BENSHAW Frequency Drive

( Brand: Benshaw ), ( Manufacturer Part Number: RSI-005-SS-4C ), ( Model: BENSHAW RSI-005-SS-4CS SERIES ), ( Part Type: Drive ), ( Input Voltage: 415-480v ), ( Number Of Phases: 3-phase )

Review BENSHAW Series Variable Frequency Drive

The **Benshaw RSI-005-SS-4CS** is a high-performance, compact, and versatile **vector-controlled frequency drive** designed to deliver precise speed and torque control for a wide range of industrial applications. Part of Benshaw s **RSI series**, this drive combines advanced **scalable vector control (SVC)** technology with a robust, modular design to provide reliable, energy-efficient motor control in demanding environments. With a **400V AC input rating** and a **continuous output current of 5.0A**, the RSI-005-SS-4CS is well-suited for applications requiring smooth acceleration, deceleration, and position control, such as conveyor systems, pumps, fans, mixers, and automated machinery. Its **4-channel (4CS) communication interface** supports **RS-485 Modbus RTU**, enabling seamless integration with PLCs, SCADA systems, or other industrial controllers for centralized monitoring and control. The drive s **scalable vector control** ensures minimal torque ripple and superior dynamic response, making it ideal for applications where smooth operation and energy savings are critical.

Built with **industrial durability in mind**, the RSI-005-SS-4CS features a **compact, DIN-rail-mountable enclosure** that maximizes space efficiency while maintaining protection against dust, moisture, and electrical interference (IP20 rating). Its **wide input voltage range (380 480V AC, 50/60Hz)** ensures compatibility with global power systems, while the **PWM inverter output** delivers efficient power conversion to three-phase motors, reducing energy consumption and heat generation. The drive s **user-friendly interface** includes a **backlit LCD display** with intuitive navigation, allowing operators to configure parameters such as speed, acceleration/deceleration ramps, and fault diagnostics with ease. Advanced protection features, including **overcurrent, overvoltage, undervoltage, and overtemperature protection**, enhance reliability and extend the drive s operational lifespan.

For applications requiring **remote monitoring and control**, the RSI-005-SS-4CS supports **Modbus RTU communication**, enabling real-time data exchange with higher-level systems for predictive maintenance and process optimization. Its **scalable architecture** allows for easy expansion, as additional communication modules or control options can be integrated as system requirements evolve. Whether used in **HVAC systems, material handling, or process automation**, this frequency drive delivers **consistent performance, energy efficiency, and long-term reliability**, making it a cost-effective solution for modern industrial automation needs. With Benshaw s reputation for **high-quality engineering and customer support**, the RSI-005-SS-4CS stands as a dependable choice for engineers and technicians seeking a **compact yet powerful** frequency drive solution.

### **Pros and Cons of buying a Benshaw RSI-005-SS-4CS Frequency Drive**

#### **Pros**

1. **High Reliability and Durability** Benshaw is a well-established brand known for manufacturing robust industrial components, including frequency drives. The RSI-005-SS-4CS is designed for continuous operation in demanding environments, reducing the risk of frequent failures.

2. **Wide Voltage and Current Range** This model supports a broad input voltage range (200 480V AC) and can handle up to 0.5 kW (0.67 HP) at 400V, making it suitable for various motor sizes and applications. This flexibility allows for easy integration into different systems without requiring additional components.

3. **Built-in Protection Features** The drive includes overvoltage, undervoltage, overload, and short-circuit protection, which helps prevent damage to both the drive and connected equipment. This enhances safety and extends the lifespan of the system.

4. **Compact and Space-Efficient Design** The SS (Space-Saving) variant is designed to occupy less installation space compared to standard models, which is beneficial in applications with limited panel or enclosure space.

5. **Easy Installation and Configuration** The drive features a user-friendly interface with parameter settings that can be adjusted via keypad or communication protocols (e.g., Modbus RTU). This simplifies setup and maintenance, reducing downtime.

6. **Compatibility with Standard Motors** It is designed to work seamlessly with standard three-phase AC motors, making it a versatile choice for pumps, fans, conveyors, and other industrial machinery.

7. **Energy Efficiency** Frequency drives like this one optimize motor performance by adjusting speed and torque, leading to energy savings, especially in applications where variable speed control is required (e.g., variable flow pumps).

8. **Low Maintenance Requirements** Due to its robust construction and protective features, the RSI-005-SS-4CS typically requires minimal maintenance, reducing operational costs over time.

9. **Cost-Effective for Low-Power Applications** For small to medium industrial applications (up to 0.5 kW), this drive offers a balance between performance and affordability compared to higher-end models.

10. **Global Availability and Support** Benshaw has a strong global presence, ensuring easy access to spare parts, technical support, and service networks, which is crucial for long-term reliability.

---

#### **Cons**

1. **Limited Power Rating** The 0.5 kW (0.67 HP) rating makes this drive unsuitable for high-power applications (e.g., large motors, heavy machinery, or high-torque loads). Users requiring higher power will need a more robust model.

2. **Basic Feature Set** Compared to advanced frequency drives (e.g., from Siemens, ABB, or Schneider), the RSI-005-SS-4CS lacks sophisticated features such as:

- Advanced PID control

- Built-in communication protocols beyond Modbus RTU (e.g., Ethernet/IP, Profibus)

- High-resolution parameter tuning

- Integrated motor protection (e.g., thermal overload monitoring beyond basic settings)

- Regenerative braking capabilities

These limitations may require additional external devices for complex applications.

3. **No Touchscreen or Advanced HMI** The control interface is limited to a basic keypad, which can be less intuitive for users who prefer graphical interfaces or remote monitoring via tablets or PCs.

4. **Potential Compatibility Issues with Non-Standard Motors** While it works with standard motors, non-standard motors (e.g., those with unique winding configurations or special requirements) may not be fully compatible without additional adjustments or external components.

5. **Limited Environmental Ratings** The drive is typically rated for indoor or protected outdoor use (IP20 or similar). For harsh environments (e.g., dusty, corrosive, or high-vibration settings), a higher IP-rated enclosure may be necessary, adding to the cost.

6. **Dependence on External Power Supply** Like all frequency drives, it requires a stable power source. Fluctuations or poor-quality power can affect performance, and additional filtering or UPS solutions may be needed in unstable electrical environments.

7. **No Built-in Energy-Saving Modes** Advanced drives often include features like soft start/stop, auto-tuning, or energy-saving algorithms. The RSI-005-SS-4CS lacks these, which may limit efficiency gains in certain applications.

8. **Limited Warranty Compared to Premium Brands** While Benshaw offers a standard warranty, it may not match the extended warranties or lifetime support provided by premium brands like ABB or Siemens.

9. **Learning Curve for Advanced Users** Although simple to operate, users with experience in high-end drives may find the lack of advanced features or documentation limiting for complex applications.

10. **Potential for Higher Long-Term Costs in Complex Systems** For applications requiring extensive communication, integration with PLCs, or advanced control logic, additional hardware (e.g., gateways, converters) may be needed, increasing total cost of ownership.

---

### **Conclusion**

The **Benshaw RSI-005-SS-4CS** is a **reliable, cost-effective, and space-efficient frequency drive** well-suited for **low-to-medium power industrial applications** where simplicity, durability, and basic variable speed control are prioritized. It excels in scenarios such as:

- Small motor control (e.g., pumps, fans, conveyors under 0.5 kW)

- Applications requiring basic protection and ease of installation

- Environments where space is limited

- Budget-conscious projects where advanced features are unnecessary

- High-power applications (above 0.5 kW)

- Complex control systems requiring advanced PID, communication, or regenerative braking

- Harsh or unprotected outdoor environments without additional enclosures

- Applications needing remote monitoring or integration with modern SCADA/PLC systems

---

### **Recommendation**

- You need a **simple, reliable, and affordable** frequency drive for **low-power ( 0.5 kW) motors**.

- Your application does **not require advanced features** like Ethernet communication, touchscreen control, or regenerative braking.

- You operate in a **controlled environment** with stable power and minimal space constraints.

- You prefer a **well-known brand** with good global support and a track record of durability.

- You require **higher power ratings** or **advanced control features**.

- Your system demands **Ethernet/IP, Profibus, or other high-speed communication protocols**.

- The application involves **complex motor tuning, regenerative braking, or energy optimization**.

- You need **remote monitoring, touchscreen interfaces, or integration with modern industrial networks**.

For most **small-scale industrial or commercial applications** where cost and simplicity are key, the RSI-005-SS-4CS is a **solid choice**. However, for **larger or more demanding systems**, investing in a more advanced drive may justify the higher upfront cost through improved efficiency, flexibility, and long-term reliability.

Details:

Benshaw RSi-005-SS-4Cs Series Variable Frequency Drive Used working when removed.

part #: rsi005ss4c prices

• $575.00-$938.00

specifications variablfrequen:

• brand: Benshaw
• mpn: Rsi-005-ss-4c
• model: Benshaw Rsi-005-ss-4cs Series
• part type: Drive
• input voltage: 415-480v
• number of phases: 3-phase

general variablfrequen:

• Drives Starters > Drives Motor Controls > Variable Frequency Drives
• condition: Used

payments variablfrequen:

• other
• credit card: Visa
• wallet: Paypal

offer variablfrequen:

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

returns variablfrequen:

• policy: No Returns

shipping variablfrequen:

• carrier: USPS
• transit: 4-10 Days
• type: Calculated
• class: Standard
• cost: $12.40
• service: USPS Ground Advantage

seller variablfrequen:

• city: Celina, Ohio
• rating: 100.0%
• # reviews: 19

Benshaw RSI-005-SS-4C Is Similar To:

• Rsi-050-sg-4b Rsi-050-sg-4-b Benshaw Variable Frequency Drive Sg (53.8% similar) Benshaw variable frequency drive sag rsi 050 sag 4b 50HP 75 amps see attached photo for other specs 65 lbs...(March 23rd, 2016)
• Rsi200sg4b Benshaw 200 Hp New Variable Frequency Drive Combo With Breaker (59.4% similar) ...(January 20th, 2016)
• Rsi-003-gx-4 Hp Benshaw 3hp Vfd Inverter 380-460v Model Daikin Pt 300043200 (21.5% similar) New in box Benshaw FD model rsi 003 GX 4 serial 2 rating ac 380 480V hp 3 diking part no FD inverter 3HP 380 460V...(July 20th, 2016)
• Rsi-002-g-4 Benshaw Variable Speed Drive (52.6% similar) 5KW this item is used and in working condition...(January 5th, 2019)
• Rsi-002-gx-4 Benshaw Series Gx Variable (48.9% similar) Expedited shipping available, call us for a quote. Please do if there are any questions or concerns. Condition: please view photos a few scuffs around the edges. Please if you do not have a street address...(November 13th, 2017)
• Rsi-005-gx-4 Benshaw Gx Series Variable (57.4% similar) Benshaw GX series variable speed drive great used shape with warranty included...(August 17th, 2017)
• Rsi-015-sg-4b Benshaw Variable Frequency Drive Hp Volt (58.7% similar) Benshaw variable frequency drive RSI-015-SG-4B 15 hp 480 volt...(May 9th, 2018)
• Rsi-025-sg-4b Benshaw Ph Rsi Sg Series Varible Frequency Drive (75.2% similar) New old stock RSI-020-SG-4BGOOD condition...(May 25th, 2018)
• Rsi-040-sg-4b Benshaw Variable Frequency Drive Vfd (61% similar) This was taken out of storage today and tested. This is a used 480V 55AMP 40HP Benshaw sensor-less vector drive RSI-040-SG-4B variable frequency drive, that has been in storage for few years. Unit powers up and works as it should. See the picture of. Standard features: - I o: 8 digital inputs, 2 ...(November 8th, 2018)
• Rsi-075-sg-4-cba Benshaw Variable Frequency Drive Hp Ph Amps (55.7% similar) Benshaw variable frequency drive. 60 hp, 3 ph, 460V, 77 amps. Never installed. In steel enclosure with manual. P/N RSI-075-SG-4-CBA...(July 22nd, 2018)
• Benshaw Rsm10-60-6-12 Motor Controller 60hp 600 575v 3ph 60hz Ac Drive (43.2% similar) Ryan MRI sells factory new and pre-owned surplus products develops channels to purchase such product. Manufacturer part number: RSM10-60-6-12...(September 2nd, 2024)