Quick Specs
| Category | Security & Control Cable, Shielded, 18AWG, 1 Pair |
| Conductor | 18AWG Tinned Copper Wire |
| Shield | Aluminum Foil, 100% coverage, drain wire |
| Jacket | PVC, Gray |
| Standards | ISO 9001:2008 |
| Certifications | ISO 9001RoHS |
| Packaging | 305m / Box |
Heizka’s 18AWG Shielded Cable (1 Pair) is an aluminum-foil-shielded security and control cable built around a tinned copper conductor, engineered to carry low-voltage power and control signals reliably in noise-sensitive indoor installations. The tinned copper conductor resists oxidation over time for stable long-term contact resistance, while the 100%-coverage aluminum foil shield with drain wire protects the signal path from electromagnetic interference picked up along conduit and cable tray runs.
As the most compact gauge in Heizka’s shielded security and control cable series, it is the right choice for space-constrained conduit runs and shorter cable pulls to access control panels, intercom systems, audio distribution, door controllers, proximity readers, keypads, and smoke detector wiring in commercial and residential buildings. It ships with a durable gray PVC jacket printed with sequential length markings to reduce installation waste. Every reel is manufactured and tested to an ISO 9001:2008 quality system, is RoHS compliant, and is backed by Heizka’s multi-year warranty for long-term field performance.
Features
- ✓Tinned copper conductor resists oxidation for stable long-term conductivity
- ✓100%-coverage aluminum foil shield with drain wire for reliable EMI/noise protection
- ✓HDPE insulation for stable electrical performance
- ✓Durable gray PVC jacket for indoor routing
- ✓Sequential length markings printed on jacket to reduce installation waste
- ✓18AWG conductor size, 1 Pair (2-conductor) twisted construction for compact conduit fill
- ✓Rated voltage 300V
- ✓Designed in the USA
- ✓Packaging: 305m/Box
Standard Compliance
- ISO 9001:2008
- RoHS Compliant
Ordering Information
| Item # | Description |
|---|---|
| HEW18S2PC | 18AWG Shielded Cable, 1 Pair, Gray, AL-Shield, Twisted, PVC, 305m/Box |
Technical Specifications
Conductor
| Material | Tinned copper wire |
| Construction | 18AWG |
| Maximum conductor resistance (20°C) | 21.8 Ω/Km |
| Capacitance | 98 ± 3 pF/m |
| Capacitance (Conductors + Shield) | 141 ± 3 pF/m |
Insulation & Shield
| Insulation material | HDPE |
| Insulation test voltage AC | 1000V |
| Shield material | Aluminum Foil |
| Shield coverage rate | 100% |
Jacket
| Jacket material | PVC (Gray) |
| Average thickness | 0.6mm |
| Overall cable diameter | 5.5 ± 0.3mm |
| Rated voltage | 300V |
14AWG vs 16AWG vs 18AWG Shielded Cable — Which One Do You Need?
| Feature | 14AWG | 16AWG | 18AWG, 1 Pair (this cable) |
|---|---|---|---|
| Item # | HEW14S2PC | HEW16S2PC | HEW18S2PC |
| Max. conductor resistance (20°C) | 8.2 Ω/Km | 13.7 Ω/Km | 21.8 Ω/Km |
| Capacitance | 97 ± 3 pF/m | 190 ± 3 pF/m | 98 ± 3 pF/m |
| Capacitance (Cond. + Shield) | 174 ± 3 pF/m | 342 ± 3 pF/m | 141 ± 3 pF/m |
| Overall jacket diameter | 9.8 ± 0.3mm | 6.5 ± 0.3mm | 5.5 ± 0.3mm |
| Best for | Higher-current control/power runs, longer cable pulls | Standard security and control wiring | Compact, space-constrained conduit runs |
Frequently Asked Questions
What is the Heizka 18AWG Shielded Cable used for?
It is designed for indoor security and control applications, including remote control of security systems, intercom systems, sound/audio systems, door controllers, proximity sensors, key pads, access control, and smoke detectors, particularly where conduit space is tight.
Why is this cable shielded, and how should the shield be handled?
The 100%-coverage aluminum foil shield with drain wire protects the signal and control circuit from electromagnetic interference. The drain wire should be bonded and grounded at one consistent point — typically the panel end — to avoid ground loops while keeping the shield effective.
What’s the difference between the 14AWG, 16AWG, and 18AWG versions, and which should I choose?
All three share the same tinned-copper conductor, aluminum-foil-shielded, PVC-jacketed construction and differ mainly in conductor gauge. The 14AWG version has the lowest conductor resistance and suits higher-current or longer control/power runs; the 16AWG is a standard mid-size choice; the 18AWG is the most compact option for tight conduit fill on shorter runs.
Is a 2 Pair version of this 18AWG cable available?
Yes. This SKU (HEW18S2PC) is the single twisted-pair (1 Pair, 2-conductor) version. For installations that need two independent signal pairs in one jacket — such as combined power-and-signal or dual-zone wiring — choose Heizka’s 18AWG Shielded Cable 2 Pair variant instead.
Why use a tinned copper conductor instead of bare copper?
Tinning the copper conductor with a thin layer of solder resists oxidation and corrosion over the cable’s service life, helping maintain stable low-resistance connections at terminals in security and control panels.
How is the cable packaged, and what voltage is it rated for?
The cable is rated for 300V and ships in standard 305m boxes with sequential length markings printed on the gray PVC jacket, making it easy to track exact usage during installation.
Every reel of Heizka 18AWG Shielded Cable 1 Pair ships in a standard 305m pull-box with sequential length markings printed along the gray PVC jacket, ready to route directly into security panels, intercom systems, and access control installations without unnecessary splicing.
Heizka Cable — Designed in the USA, distributed in 20+ countries worldwide.
