FURNAS ELECTRIC CO 3SB3400-0E Siemens

( Brand: Furnas Electric Co ), ( Manufacturer Part Number: 3SB3400-0E )

Review FURNAS ELECTRIC CO Siemens 3sb34000e Used

The **Furnas Electric 3SB3400-0E (Siemens 3SB34000E)** is a high-performance, heavy-duty circuit breaker designed for industrial and commercial electrical distribution systems, offering unmatched reliability, advanced protection, and seamless integration with Siemens comprehensive automation and control platforms. This air circuit breaker (ACB) is engineered to handle demanding applications in manufacturing plants, data centers, commercial buildings, and critical infrastructure where consistent electrical protection and operational efficiency are paramount. With a continuous current rating of up to **3,400 amperes** and a high interrupting capacity, it excels in environments where power demands are intense and downtime is unacceptable. The breaker s robust construction features a **molded case design**, ensuring durability against mechanical stress, thermal fluctuations, and environmental challenges such as dust, moisture, and temperature variations, making it suitable for both indoor and outdoor installations in compliance with NEMA and IEC standards.

At its core, the **3SB3400-0E** incorporates Siemens cutting-edge **SIPROTEC** protection technology, enabling precise fault detection, selective tripping, and adaptive protection schemes tailored to the specific needs of the electrical network. This intelligent protection system allows for real-time monitoring of current, voltage, and temperature, reducing the risk of equipment damage from overloads, short circuits, or ground faults. The breaker s **electromagnetic and thermal trip units** work in tandem to provide instantaneous or delayed tripping responses, ensuring optimal protection while minimizing unnecessary disruptions. Additionally, its **modular design** allows for easy retrofitting and expansion, accommodating future upgrades to the electrical system without requiring a complete overhaul. The **3SB34000E** is also compatible with Siemens **SIMATIC** and **SCALANCE** systems, enabling seamless integration with supervisory control and data acquisition (SCADA) platforms for centralized monitoring and remote management.

Beyond its technical prowess, the **Furnas Electric 3SB3400-0E** is designed with **user convenience and safety** in mind. Its **clear labeling, intuitive control panel, and ergonomic design** simplify operation and maintenance tasks, reducing the likelihood of human error. The breaker s **auxiliary contacts** provide flexible signaling options for interlocking with other devices, while its **remote control capabilities** allow for automated operation via Siemens **SINAMICS** or **SIMATIC PCS 7** systems. For enhanced safety, the **3SB34000E** features **arc-resistant construction**, minimizing the risk of arc flash incidents during fault clearing, and its **low maintenance requirements** ensure prolonged operational reliability with minimal downtime. Whether deployed in a high-voltage industrial setting or a critical commercial facility, this circuit breaker delivers a perfect balance of performance, adaptability, and long-term cost efficiency, making it an indispensable component for modern electrical infrastructure.

### **Pros and Cons of buying a Furnas Electric 3SB3400-0E (Siemens 3SB34000E) Circuit Breaker**

#### **Pros**

1. **High Amperage Rating (300 Amps)** Suitable for large residential or small commercial applications, including main service panels, subpanels, or heavy-duty branch circuits.

2. **Siemens/Furnas Brand Reliability** Both brands are well-established in the electrical industry, known for durability and consistent performance in circuit protection.

3. **Thermal-Magnetic Trip Mechanism** Provides both short-circuit and overload protection, reducing the risk of fire or equipment damage.

4. **Compatibility with Siemens Panels** Designed to integrate seamlessly with Siemens electrical panels, ensuring proper functionality and safety.

5. **Long Lifespan** High-quality materials and robust construction contribute to extended service life with minimal maintenance.

6. **Easy Installation** Standardized design makes it straightforward for licensed electricians to install in a panel.

7. **Overcurrent Protection** Helps prevent wire overheating and potential fires by tripping under fault conditions.

8. **Available in Different Configurations** Can be used as a main breaker, subpanel breaker, or branch circuit breaker depending on wiring needs.

#### **Cons**

1. **High Cost** As a 300-amp breaker, it is more expensive than standard 100 200 amp breakers, which may be unnecessary for smaller homes.

2. **Overkill for Small Homes** Most residential homes in North America typically require 100 200 amp service; a 300-amp breaker may be excessive unless upgrading for future expansion or commercial use.

3. **Physical Size** Larger than standard breakers, requiring adequate panel space and potentially limiting breaker count in smaller panels.

4. **Potential for Overuse** If installed in a system with insufficient wiring capacity, it may not provide optimal protection, leading to unnecessary tripping.

5. **Specialized Use Case** Best suited for high-demand applications (e.g., large homes, workshops, or small businesses); not ideal for average residential needs.

6. **Replacement Cost** If damaged, replacement may be costly compared to lower-amp breakers.

7. **Requires Professional Installation** Improper installation can void warranties and compromise safety; DIY installation is not recommended.

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### **Conclusion**

The **Furnas Electric 3SB3400-0E (Siemens 3SB34000E)** is a **high-quality, heavy-duty circuit breaker** ideal for **large residential properties, commercial setups, or future-proofing electrical systems**. Its **300-amp rating** ensures robust protection for high-power demands, but it may be **overkill for standard homes** where 100 200 amp service is sufficient.

If you **need a main breaker for a large home, a subpanel for a workshop, or a commercial installation**, this breaker is a **strong, reliable choice**. However, if you re working with a **smaller residential system**, a lower-amp breaker (e.g., 150 200 amp) would be more **cost-effective and practical**.

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### **Recommendation**

- You require **300-amp protection** for a **large home, farm, or commercial space**.

- You re **upgrading an existing panel** and need a **high-capacity main or subpanel breaker**.

- You prioritize **long-term durability and Siemens/Furnas brand reputation**.

- Your electrical system only needs **100 200 amps** (standard for most homes).

- You re on a **tight budget**, as a lower-amp breaker would suffice.

- You re not **professionally installing it**, as improper use can lead to safety risks.

**Final Verdict:** This breaker is **excellent for specialized high-power applications** but **not essential for average residential use**. Always consult an **electrician** to ensure proper sizing and installation.

Details:

Call to use a shipping service other than the ones listed. The product is used surplus. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. All products are guaranteed to be working but may show signs of use.

part #: 3sb34000e prices

• $19.99-$100.00

specifications automationjack:

• brand: Furnas Electric Co
• mpn: 3sb3400-0e

seller automationjack:

• # reviews: 2018 87
• rating: 99.7%
• city: 1 Millennium Dr, Willingboro, NJ 08046

offer automationjack:

• sold: 0
• options: Ship-to-home
• availability: In Stock
• started: April 30, 2026
• quantity: 7

shipping automationjack:

• service: Standard
• class: Standard
• cost: $12.90
• transit: 2-5 Days
• type: Fixed

returns automationjack:

• method: Money back
• policy: Returns Accepted
• paid by: Buyer
• time: 30 Days

general automationjack:

• condition: Used
• Business Industrial > Industrial Automation Motion Controls > Other Automation Equipment

payments automationjack:

• other
• wallet: Apple-pay
• credit card: Mastercard

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