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 BCH18MM08132A6C is an 850 W Easy Lexium 18 BCH18 servo motor on a 130 mm flange, rated for 5.39 N·m continuous stall torque at 1500 rpm nominal speed and 3000 rpm maximum mechanical speed. It carries a 23-bit optic incremental encoder, no holding brake, and a 22 A maximum permanent current rating for sizing the LXM18 drive's output stage.
The BCH18MM08132A6C is the base 850 W motor in the 130 mm M130 frame, built for applications that do not need a holding brake and can tolerate a homing move after power-up with its 23-bit optic incremental encoder. Its 1500 rpm nominal speed and 5.39 N·m continuous stall torque suit a geared or direct-drive axis sized for moderate speed rather than high-rpm operation; step up to the 1.0 kW or larger M130 variants within the same flange if the application needs more torque. At 14.0 kg.cm² rotor inertia, it is the lightest-inertia motor in the M130 frame, useful when the load-to-rotor inertia ratio must stay low for stable servo tuning. The 22 A maximum permanent current figure, not the 7.3 A continuous rating, is what sizes the LXM18 drive's output stage for peak-demand moves.
| Range of product | Lexium 18 |
|---|---|
| Range compatibility | Lexium 18 |
| Product or component type | Servo motor |
| Device short name | BCH18 |
| Maximum mechanical speed | 3000.0 rpm |
|---|---|
| [Us] rated supply voltage | 200...240 V |
| Continuous stall current | 7.3 A |
| Continuous stall torque | 5.39 N.m, 220 V |
| Continuous power | 850 W |
| Peak stall torque | 16.17 N.m, 220 V |
| Nominal output power | 850 W, 220 V |
| Nominal torque | 5.39 N.m, 220 V |
| Nominal speed | 1500 rpm, 220 V |
| Maximum permanent current | 22 A |
| Shaft end | Parallel key |
| Shaft diameter | 22.0 mm |
| Shaft length | 55 mm |
| Key width | 8.0 mm |
| Feedback type | 23 bits optic incremental encoder |
| Holding brake | Without |
| Mounting support | Asian standard flange |
| Motor flange size | 130 mm |
| Electrical connection | 2 connectors male/female |
| Torque constant | 0.74 N.m/A at 40 °C |
| Back emf constant | 53.7 V/krpm at 40 °C |
| Number of motor poles | 5.0 |
| Rotor inertia | 14.0 kg.cm² |
| Stator resistance | 0.64 Ohm |
| Stator inductance | 5.7 mH |
| Maximum radial force Fr | 686 N |
| Maximum axial force Fa | 343 N |
| Length | 145.9 mm |
| Number of mounting holes | 4.0 |
| Circle diameter of the mounting holes | 9.0 mm |
| Width | 145.9 mm |
| Height | 130.0 mm |
| Depth | 182.4 mm |
| Net weight | 6.85 kg |
| Network number of phases | 3 |
| Encoder type | Optic encoder |
| Inertia | 0.0 kg.cm² of brake, 14.0 kg.cm² of motor |
| IP degree of protection | IP67 |
|---|---|
| Ambient air temperature for operation | 0…40 °C |
| Part number | BCH18MM08132A6C |
|---|---|
| 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 | 25 cm |
| Package 1 Width | 20 cm |
| Package 1 Length | 40 cm |
| Package 1 Weight | 7.94 kg |
| Unit Type of Package 2 | P06 |
| Number of Units in Package 2 | 18 |
| Package 2 Height | 105.0 cm |
| Package 2 Width | 60.0 cm |
| Package 2 Length | 80.0 cm |
| Package 2 Weight | 142.92 kg |
| Shipping weight | 6.85 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 7.3 A.
The rated motor power of BCH18 is 0.85 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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