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
Beckhoff
Beckhoff
  • PLC
    PLC
  • Module
    Module
  • Servo Drive
    Servo Drive
Omron
Omron
  • Encoder
    Encoder
  • Light Curtain
    Light Curtain
  • VFD
    VFD
  • Sensor
    Sensor
  • PLC
    PLC
  • Transformer
    Transformer
  • Optical Fiber Amplifier
    Optical Fiber Amplifier
  • Fan
    Fan
  • Digital Display Controller
    Digital Display Controller
  • Module
    Module
  • Battery
    Battery
  • Switch
    Switch
B&R
B&R
  • PLC
    PLC
  • Servo Drive
    Servo Drive
  • Module
    Module
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
Schneider
Schneider
  • HMI
    HMI
  • Light Curtain
    Light Curtain
  • VFD
    VFD
  • Soft Starter
    Soft Starter
  • Actuator
    Actuator
  • Transmitter
    Transmitter
  • Power Supply
    Power Supply
  • Transformer
    Transformer
  • Sensor
    Sensor
  • Circuit Breaker
    Circuit Breaker
  • PLC
    PLC
  • Contactor
    Contactor
  • Surge Protection Device
    Surge Protection Device
  • Fuse
    Fuse
  • Relay
    Relay
  • Module
    Module
  • Resistor
    Resistor
  • Battery
    Battery
  • Electric Motor
    Electric Motor
Allen Bradley
Allen Bradley
  • Servo Drive
    Servo Drive
  • Servo Motor
    Servo Motor
  • Light Curtain
    Light Curtain
  • VFD
    VFD
  • Soft Starter
    Soft Starter
  • Circuit Breaker
    Circuit Breaker
  • Encoder
    Encoder
  • Contactor
    Contactor
  • PLC
    PLC
  • Module
    Module
  • Relay
    Relay
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
      1/0
      EMERSON Controller Module ALPFN21A42ML
      $ 37,202 .50

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

      Quantity
      MOQ : 1
      Your order is in big value,so we will provide you with one-on-one customer service.
      Please click Send us the order information , we will contact you as soon as possible !
      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 EMERSON Controller Module is high quality!

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: How can I cancel or modify an order?

        A: If you need to cancel or modify an order, please contact our customer service team as soon as possible. We will do our best to accommodate your request based on the order status and feasibility.

      • Q: Do you have any recommended alternative products?

        A: Yes, we have a range of recommended alternative products available. If you're looking for options similar to a particular product, our website or customer service representatives can provide you with suitable recommendations based on your preferences and needs.

      • Q: What should I do if a product is lost or damaged during shipping?

        A: We purchase shipping insurance for every order to ensure the safety of the products during transportation. If the products are lost or damaged, please contact our customer service team promptly. We will assist you in resolving the issue and provide appropriate compensation.

      View More
      Question has been sent successfully

      Reviews

      • A

        Anonymous user

        Nov 25, 2022

        EMERSON Controller Module ALPFN21A42ML
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      EMERSON Controller Module ALPFN21A42ML

      $ 37,202 .50
      Click here to view shipping costs.

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

      Quantity
      MOQ : 1
      Your order is in big value,so we will provide you with one-on-one customer service.
      Please click Send us the order information , we will contact you as soon as possible !
      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, Emerson Module KJ3231X1-BA1

      Emerson Module KJ3231X1-BA1

      US$499.95
      New In stock for sale, Emerson Module KJ3244X1-BA1

      Emerson Module KJ3244X1-BA1

      US$850.00
      New In stock for sale, Emerson Module KJ3208X1-BA1

      Emerson Module KJ3208X1-BA1

      US$794.75
      New In stock for sale, Emerson Module KJ3201X1-BJ1

      Emerson Module KJ3201X1-BJ1

      US$470.00
      New In stock for sale, TERASAKI Module AOR-1CS-AS

      TERASAKI Module AOR-1CS-AS

      US$381.28
      New In stock for sale, TERASAKI Module ESM-104 S-N

      TERASAKI Module ESM-104 S-N

      US$3098.71
      New In stock for sale, YASKAWA Module JZNC-XRK01

      YASKAWA Module JZNC-XRK01

      US$199.69
      New In stock for sale, TERASAKI Module EMI-103

      TERASAKI Module EMI-103

      US$400.86
      New In stock for sale, SIEMENS Servo Motor 1FK6042-6AF71-1TB0-Z

      SIEMENS Servo Motor 1FK6042-6AF71-1TB0-Z

      US$1923.08
      New In stock for sale, Sanyo Denki Servo Drive PY9A300U0XXXC04

      Sanyo Denki Servo Drive PY9A300U0XXXC04

      US$807.69
      New In stock for sale, HENGSTLER Encoder RI76TD/2048ED.1O15KF

      HENGSTLER Encoder RI76TD/2048ED.1O15KF

      US$648.26
      New In stock for sale, Omron PLC CP1W-40EDT1

      Omron PLC CP1W-40EDT1

      US$770.50

      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, AirTAC Air Cylinder SCD40X325S

      AirTAC Air Cylinder SCD40X325S

      US$60.00
      New In stock for sale, Fuji VFD Frequency Converter FVR5.5E11S-4EN

      Fuji VFD Frequency Converter FVR5.5E11S-4EN

      Contact Us
      New In stock for sale, Shimax Temperature Controller MAC10D-MSF-2N

      Shimax Temperature Controller MAC10D-MSF-2N

      US$215.38
      New In stock for sale, Oriental Motor Vexta Reduction Drive Gearbox Speed Reducer GFS5G50FR

      Oriental Motor Vexta Reduction Drive Gearbox Speed Reducer GFS5G50FR

      US$241.54
      New In stock for sale, KCL Vane Pump VQ315-125-31-F-RAAA-02

      KCL Vane Pump VQ315-125-31-F-RAAA-02

      US$1153.85
      New In stock for sale, EPCOS Capacitor 1000V 0.15UF

      EPCOS Capacitor 1000V 0.15UF

      US$0.92
      New In stock for sale, NSK Bearing 7932 CTYNSULP4

      NSK Bearing 7932 CTYNSULP4

      US$1371.15
      New In stock for sale, AirTAC Air Cylinder SGC200X800

      AirTAC Air Cylinder SGC200X800

      US$601.92
      New In stock for sale, Bristol Compressor H83C323DBDK

      Bristol Compressor H83C323DBDK

      Contact Us
      New In stock for sale, NEC Capacitor 5.5V 1F

      NEC Capacitor 5.5V 1F

      Contact Us

      Recent related posts

      What is an Electronic Expansion Valve?

      11/07/2022

      What is an Electronic Expansion Valve?

      The electronic expansion valve is a kind of the expansion valve. It uses the electrical signal generated by the adjusted parameters to control the voltage or current applied to the expansion valve, thereby achieving the purpose of adjusting the liquid supply.

      VFD Basics - How VFD Controls the Motor Running?

      06/27/2025

      VFD Basics - How VFD Controls the Motor Running?

      When the main circuit of the VFD is connected with the power line, in order to control the motor, it is necessary to connect the surrounding control circuit to the relevant terminals

      How to Replace the Solenoid Valve Coil

      07/12/2024

      How to Replace the Solenoid Valve Coil

      The solenoid valve coil is one of the important parts of the solenoid valve. Once there is a problem, it will seriously affect the normal use of the solenoid valve.

      Top 10 Brands of Linear Motors

      08/15/2022

      Top 10 Brands of Linear Motors

      There are many brands of linear motors in the world. The following are some well-known brands of linear motors from countries and regions like Europe, America, Japan, Asia, etc. Hope it will be helpful to you.

      What is a Thermostatic Expansion Valve?

      11/05/2022

      What is a Thermostatic Expansion Valve?

      The thermostatic expansion valve (TXV or TEV), also called the thermal expansion valve, controls the openness degree through the control of the superheat of the gaseous refrigerant at the outlet of the evaporator.

      Liquid Cooling vs. Air Cooling: Which is Better for PC CPU Cooling?

      08/28/2025

      Liquid Cooling vs. Air Cooling: Which is Better for PC CPU Cooling?

      If you are a computer enthusiast, or a computer user, you must know the importance of computer coolers. A computer cooler is a device used to reduce the internal temperature of a computer.

      Working principle of sliding vane compressor_Features of sliding vane compressor

      06/21/2020

      Working principle of sliding vane compressor_Features of sliding vane compressor

      Working principle of sliding vane compressor <img src="{{media url=&quot;magefan_blog/Working_principle_of_scroll_compressor_Characteristics_of_scroll_compressor.jpg&quot;}}" alt="" />    Air is sucked in through a filter and a regulating proportional valve. The regulating valve is mainly used to regulate the pressure chamber formed by the rotor and slide of the air cylinder. The rotor rotates eccentrically with respect to the cylinder, the valve plate is installed in the rotor groove, and the slider is pushed to the cylinder wall by centrifugal force.

      6 Common Electric Motor Failures and Solutions

      11/04/2022

      6 Common Electric Motor Failures and Solutions

      Electric motors are widely applied in production, transmission, and distribution. But failures could occur due to wrong operation, insufficient maintenance, etc

      In the hot summer, be wary of the 5+X hidden dangers of cold storage

      08/05/2020

      In the hot summer, be wary of the 5+X hidden dangers of cold storage

      With Chinese economic and social development and the continuous improvement of people’s living standards, the cold chain logistics industry has obtained unprecedented development opportunities.

      Is the core technology of air conditioning monopolized by Japan

      01/14/2021

      Is the core technology of air conditioning monopolized by Japan

      Is the core technology of air conditioning monopolized by Japan Household air-conditioning compressors are not dominated by Japanese manufacturers. The range of Japanese compressors with a high share is the large-capacity variable-frequency inverter r器2䀀ᅵ皥䖒皦즠Ʋ奌ི㲈Ʋ䌁皦ᮔDž༬皧奖ིЀ呄ᠾ鹨់༹皧ࠄ00령ꐱ댁珵뛐珵Љ䕄ྦ￿￿뤂ᐱ뚜珵ᴴᏩ呄ᠾ퍘ᒥ鹨់ᩄꋔྦ瑉浥巠皱㙲皦抐皱巠皱੨皦柘皱ᅵ皥ب巠皱㙲皦忈皱੨皦柘皱즠Ʋǜ勁皦즠Ʋب

      • 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 :

      Kuroda Module Fanuc Module Murr Elektronik Module Beckhoff Module Omron Module Allen Bradley Module LS Module Mitsubishi Module WAGO Module B&R Module 1785-ENET-C EL7332 SKiiP 25AC12T2 EL2819 EL4124 25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 ad0824ub a71gl CKD 4TB319-00-M1L-6 C-R221H6R D2D160-CE02-11 Eaton Vickers KSDG4V-3-92L-40-M-U1-H7-11 fuji sc 4 0 h23a463dbea HAWE DR2-1 Hitachi EKVDC12V Huaguang ATA80X HWAYUN DB10-1-50-31.5 LESER 4412.4512 ODE 21PW4K0V120 Parker Sporlan 111180 Rexroth 5610111010 RH313VADT RS199VHRC Tecumseh TAH4524T tfh2480z THV310FEEC

      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