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Schneider Electric MH31903P16A2200 — Servo Motors with Brake

MH31903P16A2200 Servo Motor, 37 N.m, IP65, 400/480 V

MPNMH31903P16A2200
Obsolete

Schneider Electric MH3 servo motor, sizing reference MH31903P16A2200, 37 N.m nominal torque, 65 N.m continuous stall, three-phase 400/480 V, IP65, single-turn SinCos Hiperface encoder.

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MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

MH31903P16A2200 — Identification
ParameterValue
Product typeServo motor
Holding brakeWithout

Performance

MH31903P16A2200 — Performance
ParameterValue
Nominal torque327.5 lbf.in (37 N.m) LXM52 21.3 mA, 400 V, three phase 327.5 lbf.in (37 N.m) LXM52 21.3 mA, 480 V, three phase 327.5 lbf.in (37 N.m) LXM62 21.3 mA, 400 V, three phase 327.5 lbf.in (37 N.m) LXM62 21.3 mA, 480 V, three phase
Nominal output power7.75 W, 400 V 7.75 W, 480 V
Continuous power9560 W
Nominal speed2000 rpm LXM52 21.3 mA, 400 V, three phase 2000 rpm LXM52 21.3 mA, 480 V, three phase 2000 rpm LXM62 21.3 mA, 400 V, three phase 2000 rpm LXM62 21.3 mA, 480 V, three phase
Maximum mechanical speed3800 rpm
Continuous stall torque575.3 lbf.in (65 N.m), 115...480 V, three phase
Peak stall torque2920.7 lbf.in (330 N.m), 115...480 V, three phase
Rotor inertia194.1 kg.cm²

Electrical

MH31903P16A2200 — Electrical
ParameterValue
Rated supply voltage (Us)115...480 V
PhaseThree phase
Maximum current (Irms)124.5 A
Continuous stall current36.1 A
Torque constant1.8 N.m/A 248 °F (120 °C)
Back-EMF constant129.2 V/krpm
Number of motor poles10
Stator resistance0.13 Ohm
Stator inductance3.62 mH
Stator electrical time constant21.6 ms
Electrical connectionRotatable right-angled connectors

Feedback

MH31903P16A2200 — Feedback
ParameterValue
Encoder typeSingle turn SinCos Hiperface
Speed feedback resolution16 periods

Mechanical

MH31903P16A2200 — Mechanical
ParameterValue
Shaft end styleParallel key
Shaft diameter1.5 in (38 mm)
Shaft length3.1 in (80 mm)
Second shaft endWithout second shaft end
Key width0.4 in (10 mm)
Motor flange size7.5 in (190 mm)
Mounting supportInternational standard flange
Length12.2 in (310 mm)
Number of mounting holes4
Mounting-hole diameter0.6 in (14 mm)
Mounting-hole bolt circle diameter8.5 in (215 mm)
Centring collar diameter7.09 in (180 mm)
Centring collar depth0.2 in (4 mm)
Maximum radial force (Fr)3300 N 1000 rpm 3250 N 2000 rpm 3150 N 3000 rpm 3100 N 4000 rpm

Environmental

MH31903P16A2200 — Environmental
ParameterValue
IP degree of protectionIP65 standard
Cooling methodNatural convection
Winding (copper hot) temperature275 °F (135 °C)

Product details

Sizing the 37 N.m frame against the load cycle

The MH31903P16A2200 sits in the MH3 family and carries the MH31903P sizing reference on its nameplate (cites:,), so a Lexium 52 or Lexium 62 drive of the matching rating is the natural pairing the catalogue builds around. At nominal, the same 327.5 lbf.in (37 N.m) point holds whether the drive is an LXM52 or LXM62 on 400 V or 480 V three-phase (cites:), which means the BOM position is interchangeable across the two drive families without a torque derate.

Mechanical fit on the machine

Mounting is the international standard flange pattern (cites:) on a 7.5 in (190 mm) bolt circle (cites:), with four 0.6 in (14 mm) mounting holes (cites:,) and a 7.09 in (180 mm) centring collar seated 0.2 in (4 mm) deep (cites:,). Shaft end is a parallel-key 1.5 in (38 mm) diameter by 3.1 in (80 mm) long with a 0.4 in (10 mm) key (cites:,) — a standard coupling and gearbox input that does not require a custom-machined adapter. Radial load handling drops from 3300 N at 1000 rpm to 3100 N at 4000 rpm on the catalogue curve (cites:), and the maximum mechanical speed ceiling is 3800 rpm (cites:) — for a belt or pinion drive the buyer is choosing between shaft speed and overhung load, not treating them independently. Overall length is 12.2 in (310 mm) (cites:), so cabinet depth and the cable-bend radius behind the motor both need to be checked before commit.

Feedback, brake, and electrical connection

Feedback is a single-turn SinCos Hiperface encoder (cites:), the resolver-free digital protocol that the Lexium 52 and Lexium 62 drives accept directly — no add-on encoder card needed in the cabinet. There is no holding brake on this build (cites:) and no second shaft end (cites:), so vertical-axis applications that need a fail-safe brake must add it externally or pick the braked variant of the MH31903P sizing reference. Power and signal land on rotatable right-angled connectors (cites:), which lets the wireman orient the cable exit after the motor is bolted down instead of fighting the gland during mounting.

Thermal envelope and sealing for plant duty

Sealing is IP65 standard (cites:), which covers dust-tight and low-pressure water-jet exposure — appropriate for typical plant floors and most washdown-adjacent areas, though it is not the IP67K rating called for on direct food-zone spray-down. Continuous power at nominal is listed at 9560 W (cites:); the same row also lists 7.75 W as a 'nominal output power' entry (cites:), which is a data-entry artefact rather than a usable figure — the 9560 W continuous power entry is the rating that drives the cooling and cabinet-sizing decision.

Sourcing posture for the BOM line

No official second source or successor cross-reference is on file for this code, which is normal for a configured servo motor — the variant suffix fixes the encoder, brake option, shaft, and connector combination, so a 'replacement' must match all of those fields, not just the torque rating.

Frequently asked questions

What is the closest pin-compatible alternative to MH31903P16A2200 in this component family?

Within the MH3 family the natural adjacent positions are the other MH31903P variants that share the same 190 mm flange (cites:) and 37 N.m nominal torque (cites:) but differ on options such as holding brake (cites:) or second shaft end (cites:).

What IP rating does the MH31903P16A2200 carry?

Sealing is IP65 standard (cites:), which covers dust-tight duty and low-pressure water-jet exposure on typical plant floors. For direct food-zone spray-down the buyer should move to a higher-rated variant of the MH31903P family.

MPN
MH31903P16A2200