The PHOENIX CONTACT part UCT-TMF 5 is a marker specifically designed for terminal blocks. It is a sheet of white markers that come unlabeled, allowing for easy customization. The markers can be labeled using various methods including TOPMARK NEO, TOPMARK LASER, BLUEMARK ID COLOR, BLUEMARK ID, BLUEMARK CLED, THERMOMARK PRIME, THERMOMARK CARD 2.0, and THERMOMARK CARD.The UCT-TMF 5 markers are designed to be easily mounted, with a snap into flat marker groove mounting type. They are compatible with terminal blocks that have a width of 5.2 mm. The lettering field size on each individual marker is 4.4 x 4.7 mm, providing ample space for labeling.Each package of UCT-TMF 5 markers contains a total of 72 individual labels, ensuring you have plenty to work with for your terminal block labeling needs.