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
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
GE
GE
  • Power Supply
    Power Supply
  • Circuit Breaker
    Circuit Breaker
  • Transformer
    Transformer
  • Electric Motor
    Electric Motor
  • Relay
    Relay
  • Module
    Module
  • Battery
    Battery
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
Terasaki
Terasaki
  • Circuit Breaker
    Circuit Breaker
AEG
AEG
  • Circuit Breaker
    Circuit Breaker
  • Contactor
    Contactor
  • Relay
    Relay
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
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 Circuit Breaker 5SN4120-8CN
      1/1
      Siemens Circuit Breaker 5SN4120-8CN
      $ 31 .25

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

      Quantity
      MOQ : 10
      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 Circuit Breaker is high quality!
      Circuit breaker 230/400V, 10kA, 1-pole, D, 20 A
      Model
      product brand name SENTRON
      product designation Miniature circuit breaker
      design of the product Miniature circuit breaker 5SN
      General technical data
      number of poles 1
      number of poles / note 1P
      tripping characteristic class D
      circuit-breaker / Design 5SN4CN
      overvoltage category 3
      degree of pollution 2
      Voltage
      insulation voltage
      with single-phase operation / at AC / rated
      value
      250 V
      with multi-phase operation / at AC / rated value 440 V
      Supply voltage
      type of voltage AC
      operational current / at AC / rated value 20 A
      supply voltage / at AC / rated value 400 V
      operating voltage
      with multi-phase operation / at AC / maximum 440 V
      at DC / rated value / maximum 72 V
      supply voltage frequency
      rated value 50 Hz
      Protection class
      protection class IP IP20, with connected conductors
      Switching capacity
      switching capacity current
      acc. to EN 60898 / rated value 10 kA
      Dissipation
      power loss W / for rated value of the current / at AC
      / in hot operating state / per pole
      1.6 W
      Current
      Tripping residual / rated value / derated current / at
      40 Cel
      18.48 A

      Ask questions

      (0/1,200)

      Max 1200 characters

      • Q: Can I change the size or color of an item after placing an order?

        A: If you need to change the size or color of an item after placing an order, please contact our customer service team as soon as possible. We will assist you in modifying the order if it hasn't been processed for shipping.

      • Q: How can I participate in promotions or giveaways organized by sellers?

        A: We regularly hold promotional events and organize giveaways and gift activities. You can follow our official announcements, emails, or social media channels to get information on how to participate and the details of these activities.

      • Q: How can I provide feedback or share my shopping experience with you?

        A: We highly value your feedback and would like to hear about your shopping experience. You can contact our customer service or provide feedback through the "Screenshot Feedback" feature on our website. We welcome your opinions and suggestions as they help us improve our services and better serve our customers.

      View More
      Question has been sent successfully

      Reviews

      • F

        Frank Olson

        Aug 27, 2025

        Siemens Circuit Breaker 5SN4120-8CN
        It's just as described, thanks!
        Helpful
        Unhelpful
      • R

        Rick Waters

        Aug 06, 2025

        Siemens Circuit Breaker 5SN4120-8CN
        You'll be getting it today, all taken care of.
        Helpful
        Unhelpful
      • N

        Nancy Miller

        Oct 06, 2024

        Siemens Circuit Breaker 5SN4120-8CN
        Swift and dependable service.
        Helpful
        Unhelpful
      • W

        WILLIAM LAWRENCE

        Jun 27, 2024

        Siemens Circuit Breaker 5SN4120-8CN
        Perfecto a tiempo
        Helpful
        Unhelpful
      • A

        Anonymous user

        Nov 25, 2022

        Siemens Circuit Breaker 5SN4120-8CN
        All was ok! No problems whatsoever.
        Helpful
        Unhelpful

      Siemens Circuit Breaker 5SN4120-8CN

      $ 31 .25
      Click here to view shipping costs.

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

      Quantity
      MOQ : 10
      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, Chint Circuit Breaker DZ47-60 D25 3P

      Chint Circuit Breaker DZ47-60 D25 3P

      US$7.42
      New In stock for sale, Siemens Circuit Breaker 5SY7414-7CC

      Siemens Circuit Breaker 5SY7414-7CC

      US$155.54
      New In stock for sale, Siemens Circuit Breaker 3WT8120-5UG00-0AA1

      Siemens Circuit Breaker 3WT8120-5UG00-0AA1

      US$1076.92
      New In stock for sale, Siemens Circuit Breaker 3WT8060-5UG04-5AB1

      Siemens Circuit Breaker 3WT8060-5UG04-5AB1

      US$1153.85
      New In stock for sale, Siemens Circuit Breaker 3RV1011-1AA10

      Siemens Circuit Breaker 3RV1011-1AA10

      US$341.00
      New In stock for sale, Mitsubishi Circuit Breaker AE3200-SS 3P 3200A

      Mitsubishi Circuit Breaker AE3200-SS 3P 3200A

      US$5750.00
      New In stock for sale, Terasaki Circuit Breaker TL-400

      Terasaki Circuit Breaker TL-400

      US$1039.60
      New In stock for sale, ABB Circuit Breaker M1B125 TMF30/400 F F 4P

      ABB Circuit Breaker M1B125 TMF30/400 F F 4P

      US$310.00
      New In stock for sale, Mitsubishi Circuit Breaker NF63-HV 4P 60A

      Mitsubishi Circuit Breaker NF63-HV 4P 60A

      US$117.19
      New In stock for sale, CHINT Transformer NDK(BK)-250

      CHINT Transformer NDK(BK)-250

      US$62.50
      New In stock for sale, Fuji Contactor SC-E4-G

      Fuji Contactor SC-E4-G

      US$325.38
      New In stock for sale, DEHN Surge Protection Device DBM 1 440

      DEHN Surge Protection Device DBM 1 440

      US$834.62
      New In stock for sale, Aupo Fuse BF133X

      Aupo Fuse BF133X

      US$1.70
      New In stock for sale, ANLY Relay AMY-2 3m AC220V

      ANLY Relay AMY-2 3m AC220V

      US$27.69
      New In stock for sale, UniOhm Resistor 3W120K

      UniOhm Resistor 3W120K

      US$4.62

      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, SCHMERSAL Switch Z2FH 232-11-11

      SCHMERSAL Switch Z2FH 232-11-11

      US$691.15
      New In stock for sale, SUNX Sensor CX-412A-C05

      SUNX Sensor CX-412A-C05

      US$69.00
      New In stock for sale, VBI Bearing 61860-2RS

      VBI Bearing 61860-2RS

      US$65.77
      New In stock for sale, YUKEN Vane Pump SVP2-F-F-47-RBB-10

      YUKEN Vane Pump SVP2-F-F-47-RBB-10

      Contact Us
      New In stock for sale, CKD Air Cylinder SCA2-CA-100B-300

      CKD Air Cylinder SCA2-CA-100B-300

      US$350.00
      New In stock for sale, Copeland Compressor ZRT98K3-TFV-250

      Copeland Compressor ZRT98K3-TFV-250

      Contact Us
      New In stock for sale, MILTON ROY Diaphragm Pump P156

      MILTON ROY Diaphragm Pump P156

      US$765.38
      New In stock for sale, LG LS Contactor 1258003100 GMC-50 AC415V

      LG LS Contactor 1258003100 GMC-50 AC415V

      Contact Us
      New In stock for sale, CAMOZZI Air Cylinder QP1A063A015

      CAMOZZI Air Cylinder QP1A063A015

      US$196.96
      New In stock for sale, MAC Solenoid Valve 35LA-E00-DDDA-1BA

      MAC Solenoid Valve 35LA-E00-DDDA-1BA

      Contact Us

      Recent related posts

      The Differences Between Butterfly Valve and Ball Valve

      02/24/2023

      The Differences Between Butterfly Valve and Ball Valve

      The biggest difference between butterfly valve and ball valve is that the opening and closing part of butterfly valve is a plate, while the ball valve is a ball.

      How to correctly remove ammonia refrigerant during refrigeration machine maintenance

      08/16/2020

      How to correctly remove ammonia refrigerant during refrigeration machine maintenance

      In the process of maintenance of the refrigerator, if there is a fault in the system components from the compressor exhaust shut-off valve to the accumulator outlet valve, it needs to be disassembled and repaired.

      Heat Pump vs Air Conditioner: Which One is Right for You?

      07/21/2023

      Heat Pump vs Air Conditioner: Which One is Right for You?

      When it comes to cooling your home, you have two main options: a heat pump or an air conditioner. Both of these systems work to keep your home comfortable during hot weather, but there are some key differences between the two.

      17  centrifugal compressor manufacturers,in the world. how many do you know

      01/08/2025

      17 centrifugal compressor manufacturers,in the world. how many do you know

      In the past decade, under the background of economic globalization and fierce competition, the centrifugal compressor manufacturing industry has also undergone continuous mergers and acquisitions and reorganizations. In 2000, the Japanese company EBARA pu�器2�䀀��������ᅵ皥���䖒皦즠Ʋ㎄ᰙ��㲈Ʋ�䌁皦��ᮔDž༬皧㎎ᰙЀ���呄ᠾ鹨់༹皧����ࠄ��00령ꐱ댁珵뛐珵Љ�䕄ྦ�￿￿뤂ᐱ뚜珵����ᴴᏩ呄ᠾ퍘ᒥ��鹨់ᩄ�ꋔྦ�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�ǜ�V� �/�펔B䌁皦 ����ᮔDž�'鱤džၜ먢䇨珵呈ᠾ뤂ᐱ��⿇⬿먲僧ᐱ㥲ᐲ�僬㣢ᐲ���ᠾ����랖僧਎�識��僬㣢ᐲ��臆S㥲ᐲ��ᬄğ���識��理艏S杴 識杴 ����������㥲ᐲ������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������������琉蒠S識器 �直������������������������������������������������������囬ᐱ囸ᐱ嵭僦㠦ᐲᔇ僦囸ᐱ殺廼僦囬ᐱᙐ僦㠲ᐲ嵥僦直ᙧ僦㠲ᐲ令ᙐ僦㣮ᐲ嵭僦林ᙧ僦㣮ᐲ龍톺珵㥲ᐲ枬  �퀖珵林춌珵蓄Cᴨ먢塚赺C直ᵘ먢塚㥲ᐲ礼藚C識直杴 器器蘯C礼器��垘ᒣ��������識靖ﮰ﨤虣C器﯈擜 ﮰ直杴 梅擩 ﯈祖斥 ﯈ﯤ未 ﯈ꍀᒥ䈈ᅗ䠠 �������� ���뤂ᐱ�� ���᧪ᐲ�� ���뤂ᐱ�� ���㥲ᐲ�� ���뤂ᐱ�� ���᧪ᐲ��������

      Energy saving tips for air purifiers you should know

      08/10/2020

      Energy saving tips for air purifiers you should know

      As the smog hits in recent years and the air quality continues to decline, air purifiers have gradually become essential household appliances in people's homes. Experts suggest that the air purifier should be turned on for 24 hours.

      Standard summary of threads in the pneumatic industry

      09/07/2020

      Standard summary of threads in the pneumatic industry

      Threads are used to deal with machinery every day, especially hydraulic and pneumatic. For a long time, domestic and foreign, metric and imperial, straight cone, sealed and unsealed, inner and outer, 55 degrees and 60 degrees .

      Talking about the installation method of condenser

      08/15/2020

      Talking about the installation method of condenser

      For the vertical condenser, it should be placed on the basis of marking according to the drawing requirements, and the vertical line should be used to ensure the verticality of the installation.

      AC servo driver wiring precautions

      03/08/2021

      AC servo driver wiring precautions

      For signal line and encoder input line, please use shielded wire. Wiring length: the length of signal line from NC to AC servo driver is less than 3m, and the length of input line from AC driver to encoder is less than 20m. The ground wire should be thick wire as far as possible. According to the third grounding standard (grounding resistance < 100 Ω), one point grounding method should be adopted to connect the ground wire. If the motor and the machine tool are insulated, the motor should be grounded.

      How to reduce the discharge temperature of refrigeration compressor

      07/23/2020

      How to reduce the discharge temperature of refrigeration compressor

      The refrigeration compressor is the core and heart of the refrigeration system. The capacity and characteristics of the compressor lead to the capacity and characteristics of the refrigeration system. In a sense, the design and matching of the refrigeration system is to reflect the capacity of the compressor.

      Axial compressor

      06/14/2020

      Axial compressor

      Axial compressors and centrifugal compressors are both speed type compressors and are called turbo compressors. The meaning of speed type compressors is that their working principle relies on the blades to work on the gas, and the flow speed of the gas ca器2䀀ᅵ皥䖒皦즠Ʋ焬क़㲈Ʋ䌁皦ᮔDž༬皧然क़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

      • 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 :

      GE Circuit Breaker Schneider Circuit Breaker Honeywell Circuit Breaker Siemens Circuit Breaker Terasaki Circuit Breaker AEG Circuit Breaker Eaton Moeller Circuit Breaker Mitsubishi Circuit Breaker Allen Bradley Circuit Breaker Fuji Circuit Breaker 140M-K5F-D12 EW50RAGU-3P010 MC0C310AT CB E1 24DC/6A NO P-2800905 SFKOG 1.6-2.5A 25CJT0752 MHMF022L1V2M VE4025B1045 8E5K-22-X VA08H-760 5ps132eaa22 Bristol H21J30BABCA Copeland CRN5-0500-TFD-522 dr 75 24 JSDEP-50A3 LG MA53LCCM LG QJ306PEC mt100hs3dve danfoss Nidec U12E12MS4A3-57 NMB-MAT 3115RL-05W-B69 PA215M2C-4FT Parker PVLB121606 PFC0812DE Rexroth 4WRPEH 6 C3 B12L-3X/M/24A1 RS222VREC rsp 320 5 SC120AGH00 sgdv 1r9d11a TNB220FFEMC U92C12MS1B3 52

      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