The M55021 cable is available in multiple constructions. These include unshielded and unjacketed, shielded, jacketed, shielded and jacketed, twisted pairs and triplets, shielded, or shielded and jacketed singles. The cable is intended for internal wiring of electrical equipment.  The temperature range for this cable is  -40°C to +105°C for  Type B, C, D, BJ, CJ, or DJ and -55°C to +200°C for Type E or EE. This cable is constructed with PVC insulation and jackets, and are not to be used in aerospace applications.