Details

National Loop Co. 18' (3' X 6') Direct Burial Vehicle Detection Loop with 75' Lead-In for 9' Wide Driveways - K-NL09-14-75

Made for new paving projects, the National Loop Co. 18' Direct Burial Vehicle Detection Loop with 75' Lead-In is a factory-wound 14 AWG loop that installs flat on the graded sub-base. Once a loop detector reads its signal, the loop covers the non-contact vehicle detection that UL 325 requires as one of the two means of entrapment protection for automated gates. Because it ships encased in heavy-duty, liquid-tight conduit, the loop lays directly on the graded sub-base and is then paved over under fresh asphalt, concrete, or gravel. Its 6' side spans the travel lane while the 3' side runs in the direction of traffic, leaving roughly 1' 6" of clearance on each edge, an arrangement well suited to suburban single-car driveways, condo/townhome parking pads, and small ranch homes.

Features:

• Fills the non-contact detection role UL 325 assigns to vehicle loops in a 2-device entrapment protection system
• Designed for vehicle detection with gate operators, parking barrier gates, overhead doors, traffic signals, arming devices, and vehicle counters
• Wound from one continuous, non-spliced wire, leaving no splice point between the loop and lead-in to fail
• Heavy-duty, liquid-tight conduit shields the loop from sharp stones, chemicals, ground heaving, and harsh weather
• Fully assembled at the factory, so there is nothing to wind, count, or connect before paving
• Predetermined number of turns removes the guesswork of achieving optimal read range
• Saves labor cost compared with winding a loop by hand in the field

Specifications:

• Loop type: Direct burial
• Total loop length: 18'
• Loop dimensions: 3' x 6'
• Lead-in length: 75'
• Wire gauge: 14 AWG
• Wire material: Polypropylene-wrapped copper wire
• Best-suited driveway width: 9'
• Manufacturer: National Loop Company (NLC)
• Made in America: Yes