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Vertiv Liebert® Network Power Switch NPS-II FL4 200 Amp 4 Pole
Intelligent Static Transfer Switch for Mission-Critical Power Continuity
In today’s digital-first world, organizations rely heavily on uninterrupted electrical power to keep their business-critical applications, IT infrastructure, industrial automation systems, and communication networks operational. Even a momentary power interruption can lead to application downtime, data corruption, operational disruption, and significant financial losses.
The Vertiv Liebert® Network Power Switch NPS-II FL4 200 Amp 4 Pole is an intelligent static transfer switch engineered to ensure uninterrupted power availability by automatically transferring the connected load between two independent power sources whenever abnormalities are detected. The Liebert® Network Power Switch portfolio is specifically designed to eliminate failures caused by power distribution problems and provide maximum reliability for critical loads.
Radiant Info Solutions is a trusted Vertiv partner delivering complete consultation, supply, installation, commissioning, testing, and lifecycle support for Vertiv Network Power Switch solutions across India.
Our experienced engineers help enterprises deploy highly reliable intelligent power switching solutions for Data Centers, Banking, Healthcare, Manufacturing, Telecom, Cloud Infrastructure, Government Organizations, and Enterprise IT facilities.
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How it Works
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Reach out to our team via phone, email, or our website contact form. Provide some basic information about your business and plans you’re interested in.
Our Team Review the Requirement
Our experts will review your current need and explore the best options to optimize your requirements, ensuring you get the most cost-effective and efficient solution for your business.
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After the review, we will provide you with a detailed, personalized quotation, including pricing and recommendations tailored to your business needs.
Get started today by contacting us, and let’s find the best solution for your business!
Why Partner with Us?
Authorized Vertiv Partner for ITMS Solutions
Radiant Info Solutions is a certified Vertiv partner, delivering trusted IT Management Solutions. We provide genuine products with manufacturer-backed warranties and support.
End-to-End Infrastructure Management
From KVM systems to IT racks, and PDUs, we offer complete Vertiv ITMS solutions. Our expertise ensures your IT infrastructure runs efficiently and reliably.
Certified Technical Team & Expert Deployment
Our trained engineers handle design, installation, and commissioning of Vertiv solutions. We ensure seamless integration with minimal disruption to your operations.
Proactive Maintenance & Support Services
Radiant offers AMC, preventive maintenance, and remote monitoring support. We help you avoid downtime and extend the life of your critical infrastructure.
Nationwide Reach with Fast Delivery
With PAN India presence and logistics, we ensure timely delivery and support for Vertiv products. Our responsive team is available for on-site service wherever needed.
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Active Client Sites
15+ Years
Expierence in Deployment
10+
Certified Technical Experts
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Technical Assistance
What is Vertiv Liebert® NPS-II FL4 200 Amp?
The Vertiv Liebert® NPS-II FL4 200 Amp is a Three Phase Four Pole Intelligent Static Transfer Switch designed for applications where redundant power sources are available.
The switch continuously monitors two independent AC power sources and automatically transfers the connected load whenever the preferred source experiences voltage or frequency abnormalities.
Unlike conventional manual transfer switches, the NPS-II utilizes semiconductor switching technology and an independent microprocessor-based control system to perform high-speed automatic transfers while maintaining uninterrupted power to mission-critical equipment. The brochure explains that the switch uses semiconductor switches, user-selectable parameters, and an independent microprocessor to ensure continuity of power whenever one source fails.
Technical Specifications – Vertiv Liebert® Network Power Switch NPS-II FL4 200 Amp 4 Pole
| Specification | Details |
| Model | Vertiv Liebert® NPS-II FL4 |
| Current Rating | 200 Amp |
| Input / Output | Three Phase |
| Switching Configuration | 4 Pole (Phase + Neutral) |
| Nominal Voltage | 400 / 415V (3 Phase + Neutral) |
| Voltage Tolerance | Low Band: -30% to +15%, Medium Band: -25% to +15%, Narrow Band: -15% to +15% |
| Frequency | 48–52 Hz (Nominal), Wide: 40–70 Hz |
| Efficiency | >97% |
| Transfer Time | High Sensitivity: <3 ms, Medium: <5 ms, Low: <8 ms |
| Overload Capacity | 110% for 1 Hour, 150% for 1 Minute, 1000% for 100 ms |
| Manual Bypass | Available |
| Cooling | Forced Cooling |
| Operating Temperature | 0°C to 40°C |
| Relative Humidity | Up to 95% Non-Condensing |
| Protection | IP20 |
| Communication | RS485 Modbus (Optional) |
| Testing Standard | IEC 62310-3 |
| Dimensions | 1000 × 600 × 1950 mm |
| Weight | Approx. 250 kg |
The above specifications make the 200 Amp FL4 model an ideal solution for medium to large enterprise electrical infrastructures requiring highly reliable automatic source transfer.
Why Choose Vertiv NPS-II FL4 200 Amp?
Organizations operating critical electrical infrastructure require much more than simple backup power.
They require:
- Intelligent power source monitoring
- Automatic transfer capability
- Millisecond switching
- Maximum system availability
- High reliability
- Continuous protection against power anomalies
The Vertiv Liebert NPS-II FL4 delivers all these capabilities in a compact enterprise-grade solution.
Benefits
Continuous Business Operations
Automatic source transfer minimizes downtime and ensures uninterrupted operation of business-critical infrastructure.
Improved Infrastructure Reliability
Dual-source monitoring significantly reduces risks associated with power distribution failures.
Faster Fault Response
Millisecond switching protects sensitive IT equipment before abnormal conditions affect operations.
Enhanced Equipment Protection
Built-in protection against under-voltage, over-voltage, overload, and short circuits extends equipment lifespan.
Simplified Monitoring
LCD display, LED indicators, and optional Modbus communication simplify infrastructure management.
Scalable Deployment
Suitable for enterprise server rooms, edge facilities, industrial environments, and large-scale data centers.
Key Features
Intelligent Static Transfer Technology
The NPS-II FL4 continuously monitors both incoming power sources and instantly switches to the healthier source whenever voltage or frequency moves beyond preset limits.
This intelligent operation protects connected equipment from unexpected utility disturbances while maintaining uninterrupted power availability.
Three Phase Four Pole Architecture
The FL4 model is designed as a Three Phase + Neutral (4 Pole) transfer switch.
The additional neutral switching capability makes it suitable for modern electrical systems requiring complete phase and neutral isolation during source transfer.
Ultra-Fast Transfer Performance
The Vertiv NPS-II FL4 offers three sensitivity settings:
- High Sensitivity: <3 ms
- Medium Sensitivity: <5 ms
- Low Sensitivity: <8 ms
Such rapid switching minimizes disruption to servers, storage systems, network devices, industrial controllers, and other sensitive electronic equipment.
High Energy Efficiency
The 200 Amp model delivers an operating efficiency exceeding 97%, reducing operational losses while ensuring continuous power delivery to mission-critical loads.
Complete Protection
The NPS-II FL4 protects connected infrastructure against:
- Input Under Voltage
- Input Over Voltage
- Output Overload
- Output Short Circuit
These built-in protection mechanisms improve equipment safety while reducing downtime.
Independent Microprocessor Control
An independent micro-controller continuously evaluates source quality, manages source priority selection, and performs automatic switching without relying on external control systems.
This intelligent architecture improves operational reliability while simplifying power management.
Manual Bypass Facility
The integrated manual bypass allows maintenance activities without interrupting the connected critical load, improving serviceability and minimizing downtime.
LCD Monitoring Interface
The front LCD provides comprehensive visibility into system status, including:
- Source Voltages
- Output Load
- Date & Time
- Source Health
- Source Priority
- Transfer Status
- Sensitivity Mode
- Fault Conditions
This allows operators to monitor the system in real time and quickly respond to any abnormal operating conditions.
Optional RS485 Modbus Communication
The optional RS485 Modbus interface enables integration with Building Management Systems (BMS) and centralized infrastructure monitoring platforms for remote status monitoring and alarm reporting.
Applications
The Vertiv Liebert® Network Power Switch NPS-II FL4 200 Amp is widely deployed across mission-critical industries where uninterrupted power is essential.
Data Centers
Protect enterprise servers, storage arrays, virtualization platforms, blade chassis, and networking equipment from power distribution failures.
Banking & Financial Institutions
Ensure uninterrupted operation of transaction processing systems, ATMs, banking applications, and financial infrastructure.
Healthcare
Maintain continuous power for hospital IT systems, diagnostic equipment, medical imaging devices, and patient management systems.
Telecom Infrastructure
Support telecom switching stations, communication hubs, and carrier-grade networking infrastructure.
Manufacturing & Industrial Automation
Protect PLCs, SCADA systems, robotics, process automation equipment, and industrial control systems.
Government & Defence
Deliver reliable redundant power for mission-critical government facilities and command centers.
The Vertiv brochure specifically identifies Data Centers, Call Centers, Process Control, and Automation as primary applications where the NPS-II intelligently monitors dual power sources to provide uninterrupted power to critical loads.
Radiant Info Solutions – Your Trusted Vertiv Power Infrastructure Partner
Radiant Info Solutions is a leading Vertiv Dealer, Supplier, Partner, Consultant, and System Integrator delivering enterprise-grade power continuity solutions across India.
Our expertise extends beyond product supply—we provide comprehensive consultation, solution design, OEM procurement, installation, integration, testing, commissioning, preventive maintenance, and lifecycle support for Vertiv critical power infrastructure.
Whether you’re building a new data center, modernizing an enterprise server room, upgrading industrial automation systems, or implementing redundant UPS architecture, Radiant ensures seamless deployment of the Vertiv Liebert® Network Power Switch NPS-II FL4 200 Amp 4 Pole, enabling uninterrupted operations, enhanced equipment protection, and long-term business continuity.
Why Choose Radiant as Your Preferred Vertiv Partner?
Radiant Info Solutions is the preferred partner for Vertiv, offering unmatched expertise in Vertiv’s power and IT infrastructure solutions. With a commitment to customer satisfaction, Radiant provides tailored solutions, exceptional service, and reliable support, ensuring seamless and efficient operations for all your IT needs.
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Frequently Asked Questions
What is Vertiv NPS-II FL4 200 Amp?
It is a Three Phase Four Pole intelligent static transfer switch designed to provide uninterrupted power by automatically switching between two independent power sources.
What is the switching time?
Depending upon sensitivity settings, switching occurs in less than 3 milliseconds to 8 milliseconds
Is manual bypass available?
Yes, the NPS-II FL4 includes an integrated manual bypass facility.
Can it be connected to a BMS?
Yes. Optional RS485 Modbus communication enables Building Management System integration.
What industries use this solution?
Data Centers, Telecom, Banking, Healthcare, Manufacturing, Government, Industrial Automation, and Enterprise IT.
What protections are available?
Input Under Voltage, Input Over Voltage, Output Overload, and Output Short Circuit protection.
Does Radiant provide installation?
Yes. We offer consultation, supply, installation, commissioning, integration, and lifecycle support across India.
Is the product suitable for dual UPS architecture?
Yes. It is specifically designed to work with redundant power sources including dual UPS systems or UPS plus bypass supply.
Does Radiant provide AMC?
Yes. We offer preventive maintenance, health checks, spare support, and comprehensive Annual Maintenance Contracts.
Why should I choose Radiant Info Solutions?
Radiant combines certified Vertiv expertise, nationwide deployment capability, experienced engineers, and end-to-end power infrastructure services to deliver highly reliable business continuity solutions.
To find out more speak to one of our Vertiv Sales specialists !
Call: +91-11-46515639/40 or email: leads@radiant.in
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