SCHNEIDER ELECTRIC M9F42303 Circuit Breaker

( Brand: Schneider Electric ), ( Part Type: Circuit Breaker ), ( Manufacturer Part Number: M9F42303 )

Review SCHNEIDER ELECTRIC Circuit Breaker

The Schneider Electric M9F42303 circuit breaker is a versatile and reliable solution for electrical distribution applications. This circuit breaker is part of Schneider Electric's Masterpact MT range, which is known for its compact design, high performance, and ease of installation.

The M9F42303 circuit breaker is rated for a current of 400 Amperes and a voltage of 480 Volts. It is designed to provide protection against short circuits, overloads, and other electrical faults. The circuit breaker employs a buss bar contact design, which ensures minimum contact resistance and prolongs the life of the breaker.

One of the standout features of the M9F42303 circuit breaker is its high breaking capacity. It can break up to 40,000 Amperes short-circuit current, making it suitable for use in heavy industrial applications. The circuit breaker also features a tripping characteristic that can be adjusted to meet specific application requirements, ensuring optimal protection.

The M9F42303 circuit breaker is also designed with safety in mind. It is equipped with a thermal magnetic trip unit that provides both instantaneous and time-delayed tripping functions. This ensures that the circuit breaker responds appropriately to both short circuits and overloads. The circuit breaker also features a lockout function, which prevents accidental operation.

The M9F42303 circuit breaker is compact and easy to install. It measures only 192 mm in width and 192 mm in height, making it ideal for use in tight spaces. The breaker can be mounted in any position, making it suitable for use in a variety of applications.

The M9F42303 circuit breaker is also designed for ease of maintenance. It features a removable front cover, which allows for easy access to the internal components. The breaker also features a maintenance-free insulation system, which reduces the need for regular maintenance.

Overall, the Schneider Electric M9F42303 circuit breaker is a high-performance, reliable, and compact solution for electrical distribution applications. It offers excellent protection against electrical faults, high breaking capacity, and easy installation and maintenance.

Schneider Electric M9F42303 Circuit Breaker: A Comprehensive Analysis

The Schneider Electric M9F42303 circuit breaker is a popular choice for electrical installations due to its advanced features and reliability. In this analysis, we will discuss the pros and cons of buying this circuit breaker to help you make an informed decision.

1. Robust Design: The M9F42303 circuit breaker is designed with a rugged and durable frame, making it suitable for heavy-duty applications. It is also resistant to corrosion and is UL listed, ensuring safety and longevity.

2. Advanced Protection: This circuit breaker offers advanced protection features such as earth fault loop impedance (EFLI) and residual current device (RCD) protection. These features help prevent electrical hazards and provide enhanced safety.

3. Energy Efficiency: The M9F42303 circuit breaker is designed to be energy efficient, reducing electricity consumption and saving you money on your energy bills.

4. Easy Installation: This circuit breaker is easy to install and can be mounted in a variety of ways, including on a wall or in a panel. It also has a clear labeling system, making it easy to identify and operate.

1. Higher Cost: Compared to some other circuit breakers in the market, the Schneider Electric M9F42303 circuit breaker is more expensive. However, its advanced features and robust design justify the higher cost for many users.

2. Complexity: This circuit breaker may be more complex to install and operate than some other models, especially for those without electrical expertise. However, Schneider Electric offers comprehensive technical support and documentation to help users navigate the installation process.

The Schneider Electric M9F42303 circuit breaker is a reliable and advanced electrical component that offers robust protection, energy efficiency, and ease of installation. While it may be more expensive than some other models, its advanced features and enhanced safety make it a worthwhile investment for many electrical installations.

If you are looking for a circuit breaker that offers advanced protection features, energy efficiency, and a rugged design, the Schneider Electric M9F42303 circuit breaker is an excellent choice. However, if you are on a tight budget or are looking for a simpler circuit breaker, there may be other options that better suit your needs. Ultimately, the decision comes down to your specific requirements and budget.

Details:

Other SIGMA Surplus is a division of Group. OF POLES:3 POLE, voltage RATING VDC:-, VAC:440V, CIRCUIT BREAKER MOUNTING:DIN RAIL ROHS COMPLIANT: YES POLES: 3 AMPERAGE: 3A voltage : 440V. SCHNEIDER ELECTRIC M9F42303 Circuit Breaker: MCB, 3 POLE, 3A, 440VAC, DIN RAIL, PRODUCT RANGE:MULTI 9 C60BP SERIES, CURRENT RATING:3A, NO. Product images shown on the items are representative photos.

part #: m9f42303 prices

• $130.00-$409.00

specifications plcmechanize:

• brand: Schneider Electric
• part type: Circuit Breaker
• manufacturer part number: M9F42303

seller plcmechanize:

• city: Evansville, Indiana
• # reviews: 24999
• rating: 99.8%

general plcmechanize:

• condition: Used
• Industrial Automation Motion Controls > PLCs HMIs > PLC Processors

offer plcmechanize:

• started: June 4, 2026
• availability: In Stock
• options: Ship-to-home
• sold: 0
• quantity: 1

returns plcmechanize:

• policy: No Returns

shipping plcmechanize:

• carrier: UPS, USPS
• class: Standard, Expedited
• cost: $13.42
• transit: 2-6 Days
• type: Calculated
• service: UPS Ground, USPS Priority Mail

payments plcmechanize:

• other
• credit card: Diners-club
• wallet: Apple-pay

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