50ft UL-Certified 18AWG DC Extension Cable (2.1mm x 5.5mm) - Heavy Duty, Black | HDCX50
Heavy-Duty 50ft DC Power Extension Cable — 18 AWG UL2464 | 2.1mm x 5.5mm
Part: HDCX50T
When your power source and device are far apart, the 50ft 18 AWG DC extension cable bridges the gap without sacrificing power quality. Built with an 18 AWG pure copper core and UL 2464-certified flame-retardant jacketing, this cable is engineered specifically for long-run DC power applications where voltage drop is a critical concern — CCTV perimeter installations, large LED signage arrays, outdoor lighting systems, and commercial AV setups.
Technical Specifications
- Connector Type: 2.1mm (ID) x 5.5mm (OD) — center positive compatible
- Wire Gauge: 18 AWG — essential for maintaining voltage stability over 50 feet
- Cable Length: 50 feet (15.24 meters)
- Connectors: 1x Female Jack (input) + 1x Male Plug (output), molded strain relief
- Jacket: UL 2464 component rated — flame retardant, industrial grade
- Color: Black
- Conductor: Pure copper (not CCA)
Common Use Cases & Compatible Devices
- CCTV and IP security cameras in large perimeter installations
- Outdoor LED lighting and large LED signage arrays
- Commercial and warehouse display lighting
- Long-run networking equipment power extensions
- Industrial sensors and control systems requiring remote power
- Marine, RV, and off-grid DC power distribution
- Any 2.1mm x 5.5mm DC device located far from its power supply
Why 18 AWG Is Critical at 50 Feet
Voltage drop is proportional to cable length and inversely proportional to wire gauge. At 50 feet, a 22AWG or 24AWG cable can cause significant voltage drop — enough to cause CCTV cameras to reboot, LED strips to dim unevenly, or sensitive electronics to malfunction. The 18 AWG construction of this cable minimizes resistance over the full 50-foot run, maintaining stable voltage delivery to your device.
Frequently Asked Questions
Q: What is the maximum current this cable supports at 50 feet?
A: At 50 feet, 18 AWG copper supports approximately 2–3A with acceptable voltage drop for most 12V applications. For higher-current loads, consider running a higher-voltage supply or using multiple shorter runs.
Q: Is this suitable for outdoor CCTV camera installations?
A: Yes. The UL 2464 jacket is flame-retardant and durable for indoor and protected outdoor runs. For fully exposed outdoor installations, additional weatherproofing at connection points is recommended.
Q: Will this work with my 12V or 24V power supply?
A: Yes. Compatible with any DC power supply using a 2.1mm x 5.5mm barrel connector, regardless of voltage (within the cable's rated current limits).
Q: Is a white version available?
A: Yes — see our 50ft 18AWG White DC Extension Cable for installations where a white cable is preferred.
Q: Is this available for bulk or OEM orders?
A: Yes — we maintain high inventory for OEM and commercial projects. Contact us for volume pricing.
