Altech Corporation, founded in 1984, is a United States supplier of components and devices used in industrial control, instrumentation, medical and automation applications. The Altech product line includes miniature circuit breakers, busbars, DC-UPS devices, digital panel meters, DIN rail terminal blocks, printed circuit board terminal blocks, contactors, industrial relays, motor disconnect swi
speakON Chassis Connectors - 4 pole chassis connector - black D-size flange - self tapping screw holes (A-screw) - switchable version of NL4MD-V with 8 vertical PCB contacts (4 switching contacts). Switch is closed unless mating of speakON cable connector