300 MCM XHHW-2 Stranded Copper Building Wire

300 MCM XHHW-2 Stranded Copper Building Wire

Applications:

300 MCM copper XHHW-2 is installed in conduit and other NEC-recognized raceways for services, feeders, and branch circuits, in wet or dry locations at up to 600V. It's rated 285A at 75°C and 320A at 90°C. Typical uses:

• 250A feeders with headroom for derating

• 500A services run as two parallel sets

• 800A services run as three parallel sets

• Feeders to chillers and large rooftop units

Also Known As: 

300 MCM Wire, 300 KCMIL Wire, 300 XHHW Cable 37 Strand, 300 KCMIL CU Cable, 300 MCM Copper Cable, 300 KCMIL CU Cable, 300 XHHW-2 Copper Building Wire, 300 XHHW Cable, 300 XHHW Service Wire, 300 XHHW-2 Copper Wire, 300 CU Building Wire, 300 Black Stranded CU SIMpull XHHW-2 Wire, Southwire 11305099, Southwire Wire, 300 MCM XHHW Building Wire, XHHW Stranded Building Wire.

300 MCM XHHW-2 Copper Data Center Applications

In data centers, 300 MCM copper XHHW-2 is used for feeders between switchgear, UPS systems, PDUs, and panels. Data center loads run continuously, so NEC 215.2 sizes feeders at 125% of the load unless the breaker is 100% rated.

• Single-run feeders for 225A continuous loads (281A at 125%)

• Three parallel sets for 800A switchboards

• Feeders to chillers and cooling plant equipment

Construction:

Conductor: 

Class B compressed stranded bare copper per ASTM B3 and ASTM B8

Insulation:

Cross Linked Polyethylene (XLPE) with SIMpull Technology. Silicone-Free, Abrasion, High-Heat, Moisture Resistant.

Features:

• SIS- 8 AWG
• Sunlight resistant
• -40°C Cold bend
• FT1
• Gasoline and Oil Resistant II
• CT Rated- 1/0 AWG and larger
• FT4- 350 kcmil and larger
• RoHS/REACH Compliant

Standards:

• ASTM B3 Soft or Annealed Copper Wire
• ASTM B8 Concentric-Lay-Stranded Copper Conductors
• ASTM B787 19 Wire Combination Unilay-Stranded Copper Conductors
• UL 44 Thermoset-Insulated Wires and Cables
• UL 1685 Vertical-Tray Fire Propagation and Smoke Release Test (1/0 and Larger)
• CSA C22.2 No. 38 Thermoset-insulated wires and cables
• ICEA S-95-658 (NEMA WC70) Power Cables Rated 2000 Volts or Less for the Distribution of Electrical Energy
• IEEE 1202/FT4 Flame Test (70,000 BTU/hr) 350kcmil and Larger
• Made in America: Compliant with both Buy American and Buy America Act (BAA) requirements per 49 U.S.C. § 5323(j) and the Federal Transit Administration Buy America requirements per 49 C.F.R. part 661
• Federal Specification A-A-59544
• NMX-J-451-ANCE Thermoset insulated wires and cables
• NOM-063-SCFI Electrical Products – Conductors – Safety Requirements

Specifications:

• Size : 300 MCM
• Number of  Strands: 37
• Diameter Over Conductor ( Inch ): 0.610
• Insulation Thickness (mils): 65
• Aprox. OD (inches): 0.753
  
• Copper Weight ( lbs/mft ): 926 lbs
  
• Net Weight  ( lbs/mft ): 998 lbs
• Min Bending Radius: 3 inch
• Max Pull Tension: 2400 lbs
• Allowable Ampacity At 60°C: 240 Amp
• Allowable Ampacity At 75°C: 285 Amp
• Allowable Ampacity At 90°C: 320 Amp
• Southwire Part ( SimPull): 11305099