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The BCLS-31 (1000') by Kramer is a high-performance Cat 6A U/UTP cable for IT, LAN, and Ethernet installations. Its design exceeds Cat 6A specifications and provides a larger bandwidth than the basic standard cable (sweep frequency up to 650 MHz).
The cable is constructed with four pairs of 23-gauge solid bare-copper conductors. The low-smoke, zero-halogen jacket emits limited smoke and no halogen when exposed to high sources of heat, protecting people and equipment from toxic and corrosive gas. The jacket is round & smooth without twisted stripe, and its zigzag design provides excellent performance of six-around-one bundle transmission.
Other features include an internal rip cord to prevent damage to the individual conductors when stripping off the jacket, a cross filler to reduce crosstalk, sequential markings every meter, and a fumigated plywood reel.
4 pairs of 23 AWG solid bare-copper conductors
Exceeds Cat 6A specifications for wider bandwidth
Low-smoke zero-halogen jacket for safety
Zigzag jacket design for improved performance of six-around-one bundle transmission
Round and smooth jacket without twisted stripe
Sweep frequency up to 650 MHz
Internal rip cord for additional protection
Cross filler for reduced crosstalk
Sequential markings every meter
Fumigated plywood reel
Applications include structure cabling for horizontal and building backbone cable, IT, LAN and Ethernet installations, IEEE 802.3an 10GBASE-T and legacy speeds, CDDI/ATM/Token Ring, and IEEE 802.3af (PoE) / IEEE 802.3at (PoE+)
Conductor: 4 pairs of 23 AWG solid bare copper
Insulation: Polyolefin (PO) – blue & white / blue stripe, orange & white / orange stripe, green & white / green stripe, brown & white / brown stripe
Assembly: Left-hand direction
Rip Cord: Polyester multi-yarn
Filler: Polyolefin (PO)
Jacket: Low-smoke zero halogen (LSZH), yellow (Pantone 116C)
Jacket: 0.32 ±0.007" (8.3 ±0.2 mm)
Jacket Thickness: 0.043 ±0.0003" (1.10 ±0.01 mm)
Insulation Blue & White / Blue Stripe: 0.046 ± 0.007" (1.17 ±0.02 mm)
Insulation Orange & White / Orange Stripe: 0.044 ± 0.007" (1.12 ±0.02 mm)
Insulation Green & White / Green Stripe: 0.045 ± 0.007" (1.15 ±0.02 mm)
Insulation Brown & White / Brown Stripe: 0.043 ± 0.007" (1.10 ±0.02 mm)
Temperature and Voltage Rating: 60°C @ 300 V
Spark Test: 2.5 kVDC
AC Leakage Current: ≤ 10 mA /1.5 kVAC, through overall jacket
Coupling Attenuation: ≤ 55 dB @ 30 MHz, ≤ 41 dB @ 250 MHz
Conductor DC Resistance: ≤ 9.38 Ohms / 100 m
Resistance Unbalance: ≤ 5%
Dielectric Strength: 1.5 kVAC for 2 sec
Insulation Resistance: ≥ 5000 MOhms/m
Mutual Capacitance: ≤ 5.6 nF / 100 m
Capacitance Unbalance: ≤ 330 pF / 100 m, pair-to-ground
Characteristic Impedance: 100 ±15 Ohms @ 1-100 MHz
ANSI/TIA-568-C.2 (2009): Balanced twisted-pair telecommunications cabling and components standards
ISO/IEC 11801 (Edition 2.2): Information technology, generic cabling for customer premises
IEC 61156-5 (Edition 2.0): Multicore and symmetrical pair/quad cables for digital communications (part 5: symmetrical pair/quad cables with transmission characteristics up to 1000 MHz), horizontal floor wiring, sectional specification
EN 50288-3-1:2013: Multi-element metallic cables used in analog and digital communication and control, (part 6-1: sectional specification for unscreened cables characterized up to 250 MHz, horizontal and building backbone cables
EN 50173-1:2011: Information technology, generic cabling systems (part 1: general requirements)
IEC 60332-1-2: Tests on electric and optical fiber cables under fire conditions, (part 1-2: test for vertical flame propagation for a single insulated wire or cable), procedure for 1 kW pre-mixed flame
IEC 61034-1 / 61034-2: Measurement of smoke density of cables burning under defined conditions
IEC 60754-2: Test on gases evolved during combustion of materials from cables
Usage & Environmental
Cable Cold Bend: -4°F (-20°C) for 4 hours
Insulation Tensile Strength: 2400 PSI min. (1.69 kg/m²)
Temperature Range / Storage & Shipping: -4° to 140°F (-20° to 60°C)
Temperature Range / Installation: 32° to 140°F (0° to 60°C)
Temperature Range / Operation: -4° to 140°F (-20° to 60°C)
Minimum Bending Radius: 4 x the overall diameter
Maximum Pulling Tension: 110 N