
DuraLife® RHW-2/RHH/R90 Two-Hour Fire-Rated Power Cables
Certified to the harsh requirements of the UL 2196 Test for Fire Resistive Cables, DuraLife® RHW-2/RHH/R90 is a 600V two-hour fire-rated cable designed to provide an easy-to-install, cost effective means of protecting critical emergency systems when under fire conditions. DuraLife® RHW-2/RHH/R90 meets the code requirements for circuit survivability.
Description: The patent pending DuraLife® RHW-2/RHH/R90 cables are the only two-hour fire-rated polymeric products fully tested at 600V for both US and Canadian use. Additionally, DuraLife® RHW-2/RHH/R90 products are the most comprehensive fire-rated solution offering the versatility of both EMT and phenolic conduit installation in both horizontal and vertical directions.
Standards:
- Certified to UL 2196 / ULC S-139 Standard for Two-Hour Fire Resistive Cable
- Electrical Circuit Integrity System FHIT 28F & FHIT7 28F. Fire Resistive Directory R21213
- UL44 Listed for Thermoset Insulated Wires & Cables 600V&1000V/90°C RHW-2/RHH, 1000V/R90
- Meets NFPA 70 (Articles 517, 695, 700, 708, 728 & 760), 72, 101, 130, and 502
- Meets IEEE 1202/FT4-ST1
- Meets FT2 Horizontal Flame
FEATURES & BENEFITS:
- The most comprehensive and versatile two-hour fire-rated solution for 600V power applications
- Installs in EMT or phenolic conduit
- Full range of constructions 14 AWG through 500 MCM
- Two-Hour Certified for both vertical and horizontal installations
- Certification includes ancillary components
- Low Smoke, Zero Halogen
- Approved splice available
- Economic alternative to both MI and MC options
- Easy to install – no special tools or procedures required
- Long length availability eliminates need for splice
- Readily available
- Custom Colors Available
Applications:
- Fire Pumps
- Emergency Generators
- Ventilating Fans
- Emergency Lighting
- Emergency Elevators
- High Rise Buildings
- Hospitals
- Places of Mass Assembly
SPECIFICATIONS

DuraLife® RHW-2/RHH/R90 Two-Hour
Fire-Rated Power Cables
Hardware & Accessories Certified: (Refer to DuraLife® Installation Instructions for details)
- EMT/Conduit: Wheatland/Western Tube; Allied/Atkore
- Set-Screw Coupling and Fittings: Hubbell Raco
- Compression Fittings: Appleton
- Phenolic Conduit: Conduit and Couplings: Champion Flame
Shield Type XW - Pull Boxes
- NEMA 1: Eaton/Cooper
- Type 4X: Nvent/Hoffman
- Pulling Lubricant – Polywater LZ
Download DuraLife® RHW-2/RHH/R90 Two-Hour Specs
Radix DuraLife® Power Cables | Horizontal / Vertical Installation – EMT Raceway | Horizontal/Vertical Installation – Champion Flame Shield Phenolic Conduit Type XW | |||||||
---|---|---|---|---|---|---|---|---|---|
DuraLife Part Number | Conductor Size | Conductor Strands | Overall Diameter | Insulation System Thickness | Approx. Weight (lbs) | Ampacity 75°C (amps) | Ampacity 90°C (amps) | Number of Conductors | Number of Conductors |
5 | 5 | ||||||||
RHW14A007 | 14 AWG | 7 | .218″ | 45 Mil | 29 | 20 | 25 | 1 1/4″ | 1 1/4″ |
RHW12A007 | 12 AWG | 7 | .236″ | 45 Mil | 38 | 25 | 30 | 1 1/4″ | 1 1/4″ |
RHW10A007 | 10 AWG | 7 | .260″ | 45 Mil | 52 | 35 | 40 | 1 1/4″ | 1 1/4″ |
RHW08A007 | 8 AWG | 7 | .320″ | 60 Mil | 83 | 50 | 55 | 1 1/2″ | 1 1/2″ |
RHW06A007 | 6 AWG | 7 | .357″ | 60 Mil | 120 | 65 | 75 | 2″ | 2″ |
RHW04A007 | 4 AWG | 7 | .404″ | 60 Mil | 175 | 85 | 95 | 2 1/2″ | 2 1/2″ |
RHW03A007 | 3 AWG | 7 | .432″ | 60 Mil | 208 | 100 | 115 | 2 1/2″ | 2 1/2″ |
RHW02A007 | 2 AWG | 7 | .463″ | 60 Mil | 252 | 115 | 130 | 2 1/2″ | 3″ |
RHW01A019 | 1 AWG | 19 | .540″ | 80 Mil | 335 | 130 | 145 | 2 1/2″ | NA |
RHWX1A019 | 1/0 | 19 | .580″ | 80 Mil | 409 | 150 | 170 | 3″ | NA |
RHWX2A019 | 2/0 | 19 | .625″ | 80 Mil | 501 | 175 | 195 | 3″ | NA |
RHWX3A019 | 3/0 | 19 | .675″ | 80 Mil | 617 | 200 | 225 | 3 1/2″ | NA |
RHWX4A019 | 4/0 | 19 | .741″ | 80 Mil | 762 | 230 | 260 | 3 1/2″ | NA |
RHW25A037 | 250 MCM | 37 | .808″ | 95 Mil | 912 | 255 | 290 | 3 1/2″ (H) / 4″ (V) | NA |
RHW30A037** | 300 MCM | 37 | .855″ | 95 Mil | 1075 | 285 | 320 | 4″ | NA |
RHW35A037 | 350 MCM | 37 | .911″ | 95 Mil | 1235 | 310 | 350 | 4″ | NA |
RHW40A037** | 400 MCM | 37 | .956″ | 95 Mil | 1404 | 335 | 380 | 4″* | NA |
RHW50A037 | 500 MCM | 37 | 1.04″ | 95 Mil | 1730 | 380 | 430 | 4″* | NA |
See manufacturer’s instructions for additional options and detailed conduit fill by awg size, orientation, conduit type.
Must follow UL Electrical Circuit Protective System 28F and all provisions of the National Electrical Code (NFPA 70).
See National Electrical Code (NFPA 70) section 240-3.
Ampacity based on three current carrying conductors in a conduit and a 30°C (88°F) ambient temperature. Note that the table does not take voltage drop into consideration.
* 4 Conductors.
** Special order items, minimums apply.