Nidec Leroy-Somer PLSES315L Three-Phase AC Induction Motor - 2021

The PLSES315L model from Nidec Leroy-Somer is a premium industrial-grade, high-speed 2-pole (3~) AC induction motor engineered for continuous-duty operations in harsh environments. Manufactured in France and built in compliance with IEC 60034, this motor is constructed with a rugged 315L frame size, designed to deliver reliable performance in high-demand applications such as large pumps, compressors, blowers, and process drives.

The motor employs IC 411 cooling—Totally Enclosed Fan Cooled (TEFC)—providing full protection from dust ingress and powerful water jets, ideal for outdoor or industrial settings. Its insulation class F ensures thermal durability up to 155°C, while the ambient temperature rating is +40°C.

The motor operates at standard synchronous speeds of ~2980–3000 RPM (50 Hz) and ~3550–3600 RPM (60 Hz). The motor includes high-performance 6316 C3 deep groove ball bearings on both drive and non-drive ends, allowing for smooth operation under high radial and axial loads with temperature expansion tolerances.

With a gross weight of 1030 kg, the PLSES315L is typically supplied in B3 or B35 mounting configurations (foot or foot+flange), although the specific mounting type is not defined in the supplied data. Designed for S1 continuous duty, this motor is well-suited to demanding, round-the-clock industrial applications.

Specifications:

– Manufacturer: Nidec Leroy-Somer
– Model: PLSES315L
– Serial Number: 9755444 H21 001
– Country of Origin: France
– Year of Manufacture: 2021
– Motor Type: Three-phase AC induction motor (3~)
– Pole Configuration: 2-pole (high-speed)
– Frame Size: 315L
– Rated Speed (Estimated):
 • ~2980–3000 RPM @ 50 Hz
 • ~3550–3600 RPM @ 60 Hz
– Mounting Type: Typically B3 or B35 (not explicitly stated)
– Cooling Method: IC 411 (TEFC – Totally Enclosed Fan Cooled)
– Enclosure Type: Dust-tight, water-jet resistant (TEFC)
– Insulation Class: F (155°C)
– Ambient Temperature Limit: 40°C
– Service Duty: Assumed S1 (Continuous Duty)
– Bearings:
 • Drive End (DE): 6316 C3
 • Non-Drive End (NDE): 6316 C3
– Bearing Type: Deep groove ball bearings with C3 clearance
– Motor Weight: 1030 kg
– Standard Compliance: IEC 60034
– Applications: Pumps, compressors, fans, high-inertia drives
– Construction: High-efficiency industrial motor with robust mechanical design
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