Belden MRG1781 Series, 100 m, RG178 Coaxial Coaxial Cable 50 Ω, Black, Unterminated
- RS stock no.:
- 521-7944
- Manufacturer:
- Belden
Bulk discount available
View bulk pricing optionsSubtotal (1 reel of 100 metres)*
R 4 978,83
(exc. VAT)
R 5 725,65
(inc. VAT)
FREE delivery for orders over R 1,500.00
In Stock
- 34 unit(s) ready to ship from another location
- Plus 6 unit(s) shipping from 28 August 2026
- Plus 6 unit(s) shipping from 11 September 2026
Need more? Click ‘Check delivery dates’ to find extra stock and lead times.
Reel(s) | Per Reel | Per Metre* |
|---|---|---|
| 1 - 5 | R 4,978.83 | R 49.788 |
| 6 + | R 4,854.36 | R 48.544 |
*price indicative
- RS stock no.:
- 521-7944
- Manufacturer:
- Belden
Specification
Technical data sheets
Legislation and Compliance
Product Details
Find similar products by selecting one or more attributes.
Select all | Attribute | Value |
|---|---|---|
| Brand | Belden | |
| Terminated/Unterminated | Unterminated | |
| Product Type | Coaxial Cable | |
| Coaxial Type | RG178 | |
| American Wire Gauge | 30AWG | |
| Voltage | 1kV dc | |
| Outside Diameter | 1.8mm | |
| Characteristic Impedance | 50Ω | |
| Minimum Operating Temperature | -25°C | |
| Conductor Type | Stranded | |
| Attenuation | 19 dB | |
| Maximum Operating Temperature | 70°C | |
| Cable Length | 100m | |
| Standards/Approvals | Euroclass Eca | |
| Jacket Colour | Black | |
| Fire Behaviour | IEC 60332-1-2 (Low Smoke Zero Halogen) | |
| Size of Strands | 0.1mm | |
| Core Strands | 7 x 0.1mm | |
| Number of Strands | 7 | |
| Series | MRG1781 | |
| Jacket Material | Polyethylene | |
| Conductor Material | Silver Plated Copper Clad Steel | |
| Select all | ||
|---|---|---|
Brand Belden | ||
Terminated/Unterminated Unterminated | ||
Product Type Coaxial Cable | ||
Coaxial Type RG178 | ||
American Wire Gauge 30AWG | ||
Voltage 1kV dc | ||
Outside Diameter 1.8mm | ||
Characteristic Impedance 50Ω | ||
Minimum Operating Temperature -25°C | ||
Conductor Type Stranded | ||
Attenuation 19 dB | ||
Maximum Operating Temperature 70°C | ||
Cable Length 100m | ||
Standards/Approvals Euroclass Eca | ||
Jacket Colour Black | ||
Fire Behaviour IEC 60332-1-2 (Low Smoke Zero Halogen) | ||
Size of Strands 0.1mm | ||
Core Strands 7 x 0.1mm | ||
Number of Strands 7 | ||
Series MRG1781 | ||
Jacket Material Polyethylene | ||
Conductor Material Silver Plated Copper Clad Steel | ||
- COO (Country of Origin):
- NL
Belden MRG1781 Series Coaxial Cable, 100m Length, 50 Ω Characteristic Impedance - MRG1781.00100
This coaxial cable is a specialised RG178 type designed for effective performance in various indoor applications. With a length of 100m and an outer diameter of 1.8mm, this cable features a black PVC sheath that ensures durability and operational efficiency. It is an unterminated cable, utilising a stranded silver-plated copper-clad steel conductor to deliver optimal signal transmission.
Features & Benefits
• Utilises a 50 Ω characteristic impedance for stable performance
• Low attenuation of 19 dB/100m at 10 MHz facilitates high-quality signal transfer
• Enhanced conductor design using silver-plated copper for improved conductivity
• PVC outer jacket offers protection and longevity in various environments
• Suitable for operating temperatures between -25 °C and +70 °C
• Euroclass Eca certification confirms compliance with safety standards
Applications
• Ideal for coaxial communication systems
• Used for RF where low signal loss is vital
• Perfect for high-performance telecommunications installations
• Employed in automation systems requiring reliable signal integrity
• Suitable for installation in controlled indoor environments
What type of insulation material is used in the cable?
The cable features polyethylene (PE) insulation, ensuring effective dielectric properties for improved signal quality.
How does the cable perform in high-frequency settings?
At high frequencies like 200 MHz, the cable demonstrates a typical insertion loss of 63 dB/100m, maintaining signal integrity for critical applications.
What is the rated voltage for this coaxial cable?
The cable is rated for a voltage of 1000V DC and 600V RMS, making it suitable for various electrical systems in commercial and industrial settings.
What is the significance of the cable's Euroclass Eca certification?
The Euroclass Eca certification indicates compliance with European fire safety standards, ensuring the cable is suitable for installation in public and commercial spaces.
How does the temperature range affect the cable's performance?
With an operating temperature range from -25 °C to +70 °C, the cable remains functional and reliable in diverse environmental conditions, ensuring consistent performance.
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