Belden Cable
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Key Features
- Suitable Applications: For RISC Systems where energy efficiency is Key
- Conductor Element: Pair(s)
- Conductor No. of Elements: 3
- Conductor Size: 28 AWG
- Conductor Stranding: 7x36
- Conductor Material: BC - Bare Copper
- Insulation Element: Pair(s)
- Insulation Material: PP - Polypropylene
Belden 1538A 0081000 is an orderable item number in the Belden 1538A family (Cable › Electronic Wire & Cable › Multi-Pair Cable). RISC 6000 IBM N Cable, 28 AWG stranded (7x36) bare copper conductors, patented step polyolefin insulation, twisted pairs, overall Beldfoil® shielded + tinned copper braid shield (65% coverage), tinned copper drain wire, PVC jacket (see RISC color code chart below). This item: Color Gray, UPC 612825117612, Footnote C. Ships from and sold by A5 IT. Quoted to order.
History
| Footnote | C - CRATE REEL PUT-UP. |
| Update And Revision | Revision Number: 0.427 Revision Date: 09-07-2025 |
This Item
| UPC | 612825117612 |
| Color | Gray |
| Footnote | C |
| Item Number | 1538A 0081000 |
Product Notes
| Notes | US Patent # 5,220,130. Single conductors are dually insulated. The outer layer of insulation must be stripped off before attaching modular connectors. |
Product Overview
| Suitable Applications | For RISC Systems where energy efficiency is Key |
Construction Details
| Conductor — Size | 28 AWG |
| Conductor — Element | Pair(s) |
| Conductor — Material | BC - Bare Copper |
| Insulation — Element | Pair(s) |
| Conductor — Stranding | 7x36 |
| Insulation — Material | PP - Polypropylene |
| Insulation — Color Code | White & Blue, White & Orange, White & Green |
| Outer Jacket — Material | PVC - Polyvinyl Chloride |
| Conductor — No. Of Elements | 3 |
| Insulation — Nom. Thickness | 0.01 in (0.25 mm) |
| Outer Jacket — Nom. Diameter | 0.230 in |
| Outer Jacket — Nom. Thickness | 0.02 in (0.51 mm) |
| Outer Shield Row 1 — Coverage | 100% |
| Outer Shield Row 1 — Material | Bi-Laminate (Alum+Poly) |
| Outer Shield Row 2 — Coverage | 65% |
| Outer Shield Row 2 — Material | Tinned Copper (TC) |
| Overall Cable Diameter (Nominal) | 0.230 in |
| Outer Shield Row 1 — Shield Type | Tape |
| Outer Shield Row 2 — Shield Type | Braid |
| Outer Shield Row 1 — Drainwire Type | 28 AWG (7x36) TC |
| Insulation — Nom. Insulation Diameter | 0.035 in (0.89 mm) |
Standards And Compliance
| CPR Compliance | CPR Euroclass: Eca |
| APAC Compliance | China RoHS II (GB/T 26572-2011) |
| NEC / UL Compliance | Article 725, CL2 |
| UK Regulation Compliance | UKCA Mark |
| Environmental Suitability | Indoor, Indoor |
| Other Standard Compliance(s) | IBM Part No. N Cable, RJ-45 compatible |
| European Directive Compliance | EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE) |
| Flammability / Reaction To Fire | UL1685 UL Loading |
Electrical Characteristics
| Nom Outer Shield DCR | 7.88 Ohm/1000ft (25.9 Ohm/km) |
| Electricals — Max. Current | 0.7 Amps per Conductor at 30oC |
| Voltage — UL Voltage Rating | 300 V |
| Electricals — Nom. Conductor DCR | 70.6 Ohm/1000ft |
| Electricals — Nom. Capacitance Cond-to-Cond | 12 pF/ft (39 pF/m) |
| Electricals — Nom. Characteristic Impedence | 120 Ohm |
| High Frequency (Nominal/Typical) Row 1 — Frequency | 1 MHz |
| High Frequency (Nominal/Typical) Row 2 — Frequency | 4 MHz |
| High Frequency (Nominal/Typical) Row 3 — Frequency | 10 MHz |
| Electricals — Nom. Capacitance Cond-to-Other (Conds + Shield) | 21.5 pF/ft (70.5 pF/m) |
| High Frequency (Nominal/Typical) Row 1 — Nom. Insertion Loss (Attenuation) [DB/100m] | 17 |
| High Frequency (Nominal/Typical) Row 2 — Nom. Insertion Loss (Attenuation) [DB/100m] | 26 |
| High Frequency (Nominal/Typical) Row 3 — Nom. Insertion Loss (Attenuation) [DB/100m] | 32 |
Mechanical Characteristics
| Bulk Cable Weight | 22 lbs/1000ft |
| Max. Pull Tension | 33.9 lbs (15.4 kg) |
| Temperature — Operating | -20°C to +60°C |
| Temperature — UL Temperature | 60°C |
| Bend Radius — Stationary Min. | 2.30 in (58.4 mm) |
| Bend Radius — Installation Min. | 2.30 in |
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