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
Honeywell
Honeywell
  • HMI
    HMI
  • Actuator
    Actuator
  • Transmitter
    Transmitter
  • Power Supply
    Power Supply
  • Transformer
    Transformer
  • Expansion Valve
    Expansion Valve
  • Sensor
    Sensor
  • Circuit Breaker
    Circuit Breaker
  • Solenoid Valve
    Solenoid Valve
  • PLC
    PLC
  • Proportional Valve
    Proportional Valve
  • Flame Detector
    Flame Detector
  • Safety Valve
    Safety Valve
  • Combustion Controller
    Combustion Controller
  • Ball Valve
    Ball Valve
  • Bar Code Scanner
    Bar Code Scanner
  • Temperature Controller
    Temperature Controller
  • Relay
    Relay
  • Module
    Module
  • Carbon Dioxide Detector
    Carbon Dioxide Detector
  • Protective Clothing
    Protective Clothing
  • Switch
    Switch
Chint
Chint
  • VFD
    VFD
  • Soft Starter
    Soft Starter
  • Transformer
    Transformer
  • Circuit Breaker
    Circuit Breaker
  • Contactor
    Contactor
  • Fuse
    Fuse
  • Relay
    Relay
Siemens
Siemens
  • HMI
    HMI
  • Light Curtain
    Light Curtain
  • VFD
    VFD
  • Soft Starter
    Soft Starter
  • Transmitter
    Transmitter
  • Transformer
    Transformer
  • Sensor
    Sensor
  • Gearbox
    Gearbox
  • Circuit Breaker
    Circuit Breaker
  • Power Supply
    Power Supply
  • PLC
    PLC
  • Contactor
    Contactor
  • Flame Detector
    Flame Detector
  • Expansion Valve
    Expansion Valve
  • Combustion Controller
    Combustion Controller
  • Fuse
    Fuse
  • Temperature Controller
    Temperature Controller
  • Module
    Module
  • Resistor
    Resistor
  • Battery
    Battery
  • Switch
    Switch
  • Memory Cards & Readers
    Memory Cards & Readers
  • Fan
    Fan
Delixi
Delixi
  • VFD
    VFD
  • Soft Starter
    Soft Starter
  • Air Cylinder
    Air Cylinder
  • Transformer
    Transformer
  • Solenoid Valve
    Solenoid Valve
  • Contactor
    Contactor
  • Fan
    Fan
  • Fuel Water Separator
    Fuel Water Separator
  • Fuse
    Fuse
  • Relay
    Relay
Noratel
Noratel
  • Transformer
    Transformer
TOGI
TOGI
  • Transformer
    Transformer
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
      • TRIAD Transformer F28-040
      1/1
      TRIAD Transformer F28-040
      $ 25 .35

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

      Quantity
      MOQ : 13
      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 TRIAD Transformer is high quality!

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: Do I need to pay for shipping when returning a product?

        A: According to our return policy, if the return is due to product quality issues or our mistake, we will cover the return shipping fee. If it's for other reasons, the return shipping fee may be borne by you. Please refer to our return policy for specific details.

      • Q: How can I check the stock status of a product?

        A: On the product details page, you can check the stock status of the item. If a product is temporarily out of stock, we will restock it as soon as possible or provide a pre-order option.

      • Q: How can I find out about product recalls or safety alerts?

        A: We prioritize the safety of our customers and comply with product recall and safety alert notifications. You can stay informed about product recalls by regularly checking our website's safety alert section or subscribing to relevant product safety authorities' notifications.

      View More
      Question has been sent successfully

      Reviews

      • E

        Eric Hollenbeck

        Aug 10, 2025

        TRIAD Transformer F28-040
        I paid a bit more for a product with a great reputation and quality, and I was happy with my decision.
        Helpful
        Unhelpful
      • C

        Christy D'Armond

        Mar 26, 2025

        TRIAD Transformer F28-040
        It's a wonderful product that exceeded my expectations.
        Helpful
        Unhelpful
      • S

        Scott Overstreet

        Mar 25, 2025

        TRIAD Transformer F28-040
        Logistics is fast and the packaging is very strong! ! !
        Helpful
        Unhelpful
      • M

        Marty Torres

        Jun 23, 2023

        TRIAD Transformer F28-040
        That's fantastic, thanks for the quick turnaround.
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        TRIAD Transformer F28-040
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      TRIAD Transformer F28-040

      $ 25 .35
      Click here to view shipping costs.

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

      Quantity
      MOQ : 13
      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 Transformer 4EM4911-7CB00

      Siemens Transformer 4EM4911-7CB00

      US$172.67
      New In stock for sale, Noratel Transformer SUL120B-460230

      Noratel Transformer SUL120B-460230

      US$1164.06
      New In stock for sale, Siemens Transformer 4AM4041-5AT10-0C

      Siemens Transformer 4AM4041-5AT10-0C

      US$160.07
      New In stock for sale, ABB Circuit Breaker 1SDA054341R1

      ABB Circuit Breaker 1SDA054341R1

      US$625.00
      New In stock for sale, Lovato Contactor 11BF110C0024

      Lovato Contactor 11BF110C0024

      US$644.00
      New In stock for sale, Schneider Surge Protection Device PMF83VT-IT

      Schneider Surge Protection Device PMF83VT-IT

      US$88.56
      New In stock for sale, Ferraz Shawmut Fuse BS236UH25V800P

      Ferraz Shawmut Fuse BS236UH25V800P

      US$161.54
      New In stock for sale, TWIDEC Relay RXM2A-D2

      TWIDEC Relay RXM2A-D2

      US$6.92
      New In stock for sale, EBG Resistor MXP-35-9KR

      EBG Resistor MXP-35-9KR

      US$5.78

      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, Danfoss Compressor SH780B6ACC

      Danfoss Compressor SH780B6ACC

      Contact Us
      New In stock for sale, SOG Oil Seal TC46*68*8

      SOG Oil Seal TC46*68*8

      US$8.85
      New In stock for sale, ENC VFD Frequency Converter EDS2000-4T4500P

      ENC VFD Frequency Converter EDS2000-4T4500P

      Contact Us
      New In stock for sale, Dwyer Switch 670

      Dwyer Switch 670

      US$1646.15
      New In stock for sale, HYUNDAI Contactor HiMX80

      HYUNDAI Contactor HiMX80

      Contact Us
      New In stock for sale, MINDMAN Air Cylinder MCMA-27-16-125-A

      MINDMAN Air Cylinder MCMA-27-16-125-A

      Contact Us
      New In stock for sale, EALY Vane Pump PV2R12-19-53FREAR-40

      EALY Vane Pump PV2R12-19-53FREAR-40

      Contact Us
      New In stock for sale, Copeland Compressor 3DFDF40KE-TFC-001

      Copeland Compressor 3DFDF40KE-TFC-001

      Contact Us
      New In stock for sale, Rexroth Piston Pump R902406367 A10V O 85 DFR /52L-VKC62N00 ES1055

      Rexroth Piston Pump R902406367 A10V O 85 DFR /52L-VKC62N00 ES1055

      Contact Us
      New In stock for sale, SAMSUNG Servo Motor RSMK-12BR1ATK3

      SAMSUNG Servo Motor RSMK-12BR1ATK3

      Contact Us

      Recent related posts

      Sensor basic knowledge and common terms

      09/17/2020

      Sensor basic knowledge and common terms

      1. Sensor: a device or device that can sense the prescribed measurement and convert it into a usable output signal according to a certain rule. Usually composed of sensitive components and conversion components. ① Sensitive element refers to the part of the sensor that can be directly (or responded) to be measured.

      What is Gear Ratio?

      02/01/2023

      What is Gear Ratio?

      Gear ratio, i.e., the reduction ratio of the reducer, refers to the ratio of the instantaneous input speed to the output speed in the reduction mechanism, and is represented by the symbol "i".

      How to switch freely between cooling, heating and dehumidification modes

      07/31/2020

      How to switch freely between cooling, heating and dehumidification modes

      Nowadays, the air conditioner has become a must-have household appliance for every household. In different seasons, for us, we can adjust the temperature with our fingers and realize the switching of different functions.

      Difference between Servo Drive and Stepper Driver

      04/29/2024

      Difference between Servo Drive and Stepper Driver

      This article mainly introduces stepper motor drivers and servo motor drives, and focuses on a detailed comparison between them.

      Treatment method of ammonia refrigerant in refrigeration equipment

      08/11/2020

      Treatment method of ammonia refrigerant in refrigeration equipment

      When low-pressure equipment needs to be overhauled, it is necessary to cut off the connection between the equipment and the refrigeration system, select a channel, use the refrigeration compressor to suck up the ammonia in the equipment,

      Revealed Six Secrets of Low-priced Central Air Conditioning Thermostats

      08/24/2020

      Revealed Six Secrets of Low-priced Central Air Conditioning Thermostats

      According to reports, with the upgrading of central air conditioners in large and medium-sized buildings in China and the rapid growth of household central air conditioners, the market "cake" of central air conditioners is attracting more and more attention.

      The basic theoretical knowledge of air that everyone who uses an air compressor should understand

      09/08/2020

      The basic theoretical knowledge of air that everyone who uses an air compressor should understand

      1 What is air? What is normal air?    Answer: The atmosphere around the earth, we are accustomed to call it air.   The air under the specified pressure of 0.1MPa, temperature of 20°C and relative humidity of 36% is normal air. Normal air is different from standard air in temperature and contains moisture. When there is moisture in the air, once the moisture is separated, the air volume will be reduced.

      Afternoon tea problems often exist in air conditioning design

      09/10/2020

      Afternoon tea problems often exist in air conditioning design

      The author of okmarts.com came into contact with the HVAC engineering design of some design institutes, and compared the "Code for Design of Heating, Ventilation and Air Conditioning"

      The influence of temperature on refrigeration compressor

      07/26/2020

      The influence of temperature on refrigeration compressor

      In summer, the discharge temperature of the compressor is relatively high and cannot be touched by hands. According to national standards, the exhaust temperature of the R22 refrigeration system should not exceed 150 degrees Celsius.

      The correct method and detailed steps of the cooling system of the computer room

      08/04/2020

      The correct method and detailed steps of the cooling system of the computer room

      1. The equipment pipes of the refrigeration system must be drained before operation to remove the welding slag, iron filings, sand and other dirt remaining in the system during the installation process.

      • 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 :

      Chint Transformer Siemens Transformer Honeywell Transformer TRH1K-42S 50004263-002 CTX50-2-R ZE20/5 CTX50-2-R 25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 6078ES ava5535exn Bristol H23B243ABKA CKD 4GA239-06-B-FL288128-3 CKD 4GB239-E2 CKD CVSE2-15A-05-02HSB-3-ST Daikin JT100GCVDKW@T Delta BUC0812VD-02 Ebmpapst G3G160-RO31-04 Hitachi TE800RC3Q9JK Huayi AES30DS JAMICON KF0620B2H-R kd2406ptb1 MAC 117B-501JM Nidec T12E48BS1M7-07 ODE 21H12K0E120 Rechi 39R143C SUN CKCV-XCN SUNON EF75070S1-C430-S9A Tecumseh AW5538E

      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. 2017-2026. All Rights Reserved
      © eCommerce. 2017-2026. All Rights Reserved
      Press and drag the mouse to start taking a screenshot