Phoenix Contact 1503373 A master cable specifically designed for sensor and actuator boxes features a polyethylene (PE) conductor, is unshielded, constructed from a combination of polyurethane (PUR) and polypropylene (PP) materials, has 19 contact points, with four 0.50 mm2 and three 1.00 mm2 gauge wires, and spans an overall length of 50 meters.