These new Ex solenoid interlocks have a robust die-cast aluminium enclosurewhich ensures durability even with extreme wear and tear. Multiple coatings (passivation, priming, powder coating) guarantee a high degree of corrosionprotection classes IP66/67. The electrical connections are well protected insidea terminal compartment. Additional practical features of the Ex STM 515 series include an actuator headwhich can be positioned in 4 x 90° increments. The mounting of the interlock isthus flexible, which together with the compact design make installation veryversatile. Equally typical for steute switchgear is a modular design with a range ofadditional functions. Users can choose, for example, between the closed-circuitor open-circuit principle, and can also optionally select both a ...