FK-5-1-12 extinguishing agent sealed in microcapsules within the patch substrate. Stable at room temperature, 10+ year storage life.
Purely physical mechanism, 140°C auto-response. No power, sensors, or control system required.
After discharge, only the core needs replacement. Housing is reusable, significantly reducing maintenance cost.
FK-5-1-12 with ODP=0, GWP=1. No residue, non-conductive, non-corrosive to precision equipment.
Three-stage color indicators (80/100/120°C) show the maximum temperature the patch has experienced.
~1L covers 0.6m³ enclosed space. Compact installation, fits various electrical enclosures.
Compact internal space. PFCS patches attach to busbars, circuit breakers, and other critical points for point-to-point protection.
Thermal runaway risk in battery modules. PFCS proactively intervenes in early thermal runaway stages, preventing chain reactions.
Medium/high-voltage switchgear arcing risk. PFCS patches placed in contact/able compartments for rapid initial fire suppression.
Dense server racks in data centers. Single-rack independent PFCS deployment for precise protection against chain fires.
| Parameter | Value |
|---|---|
| Model | PFCS |
| Agent Type | Clean extinguishing agent (FK-5-1-12) |
| Activation Temp | approx. 140°C (tolerance ±10°C) |
| Temp Indicator | 80/100/120°C 3-stage color change |
| Activation | Passive (no power required) |
| Installation | Adhesive / Magnetic / Latching |
| Housing | Flame-retardant engineering plastic |
| Shelf Life | ≥10 years |
| Agent ODP | 0 |
| Agent GWP | 1 |
The PFCS protective sheet is a multi-layer composite that encapsulates a heat-reactive inner layer between a durable carrier substrate and a top surface engineered for the target environment. When surface temperature exceeds a defined threshold, the inner layer expands and forms an insulating char, choking off oxygen from any nascent arcing or thermal event at the surface it protects. The architectural choice to use a multi-layer composite rather than a monolithic sheet has two consequences. First, the protective layer remains mechanically stable well below activation temperature, which means routine operations are unaffected. Second, the activation itself is sharply bounded: the layer either deploys under its designed stimulus or remains dormant, with no partial-state ambiguity. Customers evaluating PFCS for retrofits often visit the pilot factory to observe this activation with their own panels, which is the most direct way to align expectation with engineering reality.
PFCS sheet coverage is not a uniform recommendation. Critical junction zones, exposed busbars, and surfaces adjacent to terminations are the highest-priority placements; large flat surfaces with limited exposure can usually wait for the next retrofit cycle. CHILION's deployment guide walks the installer through a coverage selection logic that takes cabinet geometry, fault-current rating, and ambient temperature range as inputs and produces a coverage map. Installation crews who follow this process generally complete the application at a faster pace than crews who treat coverage as a uniform spreading task, because the high-priority zones are demarcated ahead of time. Wiring strategies inside a cabinet also matter: shielded cabling routed through the coverage zones can interact with the PFCS layer in ways that the engineering team reviews during design review.
Calibration and measurement discipline is the foundation of credible alert output. Sensors that drift produce false alarms that erode operator trust; sensors that are not recalibrated produce missed events. Our deployment methodology specifies calibration intervals that respect the sensor class and the operating environment, with the discipline embedded in the maintenance record rather than left to the operator's initiative.
How often should sensors be calibrated?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
The regulatory landscape that applies to electrical-safety equipment continues to evolve, with periodic updates to IEC, GB, and UL regimes and a corresponding need for the deployment to remain audit-ready across those updates. Our deployment documentation maps the current configuration to the applicable standards with version tags, so a future audit can quickly verify that the deployment still satisfies the regime in force at the time of inspection.
Which standards apply to a typical deployment?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Field feedback from across our installed base flows into our quarterly product-development cycle. Customers who participate in our field-feedback program see their observations reflected in subsequent firmware revisions, configuration improvements, and accessories. This is the loop that distinguishes a vendor with an installed base from a vendor with a marketing channel: the latter collects feedback into a presentation, the former collects feedback into a roadmap.
How is field feedback used in product development?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Calibration and measurement discipline is the foundation of credible alert output. Sensors that drift produce false alarms that erode operator trust; sensors that are not recalibrated produce missed events. Our deployment methodology specifies calibration intervals that respect the sensor class and the operating environment, with the discipline embedded in the maintenance record rather than left to the operator's initiative.
How often should sensors be calibrated?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
The regulatory landscape that applies to electrical-safety equipment continues to evolve, with periodic updates to IEC, GB, and UL regimes and a corresponding need for the deployment to remain audit-ready across those updates. Our deployment documentation maps the current configuration to the applicable standards with version tags, so a future audit can quickly verify that the deployment still satisfies the regime in force at the time of inspection.
Which standards apply to a typical deployment?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Calibration and measurement discipline is the foundation of credible alert output. Sensors that drift produce false alarms that erode operator trust; sensors that are not recalibrated produce missed events. Our deployment methodology specifies calibration intervals that respect the sensor class and the operating environment, with the discipline embedded in the maintenance record rather than left to the operator's initiative.
How often should sensors be calibrated?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
Calibration and measurement discipline is the foundation of credible alert output. Sensors that drift produce false alarms that erode operator trust; sensors that are not recalibrated produce missed events. Our deployment methodology specifies calibration intervals that respect the sensor class and the operating environment, with the discipline embedded in the maintenance record rather than left to the operator's initiative.
How often should sensors be calibrated?
This section reflects the deployment practice we've refined across the installed base. Customers who want more detail on the specific topic for their site can request a focused engagement through the contact form on our contact page.
How long does PFCS remain active once installed?
Most retrofits can be performed with the cabinet de-energized and isolated for the duration of the work, with surrounding circuits remaining live.
Yes, sample layouts are available for the most common cabinet geometries in the downloads section.
PFCS components are tested against applicable IEC and GB standards for thermal barrier materials used inside energized enclosures.