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M3774T

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M3774T
June 08, 2026

M3774T

The M3774T is a general‑purpose three‑phase AC induction motor manufactured by Baldor‑Reliance (now part of ABB), designed for industrial and commercial applications requiring reliable, continuous‑duty operation. It is a TEFC (Totally Enclosed Fan‑Cooled) motor built to NEMA Premium efficiency standards, suitable for both constant‑speed and variable‑frequency drive (VFD) operation.

Description

M3774T

The M3774T is a general‑purpose three‑phase AC induction motor manufactured by Baldor‑Reliance (now part of ABB), designed for industrial and commercial applications requiring reliable, continuous‑duty operation. It is a TEFC (Totally Enclosed Fan‑Cooled) motor built to NEMA Premium efficiency standards, suitable for both constant‑speed and variable‑frequency drive (VFD) operation.

General Description

The M3774T is a 10 HP, 4‑pole industrial motor with a rugged cast‑iron frame and a Totally Enclosed Fan‑Cooled enclosure, which protects internal components from dust, moisture, and contaminants. It is engineered for 60 Hz operation and can be used across a wide range of voltages (208/230/460 VAC). The model is discontinued by Baldor‑Reliance but remains available as surplus, refurbished, or direct replacement under the updated part number EM3774T.

Key Electrical Specifications

  • Rated Power: 10 HP (7.5 kW)

  • Phase: 3‑phase

  • Frequency: 60 Hz

  • Voltage Ratings: 208 VAC, 230 VAC, 460 VAC (60 Hz)

  • Full‑Load Speed: 1760 RPM (synchronous speed 1800 RPM)

  • Frame Size: NEMA 215T

  • Enclosure: TEFC (Totally Enclosed Fan‑Cooled)

  • Insulation Class: F (155 °C)

  • Service Factor: 1.15

  • Efficiency: NEMA Premium efficiency

  • Current (460 VAC): ~12.6 A

  • Starting Current: ~6 × full‑load current

Mechanical and Environmental Characteristics

  • Frame Material: Cast iron

  • Mounting: Rigid base (foot‑mounted)

  • Shaft: Keyway shaft, standard NEMA dimensions

  • Dimensions (approx.): 21.5” L × 14” W × 16” H

  • Weight: 170 lb (77.1 kg)

  • Ambient Temperature: −20 °C to +40 °C

  • Cooling: External fan (TEFC)

  • Certifications: UL, CSA, RoHS compliant

  • Protection: IP54 (dust‑protected, splash‑resistant)

Performance and Reliability

The M3774T features high‑quality ball bearings, low‑loss electrical steel laminations, and a balanced rotor for smooth, vibration‑free operation. The TEFC design ensures long service life in harsh industrial environments, while Class F insulation provides robust thermal tolerance for continuous or cyclic loads. It is suitable for use with VFDs, offering stable performance across a wide speed range and reducing energy consumption in variable‑speed applications.

Typical Applications

  • General Industrial: Conveyors, pumps, fans, compressors, and machine tools

  • Material Handling: Cranes, hoists, and palletizers

  • HVAC: Large fans and blowers in commercial/industrial buildings

  • Process Equipment: Mixers, agitators, and centrifuges

  • Retrofit/Replacement: Direct replacement for older Baldor‑Reliance motors in existing systems

Ordering and Compatibility Information

  • Part Number: M3774T (replaced by EM3774T)

  • Manufacturer: Baldor‑Reliance (ABB)

  • Status: Discontinued; available as surplus, refurbished, or EM3774T (current model)

  • Compatibility: Directly interchangeable with EM3774T; fits NEMA 215T mounting dimensions

  • Warranty: Standard 1‑year warranty (refurbished units vary)


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