Belden 9451 N3UU is a 1 pair 22 AWG audio and control cable designed for low-voltage signal transmission. It features 22 AWG stranded (7x30) TC - Tinned Copper conductors with PP - Polypropylene insulation and a tape shield with 100% coverage. A PVC - Polyvinyl Chloride jacket with riser rating supports Indoor - Riser installations, and the bonded jacket/shield construction is intended to streamline use with automatic stripping equipment. UL Voltage Rating is 300 V (CMR).
Belden 9451 N3UU Key Features
- 1 pair 22 AWG construction with 22 AWG stranded (7x30) TC - Tinned Copper conductors.
- PP - Polypropylene insulation with Black & Red color code.
- Tape shield with Bi-Laminate (Alum+Poly) material and 100% coverage.
- 22 AWG (7x30) TC drain wire located inside the foil shield.
- PVC - Polyvinyl Chloride jacket with jacket/shield bonding to support removal on automatic stripping equipment.
- Riser rating for Indoor - Riser, Indoor environments.
- UL Voltage Rating: 300 V (CMR).
Belden 9451 N3UU Technical Specs
Physical Dimensions
| Insulation thickness | 0.009 in (0.23 mm) |
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| Insulation diameter | 0.046 in (1.2 mm) |
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| Jacket thickness | 0.020 in (0.51 mm) |
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| Overall diameter | 0.135 in (3.43 mm) |
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| Bulk Cable Weight | 14 lbs/1000ft (21 kg/km) |
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Electrical Characteristics
| Nom. Conductor DCR | 14.1 Ohm/1000ft (46.3 Ohm/km) |
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| Nom Outer Shield DCR | 14.3 Ohm/1000ft (46.9 Ohm/km) |
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| Nom. capacitance Cond-to-Cond | 35 pF/ft (110 pF/m) |
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| Nom. capacitance Cond-to-other (conds + Shield) | 67 pF/ft (220 pF/m) |
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| Nom. characteristic impedence | 45 Ohm |
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| Nom. delay | 1.54 ns/ft |
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| Nom. inductance | 0.17 μH/ft (0.56 μH/m) |
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| Nom. velocity of prop. | 66% |
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| Max. current | 2.9 Amps per Conductor at 25ºC |
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Environmental & Mechanical Ratings
| UL temperature | 60°C |
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| Operating temperature | -20°C to +75°C |
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| Stationary min. Bend Radius | 1.4 in (36 mm) |
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| Installation min. Bend Radius | 1.4 in (36 mm) |
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| Max. pull tension | 27 lbs (12 kg) |
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| Environmental suitability | Indoor - Riser, Indoor |
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Compliance & Certifications
| Flammability / reaction to fire | UL 1666 Riser, IEEE 1202 FT4, IEC 60332-1-2 |
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| NEC / UL compliance | Article 800, CMR |
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| CEC / C(UL) compliance | CMR |
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| CPR compliance | CPR Euroclass: Eca; CPR UKCA Class: Eca |
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| European directive compliance | EU CE Mark, EU Directive 2015/863/EU (RoHS 2 amendment), EU Directive 2011/65/EU (RoHS 2), EU Directive 2012/19/EU (WEEE) |
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| UK regulation compliance | UKCA Mark |
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| APAC compliance | China RoHS II (GB/T 26572-2011) |
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| Sustainability | CA Prop 65 |
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| Plenum number | 9451P |
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Belden 9451 N3UU Applications
- Commonly used with automatic stripping equipment where bonded jacket/shield removal is needed.
- Supports low voltage analog signals (4-20mA, 0-10V, ...) in control and signal wiring.
- Used for low voltage digital control (24V, …) in connected equipment and control systems.
- Applied in line level audio signal runs.
- Suitable for computer communication connections where shielded signal cabling is required.
- Often used for panel wiring in indoor installations.
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