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FastLITE Model FST (525W - 2.2kW)
The FastLITE Model FST delivers industry-leading emergency lighting performance with a fast-transfer design (≤ 2ms) and efficiency up to 98.8%. Available in both wall-mount and floor-mount configurations, it provides reliable backup power for LED fixtures, drivers, and all other emergency lighting loads, ensuring critical illumination remains uninterrupted during power loss.
With dedicated “normally on” and “normally off/switched” outputs, the FST offers flexibility to support a variety of lighting applications, from egress pathways to switched emergency circuits. Its 1500% peak overload capability handles the high inrush currents of LED fixtures with ease, guaranteeing seamless operation in demanding environments.
The FST goes beyond power delivery with advanced self-testing and diagnostics. It automatically performs weekly, periodic, and annual tests, complete with data logging, event histories, and time-stamped records to simplify reporting and system management. Facility teams can quickly access NFPA-compliant reports for inspections while ensuring the inverter is always ready to perform.
For added convenience, the FST Interface Application allows direct communication with a computer, laptop, or Windows tablet, making monitoring and configuration straightforward.
Designed for maximum efficiency, safety, and reliability, the FastLITE Model FST is the ideal solution for schools, hospitals, offices, retail spaces, and other facilities where dependable emergency lighting power is non-negotiable
Features
- Ultra-Fast Transfer Time – Keeps emergency lighting uninterrupted with transfer speeds of ≤ 2 milliseconds, ensuring safety and compliance in critical moments.
- High Efficiency Design – Operates at up to 98.8% efficiency, reducing energy costs and heat output while delivering reliable performance.
- LED-Optimized Performance – Handles up to 1500% peak overload capacity to accommodate the inrush current of LED fixtures and drivers, ensuring compatibility with modern lighting systems.
- Flexible Output Options – Includes both “normally on” and “normally off/switched” outputs, supporting diverse emergency lighting applications from egress lighting to switched circuits.
- Built-In Self-Testing & Reporting – Performs weekly, periodic, and annual self-diagnostics with automatic data logging, event histories, and time-stamped records—simplifying maintenance and inspection reporting.
- Easy System Monitoring – The FST Interface Application enables direct communication with a computer, laptop, or Windows tablet, making monitoring, configuration, and reporting more convenient.
Specifications
- Single Phase Sizes: 525W, 750W, 1.1kW, 1.44kW, 1.5kW, 1.7kW, 2kW, 2.2kW
- Nominal Input Voltage: 120V, 277V, or 347V, 1 phase, 60 Hz
- Input Voltage Range: Programmable ± 10% or +10%, –15% (without battery usage)
- Input Frequency: 60 Hz, ± 5% from nominal
- Output Power Rating: kVA at 1.0 power factor (kVA = kW)
- Nominal Output Voltage: 120V, 277V, or 347V, 1 phase, 60 Hz
- Output Regulation: ± 5% from nominal during full battery discharge, no load to full rated load
- Transfer Time: ≤ 2 milliseconds to and from battery
- Voltage Distortion: Maximum 3% THD while on battery under linear load
- Battery Recharge Time: 12 hours (runtimes up to 90 minutes), UL 924 and CSA compliant
- Charger: 3-stage, 3.5 amps, temperature compensated
- Overload Capability: 110% for 2 minutes 125% for 30 seconds 150% for 10 seconds 400% for 4 cycles (battery mode)
- LED Inrush Rating: Peak overload capability of 1500% when on AC power or battery
- Efficiency: Up to 98.8%
- Operating Temperature: 20°C to 30°C (UL 924 and C-UL models) Optimum battery life at 25°C
- Audible Noise: 45 dB typical
Documentation
Use Cases
Compliance Documents
Specifications
Instruction / Owners Manuals
Support
Services
Technical Support, Start Up Support, Preventative Maintenance, Field Service, In-house Repair, Spare Parts
Website: https://www.trystar.com/services/request-for-services/
Phone: 507-333-3990,1
Email: services@trystar.com
Sales Support
Quotes, lead times, and general product questions
Website: https://www.trystar.com/contact/
Phone: 507-333-3990,2
FAQs
What are fast-transfer emergency lighting inverters and why use them?
Fast-transfer lighting inverters supply utility power to feed the emergency lighting load under normal conditions. When a power outage occurs, emergency power is supplied to the load by the battery through the inverter. The transfer times to and from battery are typically under 2 milliseconds. This “fast-transfer” topology is preferred over slower “standby” inverters, while still providing the desired high efficiency operation.
What is the benefit of the “normally off / switched” output?
The “normally off” output is typically dedicated for standby emergency lighting which illuminates only during utility failure and test modes. However, this output can also be energized by using an external on/off control device (such as a wall switch or occupancy sensor). This allows the “normally off” output to be switched on/off when utility power is available. Emergency fixtures can then function as a part of the normal lighting design. However, during utility failure and test modes (inverter on battery), this on/off control is overridden, and the “Normally Off” output is energized to illuminate emergency lighting.rn
Are there self-diagnostics that differentiate the Model FST from standby and other fast-transfer inverters?
YES! In addition to performing the automatic periodic and annual tests mandated by NFPA 101, the Model FST performs a weekly self-diagnostic, without use of the battery. If the test fails, the unit will alarm, general alarm contacts will switch state, and the fault will be logged. After a test takes place or the unit goes to battery for any reason, the next test will automatically happen 7 days later. This self-diagnostic provides additional assurance that the Model FST is continuing its reliable operation.
Can all inverter systems handle the high inrush current associated with energizing normally off emergency fixtures?
No… not necessarily. Other manufacturers’ products may shut down if the high inrush current exceeds the inverter’s on battery overload rating. This is not the case with the Model FST. The Model FST has a peak overload capability of 1500% to accommodate inrush current from LED fixtures / drivers!
Is the FastLITE Model FST capable of operating both normally off and normally on lighting fixtures?
YES! Each Model FST has a “normally on” output and a “normally off / switched” output. Factory- or field-installed output breakers can be wired to one or both outputs as needed, in any combination.
Is the FastLITE Model FST NFPA 101 compliant?
YES! The Model FST meets NFPA 101, 7.9.3.1.3 u0022Periodic Testing of Emergency Lighting Equipmentu0022. It is defined as a computer-based, self-testing / self-diagnostic emergency lighting system with data-logging. Both periodic and annual tests are performed automatically, and the results are logged with a date and time stamp. Both alarm and test logs provide a history of events, and the ability to generate an NFPA-compliant report!
Why is an Output Surge Protection Device (SPD) important?
More and more LED fixtures are being used for emergency lighting. LEDs require a driver circuit to illuminate, consisting of electronic components. Needless to say, power quality is important to ensure LED fixture reliability. The Model FST’s SPD has a 40kA peak surge current rating, offering real protection. The SPD option also includes a status indicator and alarm to continually advise if the SPD is fully operational. It’s important to note that most standby and other fast-transfer inverters offer limited to no protection from voltage surges and spikes. This lack of protection can lead to premature failure of emergency lighting.
Designed for Real-World Demands
Discover how this product is used across markets for different applications.
Commercial
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Education
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Government
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Healthcare
We offer power solutions to hospitals, medical centers, and emergency response departments to provide reliable and uninterrupted power, helping them to meet patient needs efficiently and safely.