RIELLO UPS 20-A4 Sentryum Phase 20KVA/18KW 208V S3U

( Brand: Riello Ups ), ( Manufacturer Part Number: 20-A4 ), ( Type: Ups )

Review RIELLO UPS Sentryum 20kva/18kw 208v Phase S3u

The Riello Sentryum 20kVA/18kW 208V Three-Phase S3U Switchgear is a versatile and reliable power protection solution designed for small to medium-sized businesses and data centers. This switchgear is manufactured by Riello UPS, a leading provider of uninterruptible power supply (UPS) systems and associated power protection equipment.

The Sentryum 20kVA/18kW switchgear is a 208V three-phase unit, making it suitable for use in applications that require a stable and consistent power supply in a three-phase configuration. The unit comes with a rated output power of 20kVA or 18kW, depending on the specific load requirements of your application.

The Sentryum switchgear is equipped with Riello's advanced S3U automatic transfer switch (ATS) technology, which ensures a seamless transition between the mains power supply and the UPS system in the event of a power failure or voltage disturbance. The S3U ATS utilizes a self-diagnostic and self-testing function to ensure reliable operation and provide early warning of any potential issues.

The Riello Sentryum 20kVA/18kW switchgear is also designed with easy installation and maintenance in mind. The unit features a compact and modular design, allowing for simple integration into existing power infrastructure. Additionally, the switchgear is equipped with easily accessible front-mounted batteries and a user-friendly LCD display, making routine maintenance and battery replacement a straightforward process.

The Sentryum switchgear also offers excellent energy efficiency, with a high-efficiency transformer that reduces energy waste and lowers operating costs. The unit is also compliant with various international safety and performance standards, including IEC 60947-2-1, IEC 60950-1, and IEC 61558.

In summary, the Riello Sentryum 20kVA/18kW 208V Three-Phase S3U Switchgear is a powerful and efficient power protection solution for businesses and data centers that require a stable and consistent three-phase power supply. With advanced S3U ATS technology, easy installation and maintenance, excellent energy efficiency, and compliance with international safety and performance standards, the Sentryum switchgear is an ideal choice for ensuring uninterrupted power and minimizing the risk of downtime.

The Riello Sentryum 20kVA/18kW 208V three-phase, S3U, static transfer switch generator is a popular choice for backup power solutions. Here are some pros and cons that might help you make an informed decision.

1. High Power Output: This generator provides a power output of 20kVA or 18kW, making it suitable for powering larger homes or small businesses.

2. Parallel Capability: It has the capability to be paralleled with other generators for increased power output and redundancy.

3. Automatic Transfer Switch (ATS): The Sentryum comes with a built-in automatic transfer switch that seamlessly switches between utility power and generator power, ensuring a continuous power supply.

4. Quiet Operation: Riello generators are known for their low noise levels, making them ideal for residential applications.

5. Fuel Efficiency: The generator is fuel-efficient, with a low fuel consumption rate.

1. Cost: The Riello Sentryum is a more expensive option compared to some other generators in its class.

2. Weight: At around 1,300 pounds, this generator is quite heavy and requires a sturdy base or mounting system for installation.

3. Maintenance: Like any generator, regular maintenance is required to keep it running efficiently.

The Riello Sentryum 20kVA/18kW 208V three-phase generator offers several advantages, including high power output, automatic transfer switch, quiet operation, fuel efficiency, and parallel capability. However, it also comes with some disadvantages, such as cost, weight, and maintenance requirements. Ultimately, the decision to purchase this generator depends on your specific power needs, budget, and installation capabilities. If you have the budget and require a reliable, high-power backup power solution, the Riello Sentryum is an excellent choice. If cost is a concern, you may want to consider a less expensive generator.

Details:

Retired from functional setting and may show signs of wear consistent with previous installation/removal. Large color touchscreen display and LED status indicator. The Sentryum 10-60 kVA at 208 V, 60 Hz offers the best combination of power availability, energy efficiency and global performance ensuring installation running cost savings. Sentryum is designed and built using state-of-the-art technology components.

Flexibility of use. Maximum reliability. The Sentryum series is a transformer-free UPS available in 10-20-30-40-50-60 kVA with three-phase input and output. Preowned Riello Sentryum 20kVA/18kW 208V 3 Phase UPS S3U-20-A4

Operating efficiency up to 95.5%. Furthermore, Riello UPS's technological advances in digital control and power components contribute to minimize the impact on grid. Outstanding battery care and smart management.

Includes NEW batteries. Input/Output Connections: Hardwired. High power availability.

part #: 20a4 price

• $15889.90

specifications unipowerseek:

• brand: Riello Ups
• mpn: 20-a4
• type: Ups

payments unipowerseek:

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

offer unipowerseek:

• started: November 25, 2025
• options: Ship-to-home
• availability: In Stock
• sold: 0
• quantity: 1
• best offers: True

returns unipowerseek:

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

general unipowerseek:

• condition: Used
• Computers/Tablet's Networking > Power Protection, Distribution > Uninterruptible Power Supplies

shipping unipowerseek:

seller unipowerseek:

• rating: 100.0%
• # reviews: 600
• city: Minneapolis, Minnesota

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