Phoenix Contact – CK1,6-ER-2,50BU OIC AG
 Crimp contact – CK1,6-ER-2,50BU OIC AG – 1004366; Crimp contact,  contact diameter: 1.6 mm,  rolled,  Socket,  contact material: Cu alloy, nickel-plated,  contact surface: silver-plated,  connection cross section: 1.5 mm² … 2.5 mm²  AWG 16 … 14