Phoenix Contact 1628777 The M23 PRO device connector features a standard straight mounting style and comes shielded, designed for fast locking systems including ONECLICK and standard configurations. The connector has four pins plus PE contacts, requires a standard rotation direction, utilizes pin contact connections with crimping methods, measures 26mm x 26mm in flange dimensions, and complies with lead-free standards under RoHS II without exemptions, meeting the required Pb limit of less than 0.1%.