needed wherever the axis must hold position without drive power. Size the Lexium 18 (LXM18) drive's continuous current to 2.6 A, with 5.9 A maximum permanent current available for short accelerating moves. The larger 0.328 kg.cm² rotor inertia and 254 N maximum radial force rating let this motor carry more reflected load inertia and side-load than the 100 W variant while keeping the same 60 mm flange footprint. IP67 sealing and the two-connector male/female power and feedback interface match the rest of the Easy Lexium 18 BCH18 range, so cabling and enclosure design stay the same across the family regardless of power rating.
| 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 | 5.9 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 | 60 mm |
| Electrical connection | 2 connectors male/female |
| Torque constant | 0.4 N.m/A at 40 °C |
| Back emf constant | 28.1 V/krpm at 40 °C |
| Number of motor poles | 5.0 |
| Rotor inertia | 0.328 kg.cm² |
| Stator resistance | 3.26 Ohm |
| Stator inductance | 9.4 mH |
| Maximum radial force Fr | 254 N |
| Maximum axial force Fa | 74 N |
| Length | 96.1 mm |
| Number of mounting holes | 4.0 |
| Circle diameter of the mounting holes | 5.5 mm |
| Width | 96.1 mm |
| Height | 60.0 mm |
| Depth | 68.6 mm |
| Net weight | 1.15 kg |
| Network number of phases | 3 |
| Encoder type | Optic encoder |
| Inertia | 0.0 kg.cm² of brake, 0.478 kg.cm² of motor |
| IP degree of protection | IP67 |
|---|---|
| Ambient air temperature for operation | 0…40 °C |
| Part number | BCH18MD04332A5C |
|---|---|
| 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 | 12.2 cm |
| Package 1 Length | 26.8 cm |
| Package 1 Weight | 1.3 kg |
| Unit Type of Package 2 | S03 |
| Number of Units in Package 2 | 6 |
| Package 2 Height | 30.0 cm |
| Package 2 Width | 29.9 cm |
| Package 2 Length | 39.8 cm |
| Package 2 Weight | 7.8 kg |
| Shipping weight | 1.15 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.
Discover how Schneider soft starters reduce mechanical stress, cut energy peaks, and extend motor life across demanding industrial uses. Shop at Stoklink.
Schneider soft starters reduce energy costs by limiting inrush current, lowering demand charges, and minimizing mechanical wear on motors. Shop at Stoklink.