The 770-103 is a 3-position black Socket with strain relief housing. It is made with surface-treated copper or copper alloy contacts, chrome-nickel spring steel (CrNi) clamping spring and halogen-free polyamide 6.6 V0 (except cable) insulator. All WINSTA? components are 100% protected against mismating in terms of plugging different number of poles, when turned by 180° and when laterally staggered. It features push-in CAGE CLAMP? connection technology and L Erdung N marking.