Belden 5140U1 010 is a security & sound cable with 1 pair 14 AWG stranded tinned copper conductors, PVC insulation, and a PVC jacket. It includes Waterblock Tape for wet location and below-grade duct installations. Rated-CL3-FPL-PLTC and UL listed for 300 V (CL3, FPL, PLTC-ER), it is specified for low-voltage system wiring needs including security, intercom/PA, audio/speaker, and Fire Alarm (Red Jkt) applications. Environmental suitability is listed as indoor/outdoor, sunlight resistance, and burial.
Key Features
- Security & sound cable construction with 1 pair 14 AWG conductors for low-voltage system wiring.
- Stranded tinned copper conductors (19x26) with PVC insulation and a PVC outer jacket.
- Waterblock Tape for added protection in wet location and below-grade duct installations.
- Rated-CL3-FPL-PLTC and UL listed for 300 V (CL3, FPL, PLTC-ER).
- Environmental suitability listed as indoor/outdoor, sunlight resistance, and burial.
Technical Specs
Construction & Materials
| Cable type | Security & Sound Cable |
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| Number of elements | 1 pair |
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| Conductor size | 14 AWG |
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| Conductor stranding | 19x26 |
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| Conductor material | TC - Tinned Copper |
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| Insulation material | PVC - Polyvinyl Chloride |
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| Insulation nominal thickness | 0.022 in (0.56 mm) |
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| Insulation nominal diameter | 0.120 in (3.05 mm) |
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| Insulation color code | Black & Red |
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| Waterblocking | Waterblock Tape |
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| Outer jacket material | PVC - Polyvinyl Chloride |
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| Outer jacket nominal thickness | 0.042 in (1.1 mm) |
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| Outer jacket nominal diameter | 0.356 in (9.04 mm) |
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| Overall cable diameter (nominal) | 0.356 in (9.04 mm) |
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| Shield | No |
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Performance & Electrical Characteristics
| Nom. conductor DCR | 3.05 Ohm/1000ft (10.0 Ohm/km) |
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| Nom. capacitance cond-to-cond | 31 pF/ft (100 pF/m) |
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Environmental & Mechanical Ratings
| UL temperature | 90°C |
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| Operating temperature | -20°C to +90°C |
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| Bend radius (stationary min.) | 3.6 in (91 mm) |
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| Bend radius (installation min.) | 3.6 in (91 mm) |
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| Max. pull tension | 95 lbs (43 kg) |
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| Bulk cable weight | 59 lbs/1000ft (88 kg/km) |
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Compliance & Certifications
| NEC / UL compliance | Article 725, Article 760, Article 800 |
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| CEC / C(UL) compliance | CL3 |
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| CPR compliance | CPR Euroclass: Eca |
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| Flammability / reaction to fire | UL 1685 FT4 Loading, FT4, IEEE 1202, IEC 60332-1-2 |
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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 | Product Lens™, Environmental Product Declaration (EPD) Available |
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Applications
- Supports security system wiring where a listed low-voltage cable is required.
- Works for intercom/PA connections in building communication systems.
- Handles audio/speaker runs in distributed audio installations.
- Meets Fire Alarm (Red Jkt) circuit needs where the listed ratings apply.
- Fits power-limited controls installations covered by the listed compliance references.
- Serves wet location installations when waterblocking protection is needed.
- Enables below-grade duct routing where added moisture protection is beneficial.
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