What is the rated speed of this motor?

The rated speed is 720r/min for 8 poles (low speed) and 1400r/min for 4 poles (high speed).

What wiring modes are supported?

It supports Delta connection for low speed and Double-Star (2Y) connection for high speed.

380V 50Hz Yd Serie Pole-Changing Multi-Speed Three-Phase Asynchronous Motor

Name: 380V 50Hz Yd Serie Pole-Changing Multi-Speed Three-Phase Asynchronous Motor
Brand: Thermal International Co., Ltd.
SKU: 2292286885

Guangdong, ChinaThermal International Co., Ltd.

US$20.00-50.00

50 Pieces

Sample price:US$30.00/piece.Request sample

Product profile

Customization

Available

Application

Industrial, Power Tools

Operating Speed

Multi-Speed

Model NO.

MT-401

Number of Stator

Three-Phase

Species

Yd Serie

Rotor Structure

Squirrel-Cage

Casing Protection

Protection Type

Number of Poles

Pole-Changing 8/4

Starting Mode

Direct on-line Starting

Certification

Model Number

Yd112m-8/4

Rated Voltage

380V

Rated Power

1.5/2.4kw

Rated Current

7.8/6.1A

Frquency

50Hz

Rated Speed

720r/Min (8 Poles )/ 1400r/Min (4 Poles)

Connection

Delta Connection(Low Speed)/Double-Star Connection

Insulation Class

Class B (130℃)

Protection Class

IP44

Duty Cycle

S1 (Continuous Operation)

Cooling Method

IC411 (Self-Fan Cooling)

Transport Package

Carton+Pallet/Wooden Crate Packaging

Specification

YD112M-8/4

Trademark

Thermal International

Origin

China

Production Capacity

5, 000PCS/Week

Key features

Pole-Changing Speed Regulation: Achieves dual speeds (720/1400 r/min) via single-winding pole-changing technology without frequency converters.

High Efficiency and Energy Saving: Rational power matching avoids waste; delivers remarkable energy-saving effects for high/low speed switching.

Direct Replacement for Y-Series: Mounting dimensions consistent with Y-series motors; directly replaces original single-speed motors without modification.

Reliable and Low Maintenance: Simple structure with no additional speed governors; low failure rate and much lower maintenance costs than VFD systems.

Robust Industrial Design: Fully enclosed squirrel-cage structure with IP44 protection and Class B insulation for stable operation in industrial environments.

Wide Power Range Options: Available in power range from 0.37kW to 160kW, covering low-power to industrial models with various pole configurations.

CE Certified Quality: Complies with industry standard JB/T 7127-2010 and holds CE certification for safety and performance assurance.

Versatile Application Scenarios: Ideal for machine tools, conveyors, fans, pumps, and textile equipment requiring stepped speed regulation.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Thermal International Co., Ltd.

Guangdong, China

Business Type: Manufacturer/FactoryExport Year: 2008-09-01Nearest Port: Shenzhen, ningbo and ShanghaiAverage Response Time: ≤2.77hTerms of Payment: LC, T/T, D/P, etc.International Commercial Terms(Incoterms): FOB, EXW, CFR, CIF, FCA

AI-Powered supplier vetting

SummaryThermal International Co., Ltd. is identified as a private manufacturer/factory in Shenzhen, China, specializing in home-appliance heating elements, thermostats, switches, and motors. The supplier reports ISO 9001 certification, six production lines in one operational record, and a separate company description claiming ten assembly lines across three owned factories. It reports 11–20 R&D engineers, 11–20 quality-control staff, and product output information for hot plates, heating elements, and thermostats. Export activity began in 2008, with 51%–70% of total sales from exports and self-operated import/export rights. The supplier states that it supports on-site and third-party inspections, pre-sales consultation, timely delivery, and after-sales service. However, several areas—including outsourcing procedures, inventory, overseas operations, OEM/ODM, SDK-related R&D, quality traceability, customer cases, and current audit validity—remain unverified or explicitly unknown.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory, with a stated factory location in Shenzhen, China. Its reported production infrastructure includes six production lines in one record, while another description claims ten assembly lines across three owned factories, so the exact consolidated factory footprint is inconsistent but manufacturing status is clear.

CertificationsThe supplier reports ISO 9001 certification for its management system. This is explicit evidence of certification holding, although no certificate number, scope, or validity period is provided.

After-Sales capabilityThe supplier states that it provides personalized service from pre-sales consultation through after-sales service, with a sales team offering professional advice and timely delivery. These statements support the existence of an after-sales service commitment, although no service-level details or performance evidence are supplied.

Production capacityThe supplier reports six production lines in one factory record, while its company description states ten assembly lines across three owned factories. It also provides product-specific output quantities for hot plates, heating elements, and thermostats, which explicitly supports established production capacity, although the differing line counts should be clarified.