Part # Type  Shielding  Voltage  AWG  # of Elements  Jacket Material  Jacket Diameter  Applicable Specifications 
M4677 Conductor  FOIL  300  20  50  PVC  0.685  CA Prop 65, CE, CSA CMG, CSA FT4, UL AWM 2464, UL CMG 
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 Diameters (In)
1) Component 1 50 X 1 COND 
a) Conductor 20 (7/28) AWG TC 0.038
b) Insulation 0.016" Wall, Nom. PVC 0.070
(1) Color Code Alpha Wire Color Code D
Cond Color Cond Color Cond Color
1 BLACK 18 WHITE/GREEN35 WHITE/RED/RED
2 RED 19 WHITE/YELLOW36 WHITE/RED/GREEN
3 WHITE 20 WHITE/BLUE37 WHITE/RED/BLUE
4 GREEN 21 WHITE/BROWN38 WHITE/RED/BROWN
5 ORANGE 22 WHITE/ORANGE39 WHITE/RED/VIOLET
6 BLUE 23 WHITE/SLATE40 WHITE/GREEN/BLACK
7 BROWN 24 WHITE/VIOLET41 WHITE/GREEN/RED
8 YELLOW 25 WHITE/BLACK/RED42 WHITE/GREEN/GREEN
9 VIOLET 26 WHITE/BLACK/GREEN43 WHITE/GREEN/BLUE
10 SLATE 27 WHITE/BLACK/YELLOW44 WHITE/GREEN/BROWN
11 PINK 28 WHITE/BLACK/BLUE45 WHITE/GREEN/VIOLET
12 TAN 29 WHITE/BLACK/BROWN46 WHITE/BLUE/BLACK
13 RED/GREEN 30 WHITE/BLACK/ORANGE47 WHITE/BLUE/RED
14 RED/YELLOW 31 WHITE/BLACK/SLATE48 WHITE/BLUE/GREEN
15 RED/BLACK 32 WHITE/BLACK/VIOLET49 WHITE/BLUE/BLUE
16 WHITE/BLACK 33 WHITE/BLACK/BLACK50 WHITE/BLUE/BROWN
17 WHITE/RED 34 WHITE/RED/BLACK 
2) Cable Assembly 50 Components Cabled 
a) Twists: 1.4 Twists/foot (min) 
b) Core Wrap Clear Mylar Tape, 25% Overlap, Min. 
3) Shield: Alum/Mylar Tape, 25% Overlap, Min. 
a) Foil Direction Foil Facing In 
b) Drain Wire 20 (7/28) AWG TC 
4) Jacket 0.053" Wall, Nom.,PVC0.685 (0.714 Max.)
a) Color(s) SLATE
b) Ripcord 1 End 810 Denier Nylon 
c) Print ALPHA WIRE-* P/N M4677 50C 20 AWG
EXXXXXX SHIELDED 75C CMG (UL) C(UL) OR
AWM 2464 CE ROHS
* = Factory Code
[Note: Product may have c(UL) or CSA markings depending upon plant of manufacture.]
1) UL AWM/STYLE 2464 80°C / 300 VRMS
 CMG 75°C
2) CSA International FT4 
 C(UL) TYPE CMG 75°C
3) CE:EU Low Voltage Directive 2006/95/EC
1) CE: EU Directive 2011/65/EU(RoHS2), EU Directive 2015/863/EU (RoHS3):
 This product complies with European Directive 2011/65/EU (RoHS Directive) of the European Parliament and of the Council of 8 June 2011 and the amending Directive 2015/863/EU of 4 June 2015 . No Exemptions are required for RoHS Compliance on this item.
2) REACH Regulation (EC 1907/2006):
 This product does not contain Substances of Very High Concern (SVHC) listed on the European Union's REACH candidate list in excess of 0.1% mass of the item.
3) California Proposition 65:Exempt from warning labels based on the Consent Judgment. Please see Alpha's CA Prop 65 Statement for more information.
Physical & Mechanical Properties
1) Temperature Range-20 to 80°C
2) Bend Radius 10X Cable Diameter
3) Pull Tension 446 Lbs, Maximum
Electrical Properties(For Engineering purposes only)
1) Voltage Rating 300 VRMS
2) Capacitance 44 pf/ft @1 kHz, Nominal Conductor to Conductor
3) Ground Capacitance79 pf/ft @1 kHz, Nominal
4) Inductance0.19 µH/ft, Nominal
5) Conductor DCR10.3 Ω/1000ft @20°C, Nominal
6) OA Shield DCR6.4 Ω/1000ft @20°C, Nominal
PackagingFlange x Traverse x Barrel (inches)
a) 1000 FT 36 x 14 x 12 Continuous length
b) 500 FT 24 x 14 x 12 Continuous length
c) 100 FT 16 x 11 x 8 Continuous length
d) Bulk(Made-to-order) 
 [Spool dimensions may vary slightly]

Communication and Control Cable:

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Our line-up of standard communication and control cables gives you maximum choice and fewer tradeoffs. By offering you a comprehensive collection of insulation/jacketing materials, shielding options, and conductor counts, you can easily select the cable that meets your most demanding needs. We have cables that go beyond the ordinary to satisfy rigorous requirements of EMI performance, transmission distances, flexibility, and temperature extremes.

Communication and Control Typical applications:

  • Audio systems: speakers, microphones, intercoms

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  • Control systems

  • Instrumentation systems

  • Point-of-sale systems

  • Banking systems

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