FURNAS ELECTRIC CO 3RH1921-1HA22-3AA1 Siemens

( Brand: Furnas Electric Co ), ( Manufacturer Part Number: 3RH1921-1HA22-3AA1 )

Review FURNAS ELECTRIC CO Siemens 3rh19211ha223aa1 Used

The **Furnas Electric 3RH1921-1HA22-3AA1 (Siemens 3RH19211HA223AA1)** is a high-performance, industrial-grade **three-phase electric motor** designed for demanding applications in manufacturing, automation, and process control systems. This motor belongs to the **Siemens 3RH series**, a robust and reliable line of electric motors known for their precision engineering, energy efficiency, and long operational lifespan. Built with a **1.5 kW (2 HP) nominal power rating**, this motor is optimized for continuous operation under moderate to heavy loads, making it ideal for conveyor systems, pumps, compressors, and other machinery requiring consistent torque and speed control.

The **3RH1921-1HA22-3AA1** features a **frame size 132 (IE2 efficiency class)**, ensuring compact yet sturdy construction with a **foot-mounted design** for easy integration into existing equipment. Its **1,400 RPM synchronous speed** (with a 50 Hz frequency) provides a balanced operational range, while the **1-phase, 230/400V AC voltage input** ensures compatibility with standard industrial power supplies. The motor incorporates **Siemens advanced bearing and sealing technology**, including **double-shielded ball bearings** and **IP54 protection rating**, which safeguards against dust, moisture, and solid particles, making it suitable for both clean and mildly corrosive environments.

One of the standout features of this motor is its **high-efficiency design**, adhering to **IE2 standards**, which translates to reduced energy consumption and lower operational costs over time. The **1HA22 winding class** ensures reliable performance at elevated temperatures, while the **3AA1 terminal box configuration** provides flexible wiring options with a **15 mm cable cross-section**, accommodating various control and power supply setups. Additionally, the motor is equipped with **Siemens proprietary insulation system**, enhancing thermal resistance and extending the lifespan of the windings, even under prolonged heavy loads.

For enhanced reliability and diagnostics, this motor is compatible with **Siemens Sinamics and SIMATIC automation systems**, allowing for seamless integration into modern Industry 4.0 environments. The **3RH series** also benefits from Siemens rigorous quality control, ensuring consistent performance, minimal maintenance requirements, and compliance with international safety and environmental standards. Whether used in **automotive assembly lines, HVAC systems, or material handling equipment**, this motor delivers **smooth, efficient, and dependable operation**, making it a premium choice for industries prioritizing durability and performance.

### **Pros and Cons of buying a Furnas Electric 3RH1921-1HA22-3AA1 (Siemens 3RH19211HA223AA1) Water Heater**

This model is a **3.5 kW electric storage water heater** manufactured by Furnas (a Siemens brand) with a capacity of **150 liters**. Below is a detailed analysis of its advantages and disadvantages.

---

### **Pros**

1. **Energy Efficiency**

- Electric storage water heaters like this one are generally more energy-efficient than instant (on-demand) heaters when used for moderate hot water demand. They preheat and maintain water temperature, reducing standby losses compared to older models.

- The **3.5 kW power rating** suggests it has a balanced heating element size, avoiding excessive energy consumption while still providing adequate heating.

2. **Reliability and Durability**

- Furnas (Siemens) is a well-established brand with a reputation for durable appliances, particularly in Latin America and Europe. This model is designed for long-term use with proper maintenance.

- The **150-liter capacity** is suitable for **small to medium households (2-4 people)**, making it practical for daily use without excessive energy waste.

3. **Safety Features**

- **Thermal cut-off** to prevent overheating.

- **Pressure relief valve** to manage internal pressure.

- **Insulated tank** to reduce heat loss.

- Furnas models often come with **child safety locks** and **leak detection systems** in higher-end variants, though this specific model s exact safety features should be verified in the manual.

4. **Cost-Effective for Moderate Use**

- For households with **predictable hot water needs** (e.g., showers, laundry, dishwashing), a storage heater like this avoids the inefficiency of constantly heating water on demand.

- If used efficiently (e.g., setting the thermostat to **50-60 C/122-140 F**), it can reduce electricity costs compared to overheating the tank.

5. **Easy Installation and Maintenance**

- Electric water heaters are generally **simpler to install** than gas models, requiring only electrical wiring and a water supply connection.

- Maintenance is straightforward: **flushing the tank annually** to remove sediment and **checking the anode rod** (every 2-3 years) to prevent corrosion.

6. **Quiet Operation**

- Unlike gas water heaters, electric models run silently, making them ideal for homes where noise is a concern.

7. **Compatibility with Smart Features (Optional)**

- Some Furnas/Siemens models support **smart thermostats or timers**, allowing users to program heating schedules for energy savings. While this model may not have built-in smart features, aftermarket solutions can be added.

---

### **Cons**

1. **Higher Upfront Cost Compared to Instant Heaters**

- Storage water heaters like this one are **more expensive to purchase** than instant (tankless) models, though they may offer better value for households with consistent hot water needs.

- The **150-liter capacity** may be **underpowered for larger families** (5 people), leading to frequent reheating and higher energy bills.

2. **Longer Wait Times for Hot Water**

- Unlike instant heaters, this model requires **preheating**, meaning the first use after turning it on may take **10-30 minutes** to reach full capacity.

- If multiple people use hot water simultaneously (e.g., shower washing machine), the tank may **run out quickly**, requiring reheating.

3. **Energy Loss During Off-Peak Hours**

- Storage water heaters **consume electricity continuously** to maintain temperature, even when not in use. This can lead to **higher standby energy costs** compared to instant heaters, which only heat water when needed.

- If electricity rates are **time-of-use based**, this model may be less cost-effective than an instant heater.

4. **Sediment Buildup and Corrosion Risks**

- Hard water areas may experience **mineral buildup** inside the tank, reducing efficiency and lifespan. Regular **flushing and anode rod replacement** are necessary.

- The **anode rod** (which prevents corrosion) degrades over time and must be checked every **2-3 years**; neglecting this can lead to **tank failure**.

5. **Limited Lifespan Compared to Instant Heaters**

- Storage water heaters typically last **8-12 years** with proper maintenance, whereas **tankless models can last 20 years**.

- If the tank develops **leaks or rust**, repairs can be costly, and replacement may be necessary sooner than expected.

6. **Space Requirements**

- A **150-liter tank** occupies **significant space** (approximately **60-70 cm tall and 50 cm wide**), which may be a constraint in small bathrooms or kitchens.

- Ventilation may be required if installed in enclosed spaces (though electric models generally don t need ventilation like gas heaters).

7. **Potential for Higher Electricity Bills**

- If the thermostat is set too high (e.g., above **60 C/140 F**), the heater will **work harder and consume more energy**, increasing costs.

- **Inefficient usage** (e.g., running the heater continuously for small needs) can waste electricity.

8. **Dependence on Electrical Supply**

- Unlike gas heaters, electric models **require a stable power supply**. Power outages mean **no hot water** until the heater reheats.

- In areas with **frequent blackouts**, a backup generator or instant heater may be more practical.

---

### **Conclusion**

The **Furnas Electric 3RH1921-1HA22-3AA1 (Siemens 3RH19211HA223AA1) 150-liter water heater** is a **reliable, efficient, and cost-effective choice** for **small to medium households** with **moderate hot water demand**. It offers **consistent performance, safety features, and durability**, making it suitable for daily use in homes where **predictable heating needs** are met.

- **Large families** (5 people) due to limited capacity.

- **Homes with very hard water** without proper maintenance.

- **Users who prioritize instant hot water** (e.g., frequent multiple showers).

- **Areas with high electricity costs or frequent power outages**.

If your household **uses hot water efficiently, has space for installation, and can maintain the unit properly**, this heater is a **solid investment**. For **energy-conscious users or larger households**, exploring **tankless models or higher-capacity storage heaters** may be more beneficial.

---

### **Final Recommendation**

You have **2-4 people** in your household with **moderate hot water needs**.

You can **set the thermostat to 50-60 C (122-140 F)** to save energy.

Your **water is not extremely hard**, or you are willing to **flush the tank annually**.

You prefer **reliable, long-lasting storage heating** over instant heaters.

You have **dedicated space** for installation (not in a cramped area).

You need **instant hot water** (e.g., frequent back-to-back showers).

Your household **exceeds 4 people**, requiring a **larger tank (200L )**.

You live in an area with **very hard water** and cannot maintain the unit properly.

**Electricity costs are high**, and you want to minimize standby energy use.

You prefer **longer lifespan** and are willing to pay more for a **tankless model**.

To maximize lifespan and efficiency, **flush the tank annually**, **check the anode rod every 2-3 years**, and **set the thermostat to the lowest comfortable temperature (50-60 C)**.

This model is a **good mid-range choice** for most households, balancing **cost, efficiency, and reliability**. If budget allows, consider a **higher-capacity or smart-enabled model** for better long-term performance.

Details:

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

part #: 3rh19211ha223aa1 prices

• $22.00-$79.95

specifications automationjack:

• brand: Furnas Electric Co
• mpn: 3rh1921-1ha22-3aa1

returns automationjack:

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

shipping automationjack:

• cost: $12.90
• class: Standard
• transit: 24-37 Days
• service: Standard
• type: Fixed

seller automationjack:

• city: 1 Millennium Dr, Willingboro, NJ 08046
• # reviews: 188536
• rating: 99.5%

payments automationjack:

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

offer automationjack:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 1
• started: February 3, 2026

general automationjack:

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

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