Fortress Interlocks has expanded its mGard series of trapped key safety
interlocks to include units with rotary switches for power or control
isolation. Now, the door, bolt and key exchange modules are all available
with 20, 32, 63 or 150A rated rotary switches. The units feature a slim,
stylish die-cast zinc body with pearl bronze finish, while the internal
contact components and keys are constructed from stainless steel. There
are four mounting options: panel, enclosure, back-of-board panel and
concealed. Within a modular arrangement, the 20 and 32A switches may be
fitted behind each lock, while the 63 and 150A switches must not have any
switch fitted behind any immediately adjacent module.