K-Four Switches
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K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals
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K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals
Quality Switches For Automotive / Industrial / Marine And Many Other applications
K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals
Item #: 42309310

K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals

Item #: 42309310

NZD 54

Price Details

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*All items will import from US

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Only 14 items left in stock.
Order now and get it around Monday, September 07
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Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.

What Stands Out

High Amp Rating
This 40 Amp pushbutton reset circuit breaker handles significant electrical loads, providing robust protection and ensuring reliability for high-demand applications.
User-Friendly Reset
The pushbutton design allows for easy resetting after a trip, minimizing downtime and user intervention, making it ideal for both professional and DIY use.
Screw Terminal Design
Featuring #10 screw terminals, installation is secure and straightforward, enhancing connectivity and reducing the risk of loose connections for a safer operation.

Product Details

Shop K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals online at a best price in Cook Islands. B00JWZADYM
Brand NameK-Four Switches
ModelK-Four19-166-40
Part NumberK-Four19-166-40
ManufacturerK-Four Switches
Unit Count1 Count
Item Weight1.3 pounds (590 grams)
Current Rating40 A
Circuit Breaker TypeStandard
Mounting TypePanel Mount
Number of Poles1
Voltage32 volts
BrandK-Four Switches
Number Of Poles1

Who Should Buy?

Suitable For
  • Home Electrical Systems

    Ideal for homeowners seeking a reliable circuit breaker for various home appliances and electrical systems.

  • DIY Enthusiasts

    Great for DIY projects where circuit protection is needed for custom electrical installations and modifications.

  • Motor Applications

    Suitable for motor-driven devices that require protection from overload and short circuit conditions.

Not Suitable For
  • High Voltage Environments

    Not suitable for applications exceeding 40 amps or high voltage situations where higher capacity breakers are needed.

Product Description

Have any Query? Chat with us

Customer Questions & Answers

  • Question: What is a K4 40 Amp Pushbutton Reset Circuit Breaker?

    Answer: The K4 40 Amp Pushbutton Reset Circuit Breaker is a protective device designed to interrupt power in an electrical circuit when a fault occurs. It allows users to reset the circuit after a trip by simply pressing the pushbutton, making it user-friendly and efficient for circuit management. These breakers are ideal for applications that require reliable overcurrent protection in various settings, including residential, commercial, and industrial installations.
  • Question: What are the specifications of the K4 40 Amp Pushbutton Reset Circuit Breaker?

    Answer: The K4 40 Amp Pushbutton Reset Circuit Breaker typically features a 40-amp current rating and accommodates #10 screw terminals for easy wiring. It is designed to work in a wide range of environments and can handle significant electrical loads while providing instant reset capability. This versatility makes it suitable for various applications including motors, heating systems, and lighting circuits, ensuring that your electrical systems remain safe and operational.
  • Question: How do I reset the K4 Pushbutton Reset Circuit Breaker?

    Answer: Resetting the K4 Pushbutton Reset Circuit Breaker is simple and involves locating the pushbutton, which is typically on the front of the device. After a trip has occurred, pressing this button restores power to the circuit. This feature makes it incredibly convenient in situations where immediate restoration is essential, such as during power outages or fault conditions in industrial machinery.
  • Question: Why should I choose a pushbutton reset circuit breaker over a standard fuse?

    Answer: Choosing a pushbutton reset circuit breaker, like the K4 40 Amp, over a standard fuse offers several advantages. Unlike fuses, which must be replaced after a trip, circuit breakers can be reset with a push of a button, saving time and reducing hassle. This eliminates the need to keep spare fuses on hand and can provide more reliable protection for sensitive electronic equipment, ensuring continuity of operation in critical systems.
  • Question: Can the K4 40 Amp Circuit Breaker be used in outdoor applications?

    Answer: The K4 40 Amp Circuit Breaker can be used in outdoor applications depending on its housing and protection rating. Ensure the breaker is rated for exposure to moisture and outdoor conditions. This versatility allows it to be employed in outdoor lighting, garden tools, and other electrically powered devices exposed to the elements, providing reliable protection and resetting capabilities in variable environments.
  • Question: What type of wiring is compatible with the K4 40 Amp Circuit Breaker?

    Answer: The K4 40 Amp Circuit Breaker is compatible with #10 gauge wire, which is commonly used for electrical circuits requiring a higher amperage. This ensures reliable connection and adequate current handling for various devices and systems. Proper wiring is crucial for maintaining system integrity, especially in applications where safety and performance are paramount, such as in commercial electrical installations and heavy machinery.
  • Question: Is the K4 Circuit Breaker suitable for commercial use?

    Answer: Yes, the K4 40 Amp Pushbutton Reset Circuit Breaker is well-suited for commercial use, particularly for applications involving machinery and heavy electrical loads. Its robust design and easy reset feature make it ideal for environments where equipment uptime is critical. It can be installed in distribution panels or as part of larger systems to enhance overall safety and reliability in commercial electrical setups.
  • Question: What does the term 'pushbutton reset' mean?

    Answer: The term 'pushbutton reset' refers to a feature in circuit breakers that allows users to restore power after a trip by simply pressing a button. This convenience reduces downtime and is particularly valuable in scenarios where quick restoration of power is necessary, such as in industrial settings where equipment failures can cause significant delays and losses.
  • Question: How can I determine if my application needs a 40 Amp Circuit Breaker?

    Answer: To determine if a 40 Amp Circuit Breaker is suitable for your application, consider the total load that will be connected to the circuit. Sum up the amperage requirements of all devices and ensure they do not exceed 40 amps. Applications like heavy machinery or HVAC systems often require higher amperage breakers to operate efficiently, making the K4 40 Amp a suitable choice for such circumstances.
  • Question: Where can I buy K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals in Cook Islands?

    Answer: You can purchase the K4 40 Amp Pushbutton Reset Circuit Breaker #10 Screw Terminals through Ubuy, which provides a convenient online shopping experience. Ubuy is a reliable platform offering a wide selection of electronic components and circuit protection devices, ensuring you can find the right product for your needs with ease.

K-Four Switches Circuit Breaker Editorial Review

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Customer Reviews & Ratings

5 customers ratings
  • 5 Star
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  • 4 Star
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Pros

  • Reliable circuit protection
  • Easy to install
  • Durable construction
  • Clear reset button
  • Compact size

Cons

  • Some users reported minor difficulty with screws.

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“Excellent quality and original too,when ubuy send original things I will appreciate that ,I very satisfied thank you”

23 July 2026 · via Trustpilot
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  • Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
  • Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.

NZD 54

Order now and get it around Monday, September 07

QTY:

Only 14 items left in stock.
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PCI DSS compliant and ISO 27001:2022 certified, with encrypted payments and full buyer protection on every order.

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Features & Benefits

  • Versatile usage in automotive, industrial, marine, and more
  • High-quality construction ensures reliability
  • Easy push-button reset feature
  • Compatible with a range of applications
  • Meets Ul 1077 Standard for safety
  • Convenient single pole thermal type design

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