VEM 3-Phase Electric Motor : K21R 280 M4 WS - 1997

ReflowX SKU: REF-1007

Product Details

Quantity

6
Availability (Lead Time)

0-2 Weeks
Product Location

United Arab Emirates
Condition

Surplus
OEM

VEM motors GmbH
Equipment code

CFIHOS-30000340

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Short Description

Manufacturer: VEM motors GmbH Made in: Germany Motor Type: 3-Phase Induction Motor

Description

Manufacturer Information

Manufacturer: VEM motors GmbH

Country of Origin: Germany

Model: K21R 280 M4 WS

Motor Type: 3-Phase Asynchronous (Induction) Motor

Mounting Designation: IM B3 (Foot-mounted)

Enclosure Protection Class: IP55 (Dust-protected & water-jet resistant)

Weight: 380 kg

Year of Manufacture: June 1997

⚙️ Electrical Specifications

Power Output

Rated Power: 55 kW

Voltage / Frequency / Current / Speed

Voltage	Frequency	Current (A)	Speed (RPM)
380 V	50 Hz	97.0 A	1480 RPM
400 V	50 Hz	92.5 A	1477 RPM
660 V	50 Hz	53.5 A	1477 RPM
380 V	60 Hz	105 A	1775 RPM
400 V	60 Hz	106 A	1775 RPM
460 V	60 Hz	92.0 A	1775 RPM

Power Factor (Cos φ)

50 Hz: 0.87 – 0.88

60 Hz: 0.86 – 0.88

Efficiency (η)

50 Hz: 90.4% – 90.7%

60 Hz: 90.6%

🌀 Mechanical & Thermal Specifications

Duty Type: S1 (Continuous Operation)

Insulation Class: F (155°C max winding temperature)

Cooling Method: TEFC (Totally Enclosed Fan-Cooled) – standard for IP55

Bearing Types:

Drive End (DE): 6317 C3

Non-Drive End (NDE): 6317 C3

📐 Construction Details

Mounting Type: Horizontal Foot Mount (IM B3)

Frame Size: 280 (from model K21R 280)

Core Design: High-efficiency laminated core with precision-balanced rotor

Fan & Housing: Ribbed cast iron frame with external cooling fan

Standards & Compliance

Manufacturing Standard: DIN EN 60034 / IEC 60034

Enclosure Class: IP55

Thermal Protection: Optional based on installation requirements

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Technical Details

Model Number	K21R 280 M4 WS
Year of Manufacturing	1997
Model Number	K21R 280 M4 WS
Year of Manufacturing	1997
Weight	380 kg
Voltage	380 V to 460 V
CFIHOS ID	CFIHOS-30000340
Color	Blue
ISO 15926 Pt 4	2752
PCA RDS Code	RDS415124
CFIHOS ID	CFIHOS-30000340
Direction of Rotation	Bidirectional
IFC Class	IfcElectricMotor
Explosion Protection Gas Group	Group IIB
Explosion Protection Temperature Class	Class T4
Explosion Protection Zone	Zone 1 and Zone 2
Normal Output Power	90 kW
UNSPSC Code	26101600

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