High Security Bollard Modules Crash Rated PU50/P2Lift-Out Bollards that can be locked into place.Delta Scientific’s DSC650 Shallow Foundation High Security Bollard arrays are a down-scaled version of the DSC600 arrays. The DSC650 fixed bollard modules will stop a 5000-pound (2300 kg) vehicle going 50 mph (80 kph) while the DSC600 array stops a 15,000-pound (6900 kg) vehicle going the same speed.The DSC650 module functions as a standalone module or part of an extended array on shallow substrates, including those that are not level or have turns. Two modules are available. The first model provides a choice of having either one or two of the bollards being removable, to let vehicles through, and lockable so they cannot be removed by unauthorized people. The second is a corner module of 90 degrees featuring three bollards. Both versions are available with Delta standard or custom decorative cast aluminum or fiberglass coverings.