Belden RKMCK-3 Connector

Belden RKMCK-3 is a field-attachable M8, 3-pole connector from Belden/Lumberg Automation, designed for rugged, on-site termination of sensor and actuator wiring in industrial automation. It uses screw-terminal termination for 0.14–0.50 mm² conductors, with a straight M8 coupling and a black PA molded housing, a TPU insert, and a FKM O-ring sealing to deliver IP67 protection when mated. The connector carries a 4 A rating at 40°C, a nominal 60 V (63 V rated) voltage, and a dielectric withstand of 1.5 kV (60 s); it tolerates -40°C to +85°C, has a contact resistance ≤ 5 mΩ, insulation resistance > 1 GΩ, and is built with CuZn contacts nickel-plated with 0.8 μm gold plating. Part number 28046, this 3-pole device is widely used in sensor/actuator circuits in harsh industrial environments and pairs with compatible M8 cables and mating halves for secure, screw-type terminations.