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Product

UL 1424 / NEC Article 760 Fire Alarm Cables300 V UL 1424UL 1666 RiserNEC Article 760

FPLR Riser Fire Alarm Cable300 V UL 1424 / UL 1666 riser-rated power-limited fire alarm cable (18–12 AWG)

Type FPLR (Power-Limited Fire Alarm Riser Cable) is manufactured to UL 1424 and NEC Article 760 for vertical riser shafts penetrating more than one floor and general non-plenum fire alarm wiring, verified to prevent floor-to-floor vertical flame propagation un

UL 1666 Riser
UL 1424 / NEC 760
Unshielded / Foil
Order designation
FPLR 16/2 Unshielded
Outer Ø ≈
4.4 mm
Copper weight
25 kg/km
Total weight ≈
36 kg/km
Min. bend R
35 mm
All sizes (13)
Request a quoteDatasheetWhatsApp
Engineering reply in 2 business hoursCut-to-length export drumsEN 10204 3.1 certificate per drum
Voltage rating
300 V
Power-limited fire alarm (NEC 760)
Riser flame test
UL 1666
Vertical shaft flame height <12 ft
Conductor range
18 to 12 AWG
Solid bare annealed copper
Insulation
FR-PVC / PP
Flame-retardant PVC or polypropylene
Operating temp
-20 to +75 °C
UL 75 °C temperature rating
Min. bend radius
8 × cable OD
Vertical shaft & conduit pulling

Typical values for this cable type, based on UL 1424 / UL 1666 (NEC Art. 760) — confirmed in the datasheet and quotation for your order.

Application fit

Is FPLR right for your machine?

Engineered for vertical riser shafts, electrical closets, non-plenum ceiling spaces and conduit pathways connecting addressable smoke detectors, pull stations, NAC strobes and voice evacuation speakers under NFPA 72.

Fixed installation

Suitable

Certified for vertical riser runs between floors, raceways, cable trays and non-plenum ceilings.

Free-hanging vertical run

Suitable

UL 1666 vertical riser flame rating stops floor-to-floor fire spread in multi-story shafts.

Switchgear & control cabinet wiring

Suitable

Terminates directly into UL 864 FACP terminals, remote annunciators and booster power supplies.

Motorised monospiral reel

Not suitable

Solid ASTM B3 copper conductors are intended solely for fixed building installation.

S07HXCHX-F screened flex
Typical machinesMulti-story commercial buildingsResidential & hotel towersWarehouses & manufacturingRetail & shopping centresSchools & healthcare

Construction

Layer by layer

Solid bare copper conductor (ASTM B3, 18–12 AWG) + colour-coded FR-PVC/PP insulation + optional 100 % Al-Mylar foil shield with tinned copper drain wire + red UL 1666 riser PVC jacket + ripcord.

1234
Schematic, not to scale — generated from the layer data
#LayerMaterial & reference
1Solid bare copper conductorSolid annealed uncoated copper (18, 16, 14 or 12 AWG) per ASTM B3ASTM B3
2Flame-retardant riser insulationColour-coded flame-retardant PVC or low-capacitance polypropylene compoundUL 1424
3Al-Mylar shield + drain (shielded)100 % coverage aluminum/polyester tape with stranded tinned copper drain wireUL 1424
4UL 1666 riser outer jacketFlame-retardant riser-grade PVC outer jacket with integral ripcord, Fire Alarm RedUL 1666

FPLR Unshielded

2C and 4C unshielded riser cable for Notification Appliance Circuits (NAC), horn/strobes and conventional zones.

FPLR Overall Foil Shielded (OAS)

100 % Al-Mylar tape + tinned Cu drain wire for EMI-protected SLC addressable loops and voice evac speakers.

Technical data

Ratings & operating limits

Typical values: Typical values for this cable type, based on UL 1424 / UL 1666 (NEC Art. 760). Values for your order are confirmed in the datasheet and quotation.

Electrical

NEC / UL voltage rating
300 V rms (power-limited fire alarm)
Dielectric withstand test
1500 V AC for 1 minute
Nominal capacitance (18 AWG)
≈75 pF/m unshielded · ≈138 pF/m shielded

Thermal

UL temperature rating
75 °C
Operating temperature range
-20 °C to +75 °C

Mechanical

Min. installation bend radius
8 × cable OD
Ripcord
Integral nylon ripcord for fast jacket stripping

Resistance

Vertical riser shaft flame test
UL 1666 (145 kW propane burner, flame propagation <12 ft / 3.66 m, temp <454.4 °C at 12 ft)
Substitution hierarchy
Replaces Type FPL, CMR, CL3R and CL2R per NEC 760.154(B)

Reference standards

Safety standard
UL 1424 Type FPLR & UL 1666
Installation code
NFPA 70 (NEC Article 760) & NFPA 72

Identification

Conductor colour code
2C: Black, Red · 4C: Black, Red, Brown, Blue
Jacket colour
Fire Alarm Red

Sizes

13 standard configurations (FPLR)

Nominal dimensions, masses and electrical ratings for FPLR according to UL 1424 / UL 1666 (NEC Art. 760).

Dimensions & masses
DesignationAWG & CoresArea mm²Outer Ø ≈
mm		Copper
kg/km		Total weight ≈
kg/km		Min. bend R
fixed mm		Enquiry
FPLR standard series
FPLR 18/2 Unshielded2C × 18 AWG0.82 mm²3.8162530
FPLR 18/4 Unshielded4C × 18 AWG0.82 mm²4.5314336
FPLR 16/2 Unshielded2C × 16 AWG1.31 mm²4.4253635
FPLR 16/4 Unshielded4C × 16 AWG1.31 mm²5.2506342
FPLR 14/2 Unshielded2C × 14 AWG2.08 mm²5.3405442
FPLR 14/4 Unshielded4C × 14 AWG2.08 mm²6.3799850
FPLR 12/2 Unshielded2C × 12 AWG3.31 mm²6.2638150
FPLR 18/2 Shielded OAS2C × 18 AWG OAS0.82 mm²4.0192832
FPLR 18/4 Shielded OAS4C × 18 AWG OAS0.82 mm²4.7354738
FPLR 16/2 Shielded OAS2C × 16 AWG OAS1.31 mm²4.6284037
FPLR 16/4 Shielded OAS4C × 16 AWG OAS1.31 mm²5.4536843
FPLR 14/2 Shielded OAS2C × 14 AWG OAS2.08 mm²5.5435944
FPLR 12/2 Shielded OAS2C × 12 AWG OAS3.31 mm²6.4678751
  • Typical values for this cable type; dimensions and weights for your order are confirmed in the quotation.
  • Nominal outer diameters and weights are subject to manufacturing tolerances per UL 1424 / UL 1666 (NEC Art. 760).

Quality & approvals

Testing & inspection

Routine tests on every production length, sample and type tests per batch — documented on an EN 10204 3.1 inspection certificate.

  1. ConductorClass 5 stranding
  2. Spark test100 % in-line
  3. Lay-upCores, earth, fillers
  4. SheathingInner, braid / screen, outer
  5. Electrical testsAC voltage, resistance
  6. DimensionsOD, wall thickness
  7. Inspection documents & dispatchDrum & dispatch
Testing & inspectionTest value / referenceFrequency
Routine tests
1500 V AC dielectric test & spark testZero insulation breakdown per UL 1424100 % of reels
DC conductor resistance checkConforms to ASTM B3 at 20 °C100 % of reels
Sample tests
UL 1666 vertical riser shaft flame testFlame propagation height <12 ft (3.66 m) and temperature <850 °F (454.4 °C) at 12 ftUL Type FPLR listing

Inspection certificate

Issued with every drum, listing the routine test results for that length.

Product approvals

UL 1424 Type FPLRUL 1666 Vertical RiserNFPA 70 (NEC Article 760)NFPA 72 National Fire Alarm CodeRoHS 3 Compliant

Company certificates

ISO 9001ISO 14001ISO 45001VDE marks approvalUL / cULCE · LVD / EMC

Marking & supply

Ordering & delivery

Sheath marking

TEBAOFLEX E-FILE 14 AWG 2C (UL) TYPE FPLR OR CL3R 75C UL 1666 FIRE ALARM CABLE [foot/meter mark]
Delivery form
Fumigated export wooden drums or shrink-wrapped coils
Standard drum lengths
500 m · 1000 m standard drums (cut lengths on request)
MOQ
100 m (stock sizes) · 300–500 m (production)
Lead time
2–4 weeks ex-works
Incoterms
EXW, FOB, CIF, DAP

Technical documents

Downloads

PDFFPLR Riser Fire Alarm Cable – technical datasheet13 sizes · construction, technical data, approvalsXLSXFPLR spec data (Excel)All 13 sizes with dimensions and data, for your BOM or quotation
Revision
2026-10-20
Updated
2026-10-20

FAQ

Questions engineers ask first

Not covered here? Send your drawing — an engineer replies within 2 business hours.

What does the UL 1666 test verify on Type FPLR fire alarm cables?
UL 1666 simulates a multi-story building riser shaft using a 145 kW propane burner in a two-story vertical compartment. To qualify as Type FPLR, flame propagation along the vertical cable bundle must not reach 12 feet (3.66 m) and gas temperature at 12 feet must stay below 850 °F (454.4 °C).
Can Type FPLR cable be installed in ceiling spaces?
Type FPLR can be installed in vertical riser shafts, inside conduit, and above suspended ceilings that are NOT used for environmental return-air handling. If the space above the drop ceiling serves as an open HVAC return-air plenum without conduit, Type FPLP must be used.
What lower-grade cables can Type FPLR replace under the NEC?
According to NEC Table 760.154, Type FPLR is permitted to substitute for general-purpose Type FPL fire alarm cable as well as Type CMR and Type CL3R/CL2R riser cables.
How do installers calculate maximum NAC run length on FPLR?
Divide the maximum allowable voltage drop of the Notification Appliance Circuit (typically 2.0 to 3.0 V on a 24 VDC regulated panel output) by the total strobe alarm current, then select 16, 14 or 12 AWG FPLR based on the round-trip loop resistance in Ω/km.

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FPLR Riser Fire Alarm Cable

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