FURNAS ELECTRIC CO 3UA5012-0J Siemens

( Brand: Furnas Electric Co ), ( Manufacturer Part Number: 3UA5012-0J )

Review FURNAS ELECTRIC CO Siemens 3ua50120j Used

The **Furnas Electric 3UA5012-0J (Siemens 3UA50120J)** is a high-performance, industrial-grade motor starter designed for demanding applications in manufacturing, automation, and process control environments. Part of Siemens robust line of power distribution and control solutions, this magnetic motor starter combines reliability, efficiency, and advanced safety features to ensure seamless operation in both new installations and retrofitted systems. Engineered with a compact yet durable construction, the 3UA5012-0J features a robust aluminum housing that resists corrosion and mechanical stress, making it ideal for harsh industrial settings where dust, moisture, and temperature fluctuations are common. Its modular design allows for easy integration with Siemens Tmax and Tmax XT circuit breakers, enabling flexible configuration for varying load requirements while maintaining a clean, organized control panel layout.

At its core, this motor starter operates using a proven magnetic contactor mechanism, providing rapid and precise control over three-phase induction motors ranging from fractional to medium horsepower ratings. The integrated overload protection relay ensures the motor is safeguarded against thermal overloads, short circuits, and phase imbalances, automatically disconnecting the load when necessary to prevent damage and extend equipment lifespan. The starter s compact footprint measuring approximately 120mm in width optimizes space utilization in control cabinets without compromising performance, while its standardized mounting system simplifies installation and maintenance. For enhanced functionality, the 3UA5012-0J supports auxiliary contacts, auxiliary relays, and optional remote control modules, allowing for advanced sequencing, monitoring, and integration with PLCs or SCADA systems for automated process control.

Safety and compliance are prioritized in its design, with features such as arc-resistant contacts and a sealed terminal block to minimize the risk of electrical faults. The starter meets stringent international standards, including IEC/EN 60947-4-1 for low-voltage switchgear and controlgear, ensuring compatibility with global industrial regulations. Its compatibility with Siemens Tmax circuit breakers further enhances system reliability, as the integrated protection devices coordinate seamlessly to handle fault conditions without cascading failures. Whether deployed in conveyor systems, pump applications, or HVAC setups, the 3UA5012-0J delivers consistent performance under heavy loads, reducing downtime and operational costs. With its blend of Siemens engineering precision and Furnas Electric s industrial expertise, this motor starter stands as a dependable solution for engineers and technicians seeking a balance of performance, durability, and ease of integration in modern automation systems.

### Pros and Cons of buying a Furnas Electric 3UA5012-0J (Siemens 3UA50120J)

The Furnas Electric brand, now part of Siemens, is well-regarded in the electrical industry for producing durable and high-quality electrical panels. Siemens is a globally recognized manufacturer with a strong track record in industrial and commercial electrical solutions, ensuring that this panel is built to last with robust construction.

The 3UA5012-0J is part of Siemens modular series, meaning it integrates seamlessly with other Siemens components, such as circuit breakers, relays, and contactors. This makes it easier to expand or modify the panel in the future without compatibility issues. It adheres to industry standards, ensuring safety and functionality in most electrical applications.

The panel s modular nature allows for customization based on specific needs. You can add or remove components as required, making it versatile for various applications, from residential subpanels to small commercial setups. This flexibility reduces the need for a complete overhaul if your electrical requirements change.

Siemens panels are designed with safety in mind. The 3UA5012-0J likely includes features such as arc fault protection, proper grounding, and clear labeling for safe operation. The use of quality materials and proper insulation reduces the risk of electrical hazards like short circuits or fires.

Siemens panels are optimized for efficient power distribution, reducing energy loss during transmission. This can lead to cost savings over time, especially in larger systems where energy efficiency is critical.

Siemens offers warranties and technical support for its products, which can be valuable if issues arise. Furnas, as a Siemens brand, may also provide additional regional support, ensuring that parts and service are readily available.

The panel is designed to be compact yet functional, with clear labeling and organized wiring paths. This makes it easier to install, maintain, and troubleshoot, which is particularly useful for DIY enthusiasts or small-scale professionals.

Siemens continues to innovate in electrical technology, and this panel is likely to remain compatible with newer Siemens technologies for years to come. This ensures that upgrades or integrations with smart grid technologies or automation systems can be easier in the long term.

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Siemens and Furnas Electric panels are generally more expensive than generic or lesser-known brands. The 3UA5012-0J may have a higher upfront cost, which could be a barrier for budget-conscious buyers, especially if purchasing new rather than used or refurbished.

While the modular design is an advantage, it can also be overwhelming for someone without electrical experience. Installing or modifying the panel requires a good understanding of electrical wiring, safety protocols, and possibly local codes. Improper installation can lead to safety hazards or voided warranties.

Although the panel is modular, the specific components you can add may be limited by the design of the 3UA5012-0J. If you require highly specialized or non-standard components, you might need to invest in additional adapters or custom solutions, adding to the complexity and cost.

If you re not already using Siemens components, integrating this panel might require purchasing additional Siemens parts to maintain compatibility. This can increase costs if you re mixing brands, as some components may not be interchangeable.

For very small or simple electrical setups (e.g., a basic residential subpanel for a single home), the 3UA5012-0J might offer more capacity than needed. This could result in unnecessary expenses if you don t utilize all the available slots or features.

While the panel itself is durable, professional installation is often recommended to ensure safety and compliance with electrical codes. Labor costs can add significantly to the total expense, especially if you need an electrician to handle the installation or inspection.

While Siemens has a strong global presence, parts for older or less common models might be harder to find in some regions. This could lead to delays in repairs or replacements if the panel is no longer in production or if specific components become obsolete.

Siemens panels, like any high-quality electrical equipment, may require regular maintenance to ensure optimal performance. Without experience, diagnosing issues or performing maintenance could be challenging, potentially leading to downtime or costly repairs.

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The Furnas Electric 3UA5012-0J (Siemens 3UA50120J) is a high-quality, reliable, and versatile electrical panel that excels in durability, safety, and compatibility with Siemens ecosystem. It is ideal for applications where reliability, modularity, and long-term performance are priorities, such as commercial installations, industrial setups, or larger residential projects where future expansion is anticipated.

However, the higher cost, complexity for beginners, and potential overkill for simple applications may not make it the best choice for everyone. If you re working on a project where you need a robust, standardized panel and can justify the investment, this is an excellent option. For smaller or simpler projects, a more budget-friendly or simpler panel might suffice.

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- You require a durable, modular, and future-proof electrical panel for a commercial, industrial, or large-scale residential project.

- You are already using or plan to use other Siemens components, ensuring seamless integration.

- You have access to professional installation or are experienced in electrical work to handle the setup and maintenance.

- You prioritize long-term reliability and safety over upfront cost savings.

- Your project is small-scale or simple, and you re working within a tight budget. In this case, a more affordable generic panel or a simpler Siemens model might be sufficient.

- You lack experience in electrical work and are uncomfortable with the complexity of installation or troubleshooting.

- You cannot justify the higher cost, and there are no plans to expand or upgrade the panel in the near future.

- You are in a region where Siemens parts are difficult to source, and you want to minimize potential future issues.

- **Used/Refurbished Siemens Panels:** If budget is a concern, a well-maintained used panel could offer similar reliability at a lower cost.

- **Other Siemens Models:** Depending on your needs, a smaller or less feature-rich Siemens panel (e.g., 3UA5011 or similar) might be more cost-effective.

- **Generic Brands:** For very basic applications, a reputable generic panel from brands like Square D (now part of Schneider Electric) or Cutler-Hammer may be a viable and cheaper alternative, though with slightly less long-term support.

Ultimately, the 3UA5012-0J is a strong choice for those who value quality and compatibility, but it s important to weigh the pros and cons against your specific project requirements.

Details:

All products are guaranteed to be working but may show signs of use if purchasing a used product. Packaging and Handling: Items are safely ESD packaged in custom shipping cartons for protection. Call to use a shipping service other than the ones listed. Sells new and surplus product develops channels to purchase such.

part #: 3ua50120j prices

• $19.99-$449.00

specifications automationjack:

• brand: Furnas Electric Co
• mpn: 3ua5012-0j

seller automationjack:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 195729
• rating: 99.6%

offer automationjack:

• quantity: 1
• availability: In Stock
• sold: 0
• started: March 22, 2026
• options: Ship-to-home

returns automationjack:

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

shipping automationjack:

• service: Standard
• cost: $12.90
• transit: 28-33 Days
• class: Standard
• type: Fixed

payments automationjack:

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

general automationjack:

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

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