Figure 78. Ip54 Waterproof Cover; Figure 79 Cassette-Mounted 2-Way Cable Interlock - Eaton SBN-508 Instructions For Installation, Operation And Maintenance

Instructional Leaflet
Effective March 2012

Figure 78. IP54 Waterproof Cover

IP54 Waterproof Cover
A hinged dome shaped waterproof cover attaches to the metal
compartment door to provide waterproof protection for the
circuit breaker (Figure 78) .
Mechanical Interlock
A family of mechanical interlocks are available to interlock
the closing of two or three Magnum SB circuit breakers . The
mechanical interlock holds one or more circuit breakers tripped
(prevents closure) when others are closed . A lever assembly is
mounted on each breaker which interfaces with the pole shaft
and the tripper bar . The lever assemblies are interconnected
with either cables or rods, depending upon the relative
orientation of the breakers . Rods can be used only when the
circuit breakers to be interlocked are vertically stacked . Cables
can be used for any orientation of the breakers . Mechanical
interlocks are available for both fixed and drawout circuit
breakers and in both 2-way and 3-way versions . An illustration
of a 2-way cable interlock mounted on two drawout circuit
breakers is shown in Figure 79 .
54 EATON CORPORATION www.eaton.com
IB2C12063H03
Instructions for Installation, Operation and
Maintenance of Magnum SB Insulated Case
Low Voltage Power Circuit Breakers
Figure 79. Cassette-Mounted 2-Way Cable Interlock