Product Hierarchy
Product Hierarchy

503PTZ - PTZ, RG-59 #20, #18-1pr, #14-2c, Shielded, CMR, Siamese

PTZ (CCTV + Control + Power) Cable, Riser-CMR, 1-RG59 20 AWG solid bare copper with foam polyolefin, 95% bare copper braid, 1-18 AWG stranded bare copper pair with polyolefin insulation and Beldfoil® shield, 2-14 AWG stranded bare copper conductors with PVC insulation, Siamese with PVC jacket

Product Overview

Suitable Applications: Surveillance, CCTV Camera, PTZ (Pan-Tilt-Zoom)

Physical Characteristics (Overall)

ElementAWGStrandingMaterialNominal DiameterNo. of ConductorsNo. of Coax
Coax(es)20SolidBC - Bare Copper0.032 in1
Pair11819x30BC - Bare Copper0.044 in2
Pair21419x27BC - Bare Copper0.07 in2
Conductor Count: 5
ElementMaterialNominal DiameterNominal Wall Thickness
Coax(es)PE - Polyethylene (Foam)0.145 in
Pair1PP - Polypropylene0.018 in
Pair2PVC - Polyvinyl Chloride0.014 in
Table Notes: Gas Injected
Color Chart
Coax CoreWhite
Pair1Blue & White/Blue
Pair2Black & White
Color Chart 4
Coax JacketBlack
Pair1 JacketBlue
Pair2 JacketWhite
Inner Shield Material
ElementTypeMaterialMaterial Trade NameCoverage [%]
Coax(es)BraidBare Copper (BC)95%
Pair1TapeBi-Laminate (Alum+Poly)Beldfoil®100%
Pair2No Shield
Inner Jacket Material
MaterialNominal DiameterNominal Wall Thickness
PVC - Polyvinyl Chloride0.227 in0.030 in
PVC - Polyvinyl Chloride0.219 in0.028 in
PVC - Polyvinyl Chloride0.236 in0.020 in
Outer Shield Material
Drainwire Construction n x D
Outer Jacket Material
MaterialNominal Diameter
Banana Peel (No Overall Jacket)0.496 in
0.219 in
0.236 in
0.496 in

Electrical Characteristics

Conductor DCR
ElementNominal Conductor DCRNominal Conductor DCR Conductor ResistanceNominal Inner Shield DCR
Coax(es)10 Ohm/1000ft10 Ohm/1000ft3.5 Ohm/1000ft
Pair16.5 Ohm/1000ft6.5 Ohm/1000ft
Pair22.5 Ohm/1000ft2.52 Ohm/1000ft
ElementNom. Capacitance Conductor to ConductorNom. Capacitance Conductor to Shield
Coax16.3 pF/ft
Pair126 pF/ft44 pF/ft
Pair221.5 pF/ft
ElementNominal Characteristic Impedance
Coax75 Ohm
High Frequency (Nominal/Typical)
Frequency [MHz]Nom. Insertion Loss
1 MHz0.3 dB/100ft
5 MHz0.65 dB/100ft
10 MHz0.9 dB/100ft
50 MHz1.9 dB/100ft
100 MHz2.6 dB/100ft
200 MHz3.6 dB/100ft
400 MHz5 dB/100ft
700 MHz7 dB/100ft
900 MHz8 dB/100ft
1000 MHz8.5 dB/100ft
ElementMax. Delay SkewNominal DelayNominal Velocity of Propagation (VP) [%]
Coax83 ns/100m1.22 ns/ft83%
ElementMax. Recommended Current [A]
Pair15.2 Amps per Conductor at 25ºC
Pair25 Amps per Conductor at 25ºC
UL Voltage Rating
300 V RMS

Temperature Range

Installation Temp Range: 0°C To +75°C
UL Temp Rating: 75°C
Operating Temp Range: -10°C To +75°C
Separation Temp Range: 0°C To +75°C

Mechanical Characteristics

Bulk Cable Weight: 97 lbs/1000ft
Max. Pull Tension: 190 lbs


NEC Articles: Article 800
NEC/(UL) Compliance: CM
CEC/C(UL) Compliance: CM
RG Type: 59/U Type
Other Compliance: Video coax: RG 59/U

Applicable Environmental and Other Programs

Environmental Space: Indoor - Riser
EU Directive 2000/53/EC (ELV): Yes
EU Directive 2003/11/EC (BFR): Yes
EU Directive 2011/65/EU (ROHS II): Yes
EU Directive 2012/19/EU (WEEE): Yes
EU Directive 2015/863/EU: Yes
EU Directive Compliance: Yes
EU CE Mark: Yes
EU RoHS Compliance Date (yyyy-mm-dd): 2006-08-22
MII Order #39 (China RoHS): Yes


Suitability - Indoor: Yes

Flammability, LS0H, Toxicity Testing

UL Flammability: UL1685 UL Loading
UL voltage rating: 300 V RMS


Plenum (Y/N): No

Part Number

Item #ColorUPC
503PTZ 0001000Black, Blue, White612825155997
Footnote: C - CRATE REEL PUT-UP.
Patent: This product has one or more applicable patents. More information on patents can be found at

Product Notes

Notes: RG59 CCTV + 1 STP 18 AWG Control Grade + 2C 14 AWG CM. Individually jacketed and color coded components, cabled around and each fused to a central binding spline. Cold environment installation: When installing cables that have been stored at ambient temperatures of 32 degrees Fahrenheit (0 degrees Centigrade) or lower, Belden recommends conditioning of the cable for 12 hours at room temperature prior to individual cable leg separation.


Update and Revision: Revision Number: 0.306 Revision Date: 09-30-2020
Date: 2006-08-22
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