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 MD-500-U
      1/1
      TRIAD Transformer MD-500-U
      $ 198 .98

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

      Quantity
      MOQ : 2
      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
      Maximum Power:500 VA
      Input Voltage1:120 V
      Output Voltage2:120 V
      Input Voltage Tolerance (Power Cord):+/-10 %
      Frequency (Power Cord):50 Hz/60 Hz

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: Are there any restrictions on using multiple discount codes for a single order?

        A: The use of multiple discount codes for a single order may be subject to certain restrictions. Please refer to the terms and conditions of the discount codes or contact our customer service team for more information.

      • Q: Can I cancel or modify an order after it has been placed?

        A: We understand that circumstances may change, and you may need to cancel or modify an order. Please contact our customer service as soon as possible with your order details, and we will assist you based on the order status and feasibility.

      • Q: Can I return or exchange a product if I'm not satisfied?

        A: Yes, we have a hassle-free return and exchange policy. If you're not satisfied with your purchase, you can return the product within a specified timeframe and receive a refund or exchange based on the terms and conditions.

      View More
      Question has been sent successfully

      Reviews

      • A

        Anthony Harris

        Feb 19, 2026

        TRIAD Transformer MD-500-U
        Quick and hassle-free ordering experience.
        Helpful
        Unhelpful
      • J

        John Yon

        Dec 24, 2025

        TRIAD Transformer MD-500-U
        Quick turnaround, spot on parts.
        Helpful
        Unhelpful
      • E

        ED MARSHALL

        Nov 30, 2025

        TRIAD Transformer MD-500-U
        Got me what I needed and quick service, exactly what I needed! Thanks OKmarts!
        Helpful
        Unhelpful
      • C

        Carolyn Matthews

        Jan 21, 2024

        TRIAD Transformer MD-500-U
        It arrived promptly, and it fits perfectly.
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        TRIAD Transformer MD-500-U
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      TRIAD Transformer MD-500-U

      $ 198 .98
      Click here to view shipping costs.

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

      Quantity
      MOQ : 2
      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, Delixi Transformer BK-200

      Delixi Transformer BK-200

      US$336.08
      New In stock for sale, Honeywell Transformer ZT812

      Honeywell Transformer ZT812

      US$346.25
      New In stock for sale, Honeywell Transformer ZT930

      Honeywell Transformer ZT930

      US$192.25
      New In stock for sale, Siemens Circuit Breaker 3VL5763-2TF46-0AA0

      Siemens Circuit Breaker 3VL5763-2TF46-0AA0

      US$3496.09
      New In stock for sale, TENGEN Contactor CJ20-100A 220V

      TENGEN Contactor CJ20-100A 220V

      US$207.69
      New In stock for sale, DEHN Surge Protection Device DR M 2P 255

      DEHN Surge Protection Device DR M 2P 255

      US$339.69
      New In stock for sale, Ferraz Shawmut Fuse D70SF120V125QF

      Ferraz Shawmut Fuse D70SF120V125QF

      US$423.08
      New In stock for sale, SIEMENS Relay 3UG4511-1BN20

      SIEMENS Relay 3UG4511-1BN20

      US$339.69
      New In stock for sale, UniOhm Resistor 0603WAF110KT5E

      UniOhm Resistor 0603WAF110KT5E

      US$7.69

      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, Copeland Compressor ZB76KCE-TF7-960

      Copeland Compressor ZB76KCE-TF7-960

      Contact Us
      New In stock for sale, OMRON Relay G5Q-1A DC5V

      OMRON Relay G5Q-1A DC5V

      US$1.35
      New In stock for sale, YUKEN Vane Pump F-PV2R23-47-94-F-REAA-41

      YUKEN Vane Pump F-PV2R23-47-94-F-REAA-41

      Contact Us
      New In stock for sale, Parker Proportional Valve D41FBE02FC4NF0014

      Parker Proportional Valve D41FBE02FC4NF0014

      Contact Us
      New In stock for sale, OSHON Vane Pump VDC-2B-F25B-20

      OSHON Vane Pump VDC-2B-F25B-20

      Contact Us
      New In stock for sale, CHINT Switch QC36-30TA

      CHINT Switch QC36-30TA

      US$115.38
      New In stock for sale, KYOCERA Tool for Metal Cutting VBGT160402R-Y PV720

      KYOCERA Tool for Metal Cutting VBGT160402R-Y PV720

      US$15.88
      New In stock for sale, Sanyo Denki Fan 9G1248P1G03

      Sanyo Denki Fan 9G1248P1G03

      US$22.16
      New In stock for sale, SAMWHA Capacitor 250V 150UF

      SAMWHA Capacitor 250V 150UF

      US$0.30
      New In stock for sale, Bristol Compressor H79B22UDBEK

      Bristol Compressor H79B22UDBEK

      Contact Us

      Recent related posts

      Knowledge points of HVAC cold and heat source design

      08/07/2020

      Knowledge points of HVAC cold and heat source design

      1.The design position of the pump in the system: Generally speaking, the chilled water pump should be located at the front end of the chiller, and the chilled water coming back from the end is pumped back to the chiller through the chilled water pump;

      Carry out special inspection of centralized air conditioning and ventilation systems

      06/14/2020

      Carry out special inspection of centralized air conditioning and ventilation systems

      Carry out special inspection of centralized air conditioning and ventilation systems Recently, the Keqiao District Sanitary Supervision Department has carried out special inspections

      How to Debug The Input Level Transmitter?

      04/22/2022

      How to Debug The Input Level Transmitter?

      Generally, the input level transmitter will be accurately corrected according to the range marked on the nameplate when leaving the factory.

      Squirrel Cage Induction Motor Vs Wound Rotor Induction Motor: Rotor Structure, Pros and Cons

      12/25/2024

      Squirrel Cage Induction Motor Vs Wound Rotor Induction Motor: Rotor Structure, Pros and Cons

      The three-phase induction motor consists of two basic parts: the stator and the rotor.

      Troubleshooting tips for bad cooling effect!

      08/13/2020

      Troubleshooting tips for bad cooling effect!

      After the inverter reaches the temperature point, it reduces the frequency and causes the outlet air temperature to rise. A small number of users complain about the poor cooling effect of the air

      Use and principle of inverter air conditioner and ordinary air conditioner

      08/19/2020

      Use and principle of inverter air conditioner and ordinary air conditioner

      Inverter air conditioners are based on ordinary air conditioners with special inverter compressors, and an inverter control system is added. Its basic structure and cooling principle are exactly the same as ordinary air conditioners.

      What is a Programmable Logic Controller?

      12/26/2022

      What is a Programmable Logic Controller?

      The programmable logic controller (PLC) is a digital operation electronic system specially designed for application in industrial environment.

      Basic principles of data center cooling and energy saving solutions

      08/02/2020

      Basic principles of data center cooling and energy saving solutions

      Each data center has its own characteristics, so there is no technical solution that can be applied to any data center. This document mainly discusses some basic principles and technical issues in data center cooling and energy saving.

      Ten most commonly used parameters of frequency converters

      09/07/2020

      Ten most commonly used parameters of frequency converters

      There are many function parameters of the frequency converter, generally there are dozens or even hundreds of parameters for users to choose. In actual applications, it is not necessary to set and debug each parameter, most of which just need to use the factory settings.

      The most comprehensive analysis of the advantages and disadvantages of these five compressors is worth a look

      06/14/2020

      The most comprehensive analysis of the advantages and disadvantages of these five compressors is worth a look

      There are five main types of compressors, piston compressors, rolling rotor compressors, turbo compressors, screw compressors, and centrifugal compressors. This article briefly introduces the advantages and disadvantages of various compressors.

      • 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 :

      Honeywell Transformer Chint Transformer Siemens Transformer JBK4-160 CTX50-2-R CTX50-2-R TRH1K-42S 50004263-002 25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 ad7524ub aj5515e E3V55CWR00 e50s8 360 3 t 24 FH2511Z GMCC KSN98D32UEZ GMCC PH215M2C-4FT H79A723DBVA Huayi HYB90MHUa IMI Norgren 2401112.4662.024.00 KOGANEI 300-4E1-83-PSL-70W LESER 4592.2494 LG QP425P Nidec D1751P24B8PP340 R2AA04010FXH00M Samsung MSV4A1A-L1B sdr 240 48 SUNON PMD1208PTV3-A sz148t4vc Toshiba KSK103D33UEZ3

      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