Ubiquiti UACC-CABLE-DOORLOCKRELAY-2P 500ft 2-Pair Relay Cable Spool
Overview
The UACC-CABLE-DOORLOCKRELAY-2P is a 500-foot (152.4 m) bulk spool of low-voltage relay cable purpose-built for Ubiquiti Access Hub 2 access control installations. The 2-pair configuration eliminates the need to run separate cable runs for lock control and door position feedback — both functions travel in a single conduit, which cuts installation labor and material cost in extended-distance deployments common across warehouses, data centers, and multi-door commercial facilities.
Key Features
- 2-Pair Conductor Layout: Two 18 AWG conductors dedicated to electric or magnetic lock relay control, plus two 22 AWG conductors for door position sensor feedback. Running both on one spool reduces trenching, conduit, and termination work — meaningful savings on facilities with long cable runs or multiple door zones.
- 500-Foot Bulk Spool: Eliminates connector waste and supports extended run distances typical in commercial access control. Bulk format means you buy only what you need and terminate on-site, avoiding the cost and complexity of pre-assembled pigtails for non-standard distances.
- 18 AWG Lock Control Pair: Gauge matches the power requirements for standard 12VDC electric locks and magnetic lock solenoids. Wire cross-section is sized to minimize voltage drop over longer runs — critical when door control reliability depends on consistent solenoid pull-in current.
- 22 AWG Sensor Feedback Pair: Smaller gauge is sufficient for dry-contact door position sensors (magnetic reed switches, push-to-open buttons, or limit switches). Reduces overall cable diameter and weight compared to a homogeneous 4-conductor 18 AWG spool, making installation through existing conduit easier in retrofit scenarios.
- Access Hub 2 Integration: Compatible with Ubiquiti Access Hub 2 relay output and sensor input terminals. Pairs directly with standard electric strike locks, electromagnetic locks (mag locks), and door position sensor assemblies without intermediate adapters or signal conditioning.
- Commercial-Grade Insulation: Low-voltage cabling rated for indoor and controlled indoor/outdoor environments typical of commercial facilities. Not rated for direct burial or continuous outdoor exposure — keep runs in conduit or covered cable trays where moisture or UV exposure is a concern.
Integration & Compatibility
The UACC-CABLE-DOORLOCKRELAY-2P is designed for Access Hub 2 deployments where relay-driven door locks and sensor feedback need to coexist on a single cable run. It supports integration with standard commercial electric locks, magnetic locks, and door position sensors. A single-pair variant (18 AWG only) is available for lock-only installations if sensor feedback is not required. Pair this cable with access control planning guidance to ensure conduit sizing, voltage drop calculations, and sensor/relay wiring practices are correct for your specific run lengths and lock amperage.
Installation Notes
As a bulk spool, termination occurs at both ends during installation — you are responsible for proper strain relief, weatherproofing (if run exposed), and labeling at both cabinet and door terminals. In long runs exceeding 300 feet, verify voltage drop across the 18 AWG lock control pair using lock solenoid resistance and expected cable current; Access Hub 2 datasheet specifies input voltage tolerance at the lock relay terminals. Door sensor feedback (22 AWG) is typically low-current and tolerates longer runs, but verify dry-contact switch contact ratings in your door sensor assembly to avoid false opens due to contact oxidation or poor termination.
Frequently Asked Questions
Q: Can I use the UACC-CABLE-DOORLOCKRELAY-2P for sensor-only applications?
A: Yes. The 22 AWG sensor pair can be deployed independently for door position feedback on its own run, though you would not use the 18 AWG lock control pair. A single-pair 18 AWG variant is available if you need lock control only and want to avoid purchasing unused conductors.
Q: What is the maximum recommended run length for the lock control pair?
A: Voltage drop depends on your lock solenoid current draw and Access Hub 2 output voltage tolerance. Consult the Access Hub 2 datasheet for maximum voltage drop specification, then calculate using Ohm's law (18 AWG ≈ 6.4 ohms per 1,000 feet). For typical 12VDC 1-amp lock solenoids, 300–400 feet is practical without active booster supplies.
Q: Is the cable rated for outdoor or direct burial?
A: No. This is a low-voltage indoor/commercial cable. Deploy it in conduit or cable trays for protection from moisture, UV, and physical damage. For outdoor door control (e.g., exterior roll-up gates), use UV-rated, direct-burial-rated cable and consult local electrical code.
Q: Can I mix the UACC-CABLE-DOORLOCKRELAY-2P with other Ubiquiti cable products in the same conduit?
A: Check local electrical code and your cable management plan. Mixing low-voltage relay cable (12VDC) with higher-voltage or data cable is generally acceptable, but keep physical separation where possible and avoid bundling in ways that create heat buildup or mechanical stress.
Q: What gauge is the lock control pair, and does it support multiple locks on one run?
A: Lock control is 18 AWG. Multiple locks can share the same run only if wired in parallel and the total current draw does not exceed the 18 AWG cross-section safe amperage (~10 amps at 60°C ambient) — verify your lock solenoid specs and Access Hub 2 relay output rating before paralleling loads.
Ted PerryPerspective based on aggregated IP Security Depot and affiliated engineering team experience.
The UACC-CABLE-DOORLOCKRELAY-2P is a straightforward solution for reducing installation labor in Access Hub 2 deployments where you're combining lock control and door sensor feedback. The 2-pair layout — 18 AWG for the solenoid, 22 AWG for the sensor — eliminates a second cable run and cuts material and conduit cost, especially on larger facilities with multiple doors spread across longer distances.
Technical Highlights:
- Dual-Pair Efficiency: Combines 18 AWG lock control and 22 AWG sensor feedback in one 500-foot spool. Cuts conduit and termination labor on multi-door deployments; a single run replaces two separate runs to the same door zone.
- 500-Foot Bulk Format: Eliminates connector waste and supports extended run distances common in warehouses and data centers. Terminate on-site to match your exact run length instead of buying overpriced pre-assembled pigtails.
- Voltage Drop Considerations: 18 AWG at 500 feet introduces roughly 3.2 ohms DC resistance per pair. On a typical 1-amp 12VDC lock solenoid, expect about 3.2 volts of drop by the time current reaches the far end — verify your Access Hub 2 relay output tolerance and lock solenoid min voltage before committing to maximum-distance runs.
Deployment Considerations:
- Conduit Protection is Mandatory: This is indoor/commercial-grade cable — no UV armor, no direct-burial rating. Any exposure to moisture, sunlight, or physical abrasion will degrade insulation over time. If you're running exterior door control (e.g., loading dock, exterior roll-up gate), budget for UV-rated, direct-burial cable instead.
- Watch Voltage Drop on Long Runs: If you're near the 500-foot limit and driving a high-amperage solenoid (2+ amps), calculate voltage drop first. A booster relay at the midpoint or closer-gauge 16 AWG wire may be necessary. Access Hub 2 datasheet specifies minimum input voltage at the lock relay terminal — stay above that margin.
This cable pays for itself on any Access Hub 2 deployment with 3+ doors and runs longer than 100 feet. On smaller installations or single-door retrofits, a pre-assembled pigtail may be simpler. For warehouse automation or multi-zone commercial facilities, the bulk spool and dual-pair design make this the right choice.
