Global one-stop procurement platform for industrial spare parts.
support01@okmarts.com service@okmarts.com hydraulic@okmarts.com
Okmarts.com Online Store, Refrigeration Compressor Price, O&Kmarts Logo
Max 200 characters
Display the website inEN
EN
translate to EN
EN
translate to ES
ES
translate to العربية
العربية
All
VACON
VACON
  • VFD
    VFD
Inovance
Inovance
  • HMI
    HMI
  • VFD
    VFD
  • Memory Cards & Readers
    Memory Cards & Readers
Fuji
Fuji
  • HMI
    HMI
  • VFD
    VFD
  • Transmitter
    Transmitter
  • Circuit Breaker
    Circuit Breaker
  • PLC
    PLC
  • Contactor
    Contactor
  • Surge Protection Device
    Surge Protection Device
  • Industrial Belt
    Industrial Belt
  • Flowmeter
    Flowmeter
  • Fuse
    Fuse
  • Fan
    Fan
  • Relay
    Relay
  • Power Supply
    Power Supply
  • Battery
    Battery
Panasonic
Panasonic
  • Refrigeration Compressors
    Refrigeration Compressors
  • HMI
    HMI
  • Light Curtain
    Light Curtain
  • VFD
    VFD
  • Sensor
    Sensor
  • Gearbox
    Gearbox
  • Contactor
    Contactor
  • PLC
    PLC
  • Electric Motor
    Electric Motor
  • Flowmeter
    Flowmeter
  • Temperature Controller
    Temperature Controller
  • Relay
    Relay
  • Module
    Module
  • Industrial Heater
    Industrial Heater
  • Expansion Valve Coil
    Expansion Valve Coil
  • Resistor
    Resistor
  • Battery
    Battery
  • IC
    IC
  • Air Conditioner
    Air Conditioner
  • Servo Drive
    Servo Drive
  • Servo Motor
    Servo Motor
Yaskawa
Yaskawa
  • Encoder
    Encoder
  • VFD
    VFD
  • PLC
    PLC
  • Servo Drive
    Servo Drive
INVT
INVT
  • VFD
    VFD
All Brands
All Brands
    • a
    • b
    • c
    • d
    • e
    • f
    • g
    • h
    • i
    • j
    • k
    • l
    • m
    • n
    • o
    • p
    • q
    • r
    • s
    • t
    • u
    • v
    • w
    • x
    • y
    • z
    • 3
    • 7
      Top Picks
      • Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
      1/1
      Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
      $ 6,923 .08

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 1
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

      • Specifications
      • Q&A
      • Reviews
      The Siemens Frequency Converter VFD is high quality!

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: Do you offer price matching if I find a lower price elsewhere?

        A: We strive to offer competitive prices to our customers. If you find a lower price for the same product elsewhere, please contact our customer service with the details, and we will review your request on a case-by-case basis.

      • Q: How can I provide feedback or review a product?

        A: You can provide feedback or review a product by accessing the product page and clicking on the "Write a Review" or "Leave Feedback" option. Share your experience and opinions to help other shoppers make informed decisions.

      • Q: Are my personal details shared with third parties?

        A: We prioritize the privacy and security of your personal information. We do not share your details with third parties without your consent, except in cases where it is necessary for order fulfillment or as required by law.

      View More
      Question has been sent successfully

      Reviews

      • V

        Vere Wadding

        Aug 04, 2025

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        Superb price, fast and affordable shipping.
        Helpful
        Unhelpful
      • D

        Destiny Taylor

        Jun 23, 2025

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        Super fast, amazing service!
        Helpful
        Unhelpful
      • J

        Joseph Clemis

        May 23, 2025

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        It was a beautiful ending to a long journey.
        Helpful
        Unhelpful
      • A

        Andrew McGlynn

        Mar 01, 2025

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        Just the way I like it, quick and painless.
        Helpful
        Unhelpful
      • C

        Chris Mazur

        Nov 14, 2024

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        We're on the right track.
        Helpful
        Unhelpful
      • A

        Amy Lemery

        Oct 27, 2024

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        Great prices
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      Siemens VFD Frequency Converter 6SE6440-2UC31-8EA1

      $ 6,923 .08
      Click here to view shipping costs.

      ✔ In Stock (Can ship in 5-7 days)

      Quantity
      MOQ : 1
      Payment Methods
      T/T pay VISA pay mastercard pay Diners Club pay Discover pay JCB pay American Express pay Stripe pay PayPal pay Google pay Apple pay Link pay venmo pay
      • Online Support 24/7

      • 12 Months Warranty for New Products

      • 30 Days Money Back Guarantee

      People who bought this item also viewed

      New In stock for sale, Siemens Frequency Converter VFD 6SL3210-1KE17-5AF1

      Siemens Frequency Converter VFD 6SL3210-1KE17-5AF1

      US$867.19
      New In stock for sale, Siemens Frequency Converter VFD 6SL3120-1TE13-0AD0

      Siemens Frequency Converter VFD 6SL3120-1TE13-0AD0

      US$2656.25
      New In stock for sale, Siemens Frequency Converter VFD 6SL3120-1TE26-0AC0

      Siemens Frequency Converter VFD 6SL3120-1TE26-0AC0

      US$9609.38
      New In stock for sale, Lenze Frequency Converter VFD E84AVSCE3024SBS

      Lenze Frequency Converter VFD E84AVSCE3024SBS

      US$3392.31
      New In stock for sale, Chint Frequency Converter VFD NVF3-37/TS4

      Chint Frequency Converter VFD NVF3-37/TS4

      US$2082.89
      New In stock for sale, BEST VFD Frequency Converter FC300-4.0G-T4-B4

      BEST VFD Frequency Converter FC300-4.0G-T4-B4

      US$403.85
      New In stock for sale, Schneider Frequency Converter VFD ATV930C11N4

      Schneider Frequency Converter VFD ATV930C11N4

      US$6900.00
      New In stock for sale, Yaskawa Servo Motor SGMPS-02ACA4B

      Yaskawa Servo Motor SGMPS-02ACA4B

      US$770.00
      New In stock for sale, Yaskawa Servo Drive SGDM-15ADA-V

      Yaskawa Servo Drive SGDM-15ADA-V

      US$1326.92
      New In stock for sale, CONCH HMI HM-730S

      CONCH HMI HM-730S

      US$937.50
      New In stock for sale, HENGSTLER Encoder RI58-O/360AS.41RB

      HENGSTLER Encoder RI58-O/360AS.41RB

      US$326.92
      New In stock for sale, COSEL Power Supply PBA75F-12-CT

      COSEL Power Supply PBA75F-12-CT

      US$324.22
      New In stock for sale, Sinfonia PLC C10-06MVF1

      Sinfonia PLC C10-06MVF1

      US$253.08
      New In stock for sale, MITSUBISHI Spindle Amplifier MDS-DM2-SPV2-10080

      MITSUBISHI Spindle Amplifier MDS-DM2-SPV2-10080

      US$11538.46
      New In stock for sale, Lexar Secure Digital Memory Card Lexar 256GB 160MBs

      Lexar Secure Digital Memory Card Lexar 256GB 160MBs

      US$191.92
      New In stock for sale, JK Relay JKAC4C75A-2FB100

      JK Relay JKAC4C75A-2FB100

      US$320.46
      New In stock for sale, FIAMM Battery SMG/S 265

      FIAMM Battery SMG/S 265

      US$1269.23

      Customers frequently viewed

      New In stock for sale, IWAYA DENKI Water Pump 25CJT0752

      IWAYA DENKI Water Pump 25CJT0752

      US$2307.69
      New In stock for sale, Panasonic Servo Motor MHMF022L1V2M

      Panasonic Servo Motor MHMF022L1V2M

      US$653.85
      New In stock for sale, Honeywell Solenoid Valve VE4025B1045

      Honeywell Solenoid Valve VE4025B1045

      US$334.62
      New In stock for sale, ROTEN Mechanical Seal 8E5K-22-X

      ROTEN Mechanical Seal 8E5K-22-X

      US$384.62
      New In stock for sale, SANDSUN Overload Pump VA08H-760

      SANDSUN Overload Pump VA08H-760

      US$1568.40
      New In stock for sale, GS Battery 6-QW-60(450)-(55D23L-KR)

      GS Battery 6-QW-60(450)-(55D23L-KR)

      US$646.15
      New In stock for sale, Rechi Compressor 44R273A

      Rechi Compressor 44R273A

      US$341.00
      New In stock for sale, Bosch Rexroth Linear Guideway Runner Block R165381920

      Bosch Rexroth Linear Guideway Runner Block R165381920

      US$107.69
      New In stock for sale, MINDMAN Air Cylinder MCQV2-11-40-200

      MINDMAN Air Cylinder MCQV2-11-40-200

      US$88.46
      New In stock for sale, Mitsubishi Compressor YB645WTG

      Mitsubishi Compressor YB645WTG

      US$549.00
      New In stock for sale, ASHUN Solenoid Valve AHD-G02-3C3-AC220V-20

      ASHUN Solenoid Valve AHD-G02-3C3-AC220V-20

      US$140.38
      New In stock for sale, CKD Air Cylinder MRL2-L-16-50

      CKD Air Cylinder MRL2-L-16-50

      US$237.69
      New In stock for sale, Honeywell Expansion Valve TLK-00085

      Honeywell Expansion Valve TLK-00085

      Contact Us
      New In stock for sale, KOGANEI Solenoid Valve 110-4E1-J63

      KOGANEI Solenoid Valve 110-4E1-J63

      US$57.70
      New In stock for sale, Texas Instruments TI IC Integrated Circuit SN65176BDR

      Texas Instruments TI IC Integrated Circuit SN65176BDR

      US$19.33
      New In stock for sale, Copeland Compressor 4DKNR22ML-TSE-C55

      Copeland Compressor 4DKNR22ML-TSE-C55

      Contact Us
      New In stock for sale, Bristol Compressor H92G184DPE

      Bristol Compressor H92G184DPE

      US$2138.03
      New In stock for sale, ESTUN Servo Drive PRONET-E-30D

      ESTUN Servo Drive PRONET-E-30D

      US$1230.77
      New In stock for sale, Eaton Vickers Vane Pump VTM-42A-60-70-12-F07-L38-14

      Eaton Vickers Vane Pump VTM-42A-60-70-12-F07-L38-14

      Contact Us
      New In stock for sale, MABUCHI Electric Motor RS-365PW-16120

      MABUCHI Electric Motor RS-365PW-16120

      US$3.85

      Recent related posts

      What kind of knowledge is choosing an air compressor

      09/06/2020

      What kind of knowledge is choosing an air compressor

      The air compressor market is mixed. There are all kinds of air compressors of all brands, and consumers will inevitably be confused. How to distinguish between true and false, how to distinguish between good and bad,

      Why does refrigeration equipment particularly emphasize installation

      07/23/2020

      Why does refrigeration equipment particularly emphasize installation

      Hidden danger 1: The refrigerant pipe enters dust and impurities<br></br> Dust and impurities in the refrigerant pipeline will cause the effect of the central air conditioner to decrease, increase the wear of the central air conditioner compressor, and cause the central air conditioner to block and affect the cooling effect.<br></br><br></br>

      Refrigeration system failure symptoms

      09/21/2020

      Refrigeration system failure symptoms

      Symptoms of refrigeration system failure         1. Detection of pressure and temperature of refrigeration system   (1) The pressure concept of the refrigeration system The refrigeration system can be divided into high and low pressure during operation. The high pressure section is from the discharge port of the compressor to before the throttle valve. This section is called the evaporation pressure.

      Compressor companies have caused the misunderstanding of killing, how many tricks have you hit

      09/09/2020

      Compressor companies have caused the misunderstanding of killing, how many tricks have you hit

      In recent years, many machinery manufacturing companies, including the compressor industry, have suffered unprecedented tests. Some are not adaptable due to the transformation of the economic system, and there are also "secret injuries" from the company’s own business strategy.

      How to solve the problem of poor oil return of screw chiller

      07/08/2020

      How to solve the problem of poor oil return of screw chiller

      1. What is the cause of the poor oil return of the screw chiller?    Generally speaking, the reason for the poor oil return of the screw chiller is mainly due to the phenomenon of the gas mixture of lubricating oil and refrigerant during the operation. Specifically, in the operation of the refrigeration system, encountering the miscibility of the refrigerant and the refrigerator lubricating oil will cause the lubricant in the refrigeration compressor to run and the refrigerant will be discharged into the condenser in the form of gas mist and droplets.

      Summary and development of scroll refrigeration compressor technology

      06/14/2020

      Summary and development of scroll refrigeration compressor technology

      Summary and development of scroll refrigeration compressor technology The scroll refrigeration compressor is a new type of refrigeration compressor that has only been practical for more than ten years. It is currently the most advanced compressor with a ﰸ2䀀ᅵ皥䖒皦즠Ʋ娼ི㲈Ʋ䌁皦隆ᮔDž༬皧婆ིЀ呄ᠾ鹨់༹皧ࠄ00븹먱댁珵理뛐珵Љ䕄ྦ￿￿뤂ᐱ變뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់變ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ᅵ皥ب巠皱㙲皦忈皱

      The hazards and causes of high exhaust temperature of cold storage compressor

      08/02/2020

      The hazards and causes of high exhaust temperature of cold storage compressor

      The discharge temperature of cold storage compressors should generally be 15~30℃ lower than the flash point of the lubricant, and not too high.

      Operation flowchart of cold chain cold storage management system

      07/30/2020

      Operation flowchart of cold chain cold storage management system

      In recent years, the growth of people's demand for fresh food has promoted the development of the cold storage industry, and at the same time has brought many problems and challenges. For example, there are too many idle cold storage resources;

      dafoss low-pressure

      01/15/2021

      dafoss low-pressure

      Differential setting on low pressure control too low. Solution: Area Low pressure System Part Compressor Symptom Compressor running time too short Potential Cause Differential setting on low pressure contol too low. Solution Increase the differ器2䀀

      Cooling Methods for DC Charging Piles and Selection of Cooling Fans

      01/05/2024

      Cooling Methods for DC Charging Piles and Selection of Cooling Fans

      Compared to other power sources, charging stations (charging piles) have much greater heat dissipation requirements, making the thermal design of the system extremely strict.

      • Welcome to O&Kmarts

        Is there anything we can help?

        Email us
      • Feedback

      Join in

      Join in to enjoy exclusive discounts and give you greater discounts

      See More About O&Kmarts Member
      Sign up now

      Common Problem

      Payment Methods
      Shipping Guide
      Sales and Refund Policy
      FAQs

      About O&Kmarts

      About Us
      Membership

      Website Terms

      Privacy Policy
      Terms Of Use
      Bidding Agreement
      Review Rules

      Customer Service

      support01@okmarts.com
      service@okmarts.com
      hydraulic@okmarts.com
      +86-28-84166335
      GMT+08:00 Mon-Fri, 9:00 AM-7:00 PM
      Customer Feedback

      POPULAR PRODUCTS :

      LS VFD Fuji VFD Delta VFD TOSHIBA VFD Panasonic VFD Danfoss VFD GEFRAN SIEI VFD INVT VFD VACON VFD Inovance VFD NXL00315C2H1SSS00AA NXL00315C2H1SSS00AA NXL00315C2H1SSS00AA ACSM1-04AM-031A-4 05F5B3A-090A 25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 1yc32axd ava2490zxt caj4461a danfoss mt22jc4ave dp200a2123xbt Ebmpapst G1G140-AW31-42 EMG Servo Valve SV 1-10/16/315/6 Huaguang ATA80X IMI Norgren 9710505.4200.024.00 jiaxipera TU1112Y kd1208pts1 Mitsubishi ANB52FKFMT Mitsubishi JH521YEB MSME012G1U PARKER 8F-DY8L-T-SS R2AA04010FXH00M Samsung MSA4A1Q-L1B sm100s4vc SMC AS2200-02S-X785 Ziehl Abegg RH63N-VDK.7M.AR

      Disclaimer: All brand names, model or type numbers or marks listed on the website are owned by their respective manufacturers. These terms are used for identification purposes only and are not intended to indicate affiliation with OEM companies. Product pictures shown on the website are for illustrative purposes only and the actual item may vary in design, specification, etc. Confirm at the time of purchase if you are unsure.

      © eCommerce. 2017-2025. All Rights Reserved
      © eCommerce. 2017-2025. All Rights Reserved
      Press and drag the mouse to start taking a screenshot