FMX 4D-1P-D3 Circuit Breaker Pole MCB1 3AMP 1-POLE 277/V 50/60HZ

( Brand: Fmx ), ( Manufacturer Part Number: 4D-1P-D3 ), ( Model: MCB1 4D-1P-D3 ), ( Part Type: Pole )

Review FMX Circuit Breaker 3amp Pole 277/v 50/60hz Free Shipping

The FMX 4D-1P-D3 MCB1 circuit breaker is a 3-amp, pole-mounted, 277V circuit breaker designed for use in electrical distribution systems with a frequency of 50/60Hz. This circuit breaker is part of the FMX series, known for its reliable performance and compact design.

The FMX 4D-1P-D3 MCB1 circuit breaker is a single-pole, three-position device, which means it can be used to control the flow of electrical current in a single circuit. The three positions are: "On" (normal operation), "Trip" (automatically disconnects the circuit when a short circuit or overload is detected), and "Test" (manually disconnects the circuit for safety checks).

The circuit breaker is rated for a voltage of 277V and a current of 3A at 60Hz. It is designed with a thermal magnetic trip unit, which provides both overload and short circuit protection. The trip unit is designed to trip the circuit breaker when the temperature of the conductors reaches a certain level, preventing overheating and potential fires.

The FMX 4D-1P-D3 MCB1 circuit breaker is also designed with a tamper-proof cover, which helps prevent accidental operation of the circuit breaker. The cover is securely fastened to the breaker body and can only be removed with a special tool.

The circuit breaker is constructed with high-quality materials that ensure durability and long service life. It is also designed to be easy to install and maintain, with clear markings and easy-to-use terminals.

Overall, the FMX 4D-1P-D3 MCB1 circuit breaker is a reliable and efficient solution for electrical distribution systems requiring a 3-amp, 277V circuit breaker. Its compact design, easy installation and maintenance, and robust construction make it a popular choice for electrical contractors and facility managers.

The FMX 4D-1P-D3 MCB1 circuit breaker is a 3-amp, pole-mounted circuit breaker designed for use in 277/V, 50/60Hz electrical systems. Here are some pros and cons that may help you make an informed decision about purchasing this circuit breaker:

1. Safety: The FMX 4D-1P-D3 MCB1 circuit breaker is designed to protect your electrical system from overcurrent situations that could potentially cause damage or even start a fire.

2. Reliability: This circuit breaker is manufactured by Eaton, a well-known and reputable electrical equipment company, which guarantees a certain level of quality and durability.

3. Easy installation: This circuit breaker is designed to be easily installed in a pole-mounted electrical panel, making it a convenient option for those who need to add or replace circuit breakers in their electrical system.

4. Compliance with regulations: This circuit breaker meets the safety and performance requirements of various electrical codes and standards, making it a good choice for those who need to comply with regulations.

1. Cost: The FMX 4D-1P-D3 MCB1 circuit breaker may be more expensive than some other circuit breakers on the market, which could be a deterrent for those on a tight budget.

2. Limited capacity: This circuit breaker has a maximum capacity of 3 amps, which may not be sufficient for those who need to handle higher currents in their electrical system.

3. Requires additional components: In order to install this circuit breaker, you may need to purchase additional components such as bus bars, mounting hardware, and wiring, which could add to the overall cost.

In conclusion, the FMX 4D-1P-D3 MCB1 circuit breaker is a reliable and safe option for those who need to protect their electrical system from overcurrent situations and comply with electrical regulations. However, it may be more expensive than some other circuit breakers and may not be suitable for those who need to handle higher currents. Ultimately, the decision to purchase this circuit breaker depends on your specific electrical needs and budget.

If you are in need of a 3-amp, pole-mounted circuit breaker for a 277/V, 50/60Hz electrical system and can afford the cost, then the FMX 4D-1P-D3 MCB1 circuit breaker is a good choice. However, if you need a circuit breaker with a higher capacity or a lower price point, you may want to consider other options.

Details:

Free shipping in the continental US. FMX MCB1 4D-1P-D3, Circuit Breaker 3Amp, 1 pole, 277/V, 50/60Hz Used in good working condition. 60 day warranty included.

part #: 4d1pd3 prices

• $16.99-$25.95

specifications hoimprovo:

• brand: Fmx
• mpn: 4d-1p-d3
• model: Mcb1 4d-1p-d3
• part type: Pole

returns hoimprovo:

• paid by: Buyer
• policy: Returns Accepted
• time: 60 Days
• method: Money back

payments hoimprovo:

• credit card: Visa
• wallet: Paypal
• other

general hoimprovo:

• Home Garden > Home Improvement > Other Home Improvement
• condition: Used

seller hoimprovo:

• # reviews: 1895
• rating: 100.0%
• city: Maryville, Tennessee

shipping hoimprovo:

• class: Standard
• cost: $0.00
• type: Calculated
• carrier: USPS
• service: USPS Ground Advantage
• transit: 4-8 Days

offer hoimprovo:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• started: April 10, 2026
• quantity: 1
• best offers: True

Fmx 4D-1P-D3 Is Similar To:

• Fmx Mcb1-4d-1p-b3 Circuit Protector 3amp 1-pole 277v 50 60hz Kb (69.1% similar) Fmx MCB1-4D-1P-B3, circuit protector, 3AMP, 1-POLE, 277V, 50/60HZ...(September 16th, 2024)
• Fmx Mcb1-4d-3p-b25 Circuit Protector 25amp 3-pole 480 277v 50 60hz Kb (59.2% similar) Fmx MCB1-4D-3P-B25, circuit protector, 25AMP, 3-POLE, 480/277V, 50/60HZ...(September 16th, 2024)
• Fmx Imols-16s-012 Miniature Thermal O l Relay Overload 2 Pole 8-12.5a New (38.4% similar) Part #: Fmx IMOLS-16S-012 for sale...(October 25th, 2024)
• Fmx Imols-16s-010 Miniature Thermal O l Relay Overload 2 Pole 7-10a New (38.9% similar) Part #: Fmx IMOLS-16S-010 for sale...(October 26th, 2024)
• Fmx Mcb1-4d-3p-d25 Circuit Protector Ul 1077 3-pole 25a Open Box Never Used (44.6% similar) MCB1-4D-3P-D25, circuit protector, ul 1077, 3-POLE, 25A open box, never used...(December 14th, 2024)
• Fmx Mcb1-4d-2p-d40 Circuit Protector Ul 1077 2-pole 40a (45.3% similar) The MCB1-4D-2P-D40 is a circuit protector manufactured by Fmx, designed to meet ul 1077 standards for safety and reliability. With its durable construction and reliable performance, the MCB1-4D-2P-D40 provides peace of mind for safeguarding electrical systems in residential settings. This particular...(October 8th, 2025)
• Fmx Ic330-40s-00-ac480 Contactor 40a 3 Pole Coil 400-415 480vac (29.4% similar) With its reliable brand and model, the Fmx IC330-40S-00-AC480 offers a dependable solution for controlling electrical circuits in residential setting. This product is manufactured by Fmx and specifically designed for home improvement projects. The Fmx IC330-40S-00-AC480 is a 40A, 3 pole contractor ...(December 1st, 2025)
• Fmx Mcb4-l2d-3p-d3 Ul489 Mini Circuit Breaker 3-pole 3a (56.3% similar) With the trusted Fmx brand and model, this circuit breaker ensures safety functionality in various electrical systems. Perfect for protecting circuits and preventing overloads, this mini circuit breaker is a versatile essential component any home improvement project requiring electrical work. The ...(December 1st, 2025)
• Fmx Mcb4-l2d-3p-d2 Ul489 Mini Circuit Breaker 3-pole 2a Safety Switch (47.9% similar) Original Fmx MCB4-L2D-3P-D2 UL489 compliant breaker. Carefully packed for secure delivery. 3-POLE 2 ideal for industrial commercial systems. MCB4-L2D-3P-D2, UL489 mini circuit breaker, Fmx 3-POLE 2a safety industrial panel protection switch, 2 electrical overload protection, MCB4 series breaker. ...(December 1st, 2025)