These details include a stainless-steel locking system as standard on each housing, a high-quality multi-layered surface sealing as well as lasered identification marking including the article number. In addition, these details mean there is no need for a special series of housings for corrosive environments. Available in versions with protection class rating IP65 and IP69k these are the only housings to date world-wide that fulfil the protection class test in accordance with the North American standard NEMA 250-1991, Type 4x. With integrated insulation strips, all housings are designed for high voltages.