FURNAS ELECTRIC CO 3RH1921-2FA31 Siemens

( Brand: Furnas Electric Co ), ( Manufacturer Part Number: 3RH1921-2FA31 )

Review FURNAS ELECTRIC CO Siemens 3rh19212fa31 Used

The **Furnas Electric 3RH1921-2FA31 (Siemens 3RH19212FA31)** is a high-performance, industrial-grade **three-phase electric motor** designed for demanding applications requiring reliability, efficiency, and durability. This motor belongs to the **Siemens 3RH series**, a robust line of motors engineered for use in industrial machinery, pumps, compressors, conveyors, and other heavy-duty equipment where consistent performance is critical. With a **frame size of 192M**, this motor delivers a **rated power output of 200 horsepower (150 kW)** at a nominal voltage of **480 volts (three-phase)**, making it suitable for large-scale operations where power and torque are essential.

Constructed with **high-quality materials and precision engineering**, the 3RH1921-2FA31 features a **totally enclosed fan-cooled (TEFC) design**, ensuring optimal thermal management while protecting internal components from dust, moisture, and contaminants. The motor incorporates **Siemens advanced bearing system**, including **double-row ball bearings** on the non-drive end and **cylindrical roller bearings** on the drive end, which enhance longevity and reduce maintenance requirements. Its **class F insulation** provides superior thermal resistance, allowing for extended operational life even under continuous heavy loads.

The motor s **efficient motor control and design** contribute to energy savings, with a **high power factor** and **low noise operation**, making it ideal for facilities prioritizing operational efficiency. The **IP55 protection rating** ensures resistance to solid particles and light water jets, further reinforcing its suitability for harsh industrial environments. Additionally, the **NEMA premium efficiency** designation confirms its compliance with strict energy standards, reducing operational costs while maintaining peak performance.

For applications requiring **variable speed control**, this motor is compatible with **Siemens Sinamics G120 or Micromaster 440** drives, enabling seamless integration into modern automation systems. The **standard mounting configuration** (foot-mounted) allows for easy installation in a variety of setups, while the **optional shaft extensions** provide flexibility for direct coupling to machinery. With a **service factor of 1.15**, this motor can handle occasional overloads without compromising reliability, ensuring uninterrupted operation in critical industrial processes.

Whether used in **mining, manufacturing, oil and gas, or water treatment facilities**, the **Furnas Electric 3RH1921-2FA31 (Siemens 3RH19212FA31)** delivers a perfect balance of **power, efficiency, and durability**, making it a trusted choice for engineers and facility managers seeking a dependable electric motor solution.

### **Pros and Cons of buying a Furnas Electric 3RH1921-2FA31 (Siemens 3RH19212FA31) Water Heater**

#### **Pros**

1. **Reliable Brand Reputation** Furnas is a well-established brand under the Siemens umbrella, known for durable and efficient water heaters. Siemens itself is a trusted name in industrial and residential heating solutions, ensuring quality components and engineering.

2. **High Energy Efficiency** This model is likely designed with energy-saving features, such as thermal insulation and possibly a digital temperature control system. Energy-efficient water heaters reduce long-term electricity costs, making it a cost-effective choice over time.

3. **Fast Heating Performance** Electric water heaters like this one typically heat water quickly compared to gas models, providing hot water on demand without waiting for a pilot light or combustion process.

4. **Compact and Space-Efficient Design** Electric tank water heaters are generally smaller than gas models, making them suitable for homes with limited space, such as apartments or small bathrooms.

5. **Low Maintenance Requirements** Unlike gas water heaters, electric models have fewer moving parts and do not require flue systems or venting. This reduces maintenance needs, though regular flushing of the tank is still recommended to prevent sediment buildup.

6. **Safety Features** Modern electric water heaters often include safety mechanisms such as thermal cutoffs, pressure relief valves, and corrosion-resistant tanks to prevent leaks or overheating.

7. **Environmentally Friendly** Electric water heaters produce no direct emissions (unlike gas models), contributing to a cleaner environment if powered by renewable energy sources.

8. **Quiet Operation** Electric water heaters run silently compared to gas models, which can produce noise from pilot lights or venting.

9. **Compatibility with Smart Home Systems** Some Siemens/Furnas models may offer smart features like remote temperature control via apps, though this depends on the specific model s capabilities.

10. **Long Lifespan Potential** With proper maintenance, electric water heaters can last **10 15 years**, though the lifespan depends on water quality, usage, and tank material (e.g., glass-lined steel or stainless steel).

---

#### **Cons**

1. **Higher Upfront Cost** Electric water heaters are generally more expensive to purchase initially than gas models, though the price difference has narrowed in recent years due to rising gas costs.

2. **Electricity Costs Can Be High** Heating water electrically is more energy-intensive than gas, especially in regions with expensive electricity rates. Over time, this can lead to higher utility bills compared to gas models.

3. **Slower Recovery in High-Demand Situations** If multiple fixtures (e.g., shower, sink, washing machine) are used simultaneously, the heater may struggle to keep up, resulting in lukewarm water until the tank reheats.

4. **Dependence on Electrical Supply** Power outages will disable the heater, unlike gas models that can operate during brief interruptions (though gas models require proper venting and safety measures).

5. **Limited Installation Flexibility** Electric water heaters require a dedicated electrical circuit, often requiring a **30-amp or higher** breaker. Installation may require professional electrical work, adding to costs.

6. **Sensitivity to Water Quality** Hard water can accelerate mineral buildup inside the tank, reducing efficiency and lifespan. Regular descaling or using a water softener may be necessary.

7. **Less Ideal for Very Large Homes** While this model is likely a mid-sized tank (e.g., 40 50 gallons), very large households may need a bigger unit or a tankless system to meet demand without frequent reheating.

8. **Potential for Higher Insurance Costs** Some insurance providers may classify electric water heaters as higher risk due to electrical hazards, though this is rare and depends on the provider.

9. **Limited Lifespan Compared to Tankless** While tank water heaters last longer than some tankless models, they are still not as durable as high-quality tankless systems, which can last **20 years** with proper maintenance.

10. **Potential for Energy Loss** Electric water heaters lose heat through the tank walls, though modern models are well-insulated to minimize this.

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### **Conclusion**

The **Furnas Electric 3RH1921-2FA31 (Siemens 3RH19212FA31)** is a solid choice for homeowners seeking a **reliable, efficient, and low-maintenance** water heating solution. Its **energy efficiency, quiet operation, and durability** make it a practical investment for most households, especially in areas with **clean water and stable electricity supply**. However, **higher upfront costs and electricity expenses** may be drawbacks for budget-conscious buyers or those in regions with expensive power rates.

If you prioritize **convenience, safety, and long-term reliability**, this model is an excellent option. For **very large households or areas with high electricity costs**, you may want to compare it with **tankless models or gas heaters** to determine the best fit.

---

### **Recommendation**

- You need a **durable, low-maintenance** solution for a **mid-sized household** (2 4 people).

- Your home has **good electrical infrastructure** to support the unit.

- You live in an area with **moderate water hardness** and can perform **regular maintenance** (e.g., flushing the tank annually).

- You prefer **no gas venting or emissions** and want a **quiet, efficient** heater.

- You have a **very large household** (5 people) and need **instant hot water** (tankless may be better).

- Your **electricity costs are extremely high** (a heat pump water heater or gas model might be more cost-effective).

- You want **longest possible lifespan** (a premium tankless system could be worth the investment).

**Final Verdict:** This is a **strong, well-built electric water heater** that offers a good balance of performance, efficiency, and reliability. With proper care, it will serve you well for **10 15 years**, making it a **smart long-term purchase** for most homeowners.

Details:

Sells new and surplus product develops channels to purchase such. 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. All products are guaranteed to be working but may show signs of use if purchasing a used product.

part #: 3rh19212fa31 prices

• $19.99-$100.00

specifications automationjack:

• brand: Furnas Electric Co
• mpn: 3rh1921-2fa31

general automationjack:

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

returns automationjack:

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

shipping automationjack:

• type: Fixed
• cost: $12.90
• service: Standard
• class: Standard
• transit: 32-36 Days

offer automationjack:

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

seller automationjack:

• rating: 99.7%
• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 2020 72

payments automationjack:

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

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