BD Loops RL 20-40 3x7/4x6 Direct Burial Loop, 40' Lead

BD Loops RL 20-40 is a complete preformed direct burial vehicle detection loop designed for underground applications. It features a 20’ perimeter and fits a 4x6 or 3x7 loop pattern, with a 40 ft lead-in for connection to the loop detector. The rigid loop section is made from solid 16 AWG copper wire, ensuring stable placement during installation. A thick outer jacket tightly binds and protects the conductors for long-term durability. This design reduces air gaps that can cause false detections due to ground vibration. Each loop is tested multiple ways before leaving the factory to support dependable vehicle detection.

Gate Design Tools

Use these BD Loops calculators to size your direct burial loop and estimate sand needed for your gate setup:

• Loop Size Calculator (Loopalator)
• Sand Needed Calculator