PM C is the pre-assembled center terminal for PV modules with aluminum frames. The PM C terminal is available in various versions, depending on the thickness of the PV panel. The clamp has a hammer nut with a special plastic cage to facilitate the positioning of the nut in the central groove of the rail. The spring holds the clamp up until it is tightened to facilitate positioning of the PV panel. Thanks to the spring, the pre-assembled PM C center clamp remains raised during the tightening phases and thanks to the plastic element it remains in position without slipping. The clamps do not need any additional elements such as screws, seals or bolts.
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