Ghisalba GH57 Contactor

Ghisalba GH57 Size 6 Contactor is a rugged three‑pole motor control device designed for three‑phase power circuits up to 690V AC, with a 240 V coil rated for 50–60 Hz to suit standard European mains. The unit is specified for 550A AC‑3 service (and up to 800A AC‑1), and it includes 2 normally open plus 2 normally closed auxiliary contacts (2NO+2NC) for signaling or interlocking. Main current paths accommodate heavy conductors: up to 2 x 240 mm² via terminal connections, or 2 x (50 x 5) mm busbars, with mounting screws sized M10 x 25. This GH57 Size 6 model couples compact form with high current capability and is part of Ghisalba’s range of control and distribution contactors; however, some listings describe this exact unit as cracked. Coil is specified as 220–240V AC at 50–60 Hz, enabling reliable actuation from standard mains.