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Phoenix Contact LINETRAB LIT Compact Surge Protection for MCR Technology


Transients induced onto the signal lines often cause costly damage and downtime. Therefore, surge protection for MCR technology is indispensable. At the same time, there is a demand to save space and reduce wiring time, all at a minimum cost.


Phoenix Contact’s new LINETRAB LIT are space-saving surge protection devices for the MCR technology. Up to 4 signal cores can be protected on a design width of just 6.2 mm. Three/four-wire measurements can thus be realized with just one arrester, thus saving space in the control cabinet.

Even with its low article variety, the LINETRAB product range provides the ideal solution for a wide range of applications such as binary, analog and intrinsically safe circuits.

LIT 1×2-24 is a surge protection device for a floating signal circuit. The cabling system enables simple and time-saving wiring to INTERFACE components and PLC controllers.

LIT 2×2-24 provides protection for two floating signal circuits.

LIT 2×1-24 is a surge protection device for two wires with a common reference potential.

LIT 4×1-24 protects four wires with a common reference potential against surge voltages on a design width of just 6.2 mm.