Nearly 2×
Global electricity demand
Data-center electricity use is projected to rise from 485 TWh in 2025 to 950 TWh in 2030.
IEA · 2026 outlook ↗APPLICATION / FIREXNULL
Supplemental Fire Suppression for Data Center Electrical Enclosures
An added layer of protection for concealed electrical risks. Explore passive, heat-activated suppression for compatible PDUs, remote power panels, busway units and supporting control equipment.
IN SHORT
Passive Fire Suppression Inside Data Center Electrical Enclosures.
FireXNull products add passive, heat-activated fire suppression inside compatible data center electrical enclosures, including PDUs, remote power panels, busway tap-off units, switchgear sections and UPS electrical cabinets. Microcapsules release FK-5-1-12 clean agent at the product's activation temperature: 248°F ± 9°F (120°C ± 5°C) for FXN Sticker and FXN Tape, and 428°F ± 9°F (220°C ± 5°C) for FXN Rope. They need no power or wiring and serve as a supplemental layer alongside room-level detection and suppression, not a replacement for it.
01 / THE INDUSTRY CONTEXT
Growing Compute. Greater Demands on Electrical Infrastructure.
Data centers are expanding, AI servers are becoming more power-dense, and major outages remain costly.
11×
AI-server power density
Power density increased elevenfold between 2020 and 2025, according to the IEA.
IEA · 2020–2025 data ↗57%
Major outages cost over $100,000
Of respondents to Uptime Institute’s 2025 survey, 57% reported their most recent major outage exceeded $100,000.
Uptime Institute · 2026 report ↗Industry context: these figures describe energy demand, AI-server density and outages from all causes. They do not measure the likelihood of a fire.
02 / LOCALIZED ELECTRICAL RISKS
Focus on the Connections Inside.
A loose connection, electrical arc or overheating component can become an ignition source inside an electrical enclosure. Equipment-level evaluation starts with these concealed connection points.
Uptime Institute's 2026 outage analysis identifies power as the leading cause of impactful outages, with failures involving UPS systems, transfer switches and generators most common. Uptime Institute · 2026 report ↗
- PDUs and remote power panelsInternal connections, breakers and termination points.
- Busway tap-off and plug-in unitsEnclosed connection points along overhead power distribution.
- Transfer switch and switchgear sectionsCompatible enclosed sections with terminations and bus connections.
- UPS electrical cabinetsInput, output and bypass sections. Battery strings require separate evaluation.
- Supporting control enclosuresBuilding and power monitoring panels and other compatible control equipment.
03 / AN ADDED LAYER OF PROTECTION
Localized Protection. Matched to the Enclosure.
FireXNull adds localized, heat-activated suppression inside compatible electrical enclosures as an additional layer alongside existing facility protection.
Where It Fits in the Protection Stack
On a phone, scroll sideways to see all columns.
| Layer | Scope | How it activates | Role |
|---|---|---|---|
| Room clean agent or sprinkler system | Whole room or zone | Detection system, or heat at the sprinkler head | Facility protection designed to applicable codes |
| Early-warning smoke detection | Room, hall or in-rack air sampling | Smoke particles in sampled air | Early alert to staff and systems |
| FireXNull in-enclosure suppression | Inside one compatible enclosure | Heat at the product reaches its activation temperature | Supplemental, localized layer at the likely ignition source |
FireXNull does not send an alarm signal and does not replace any of these layers.
FXN Rope
For compatible electrical cabinets where a secured rope installation is appropriate.
Explore FXN Rope →FXN Sticker
For compatible small electrical enclosures, subject to enclosure sizing and installation requirements.
Explore FXN Stickers →04 / PRODUCT SELECTION
Which Format Fits Which Equipment.
Reference values from the current FireXNull Technical Data Sheets. The equipment listed are candidates for engineering evaluation, not validated installations. Suitability depends on enclosure construction, electrical clearances, operating temperature, airflow and application-specific testing.
On a phone, scroll sideways to see all columns.
| FXN Rope | FXN Sticker | FXN Tape | |
|---|---|---|---|
| Enclosures to evaluate | Larger cabinets: PDU and RPP cabinets, switchgear and transfer switch sections, UPS electrical cabinets | Smaller enclosures: control and monitoring panels, compatible busway tap-off and plug-in units | Individual connection points: terminals, terminal blocks, wire junctions and bus connectors |
| Format | Flexible rope, 0.20–0.28 in (5–7 mm) diameter | Adhesive-backed sticker, 0.04–0.08 in (1–2 mm) thick | Adhesive-backed tape, 0.6–4.0 in (15–100 mm) wide, cuttable |
| Activation temperature | 428°F ± 9°F (220°C ± 5°C) | 248°F ± 9°F (120°C ± 5°C) | 248°F ± 9°F (120°C ± 5°C) |
| Sizing reference | By enclosure volume and rope length. FXN-R30: up to 1.0 ft³ (30 L). FXN-R100: 2.5–3.5 ft³ (65–100 L). Larger models up to 70 ft³ (2,000 L) per TDS; contact FireXNull for availability | By enclosure volume. FXN-S20: 0.7 ft³ (20 L) through FXN-S65: 2.3 ft³ (65 L). FXN-SA4 cuts to match | By connection, not enclosure volume. Cut to length and wrap to cover the connection |
| Placement | Horizontal, along the upper interior, routed near terminations and busbars while keeping required clearances | Top interior surface (ceiling), above likely ignition sources | Wrapped around the connection with overlapping turns |
| Operating environment | Sustained ambient at or below 149°F (65°C), up to 80% RH, non-condensing | ||
| Service life | Single use; replace after any activation. Recommended replacement 5 years after installation, with periodic visual inspection | ||
| Details | FXN Rope → | FXN Sticker → | FXN Tape → |
Sources: TDS-FXN-RPE-001-US V3.6, TDS-FXN-STK-001-US V3.7 and TDS-FXN-TPE-001-US V3.6 (August 2026). Last updated October 2026. Sizing references are not guaranteed coverage or extinguishment performance. If an enclosure falls between two models, select the next larger model. Enclosures with significant air leakage, vents or active forced cooling, which are common in data center equipment, require an application review by FireXNull.
05 / THE CLEAN AGENT
Why a Clean Agent Near IT Equipment.
FireXNull products use microencapsulated FK-5-1-12, an electrically non-conductive clean agent that evaporates without leaving a residue. When heat at the product reaches its activation temperature, the capsules release the agent inside the enclosure, close to the source. No wiring, power supply or detection hardware is required. Per its TDS, minor rope-matrix residue may remain after FXN Rope activates.
After any fire event, equipment should be inspected by qualified personnel before returning to service. How the technology works →
06 / ENGINEERING REVIEW
Start with the Application Details.
For an engineering review, share:
- Equipment type, manufacturer and model.
- Internal enclosure dimensions and internal geometry.
- Ventilation, vents or forced-air cooling in the enclosure.
- Sustained operating temperature and humidity.
- Location of terminations, busbars and other likely ignition points.
- Mounting points, electrical clearances, service access and equipment manufacturer instructions.
07 / COMMON QUESTIONS
Common Questions.
Does FireXNull replace a room clean agent system, sprinklers or smoke detection?
No. FireXNull is a supplemental, localized layer installed inside compatible electrical enclosures. Code-required detection, alarm and suppression systems remain in place and must be designed and maintained according to applicable codes.
Does it need power, wiring or a connection to the fire alarm panel?
No. Activation is passive and triggered by heat at the product. Because it is not connected to a fire alarm system, it does not send an alarm signal or notification.
Is the agent electrically conductive?
No. FK-5-1-12 is an electrically non-conductive clean agent. For the electrical properties of each finished product, installation clearances and placement, refer to that product's Technical Data Sheet and the equipment manufacturer's instructions.
What about enclosures with vents or forced-air cooling?
Air leakage, vents and active cooling affect how the released agent stays in the enclosure. The Technical Data Sheets call for an application review by FireXNull for these enclosures before selection.
Why do Rope and Sticker have different activation temperatures?
Each format has its own specified activation temperature: 428°F ± 9°F (220°C ± 5°C) for FXN Rope and 248°F ± 9°F (120°C ± 5°C) for FXN Sticker and FXN Tape. Consider the enclosure's normal operating temperature and the product's placement when selecting a format.
Does equipment need to be shut down for installation?
Yes. Installation should be performed by qualified personnel with the circuit and equipment de-energized and verified, following applicable lockout/tagout procedures. Plan installation within scheduled maintenance windows.
How often are products inspected or replaced?
Inspect periodically for secure mounting, damage or obstruction. The recommended replacement is 5 years after installation, or immediately after any activation. These intervals are maintenance guidance, not a performance guarantee.
Are FireXNull products UL Listed or FM Approved?
No. FireXNull products are not UL Listed or FM Approved as fire suppression products. The UL Recognized Component Material reference applies only to the FXN Tape component material (FXN-15L acrylate sheet, HB flammability classification), not to fire suppression performance.
How do we know which product fits our enclosure?
Share the enclosure type, internal dimensions, ventilation, operating temperature and mounting details. Our team reviews product fit against the Technical Data Sheet for each product.
FireXNull provides supplemental protection. Product suitability must be evaluated for each installation. It does not replace required fire detection, suppression, electrical maintenance or applicable codes, and is not complete room, server or data-center fire protection.
Related applications: Industrial Control Panels & Switchgear · Wire Connections & Terminals · Energy Storage (BESS) & Power Conversion · FAQ · Safety Data Sheets
Discuss Your Data Center Application
Share your enclosure details for an engineering review, or request the current Technical Data Sheets and Safety Data Sheets for your evaluation file.