Further information for Harting M12 circular connector M12 L4 pin - 21032121305
Cable connector, straight, pin, A-coding, HARAX connection technology, polyamide (PA), contacts: 4, brass Au over Ni on the plug side, conductor cross-section: 0.34...0.75 mm², rated current: 4 A, polyamide (PA), zinc die-cast, screw locking, protection class: IP65 / IP67 when plugged in