Installing the Mains Breaker Unit Section 2 Installation
134 3BSE036351-510 A
Installing the Mains Breaker Unit
The mains breaker unit is supplied in separate components that must be mounted
onto a DIN-rail in order to form a complete assembly. Different distribution options
are available, see Figure 61 on page 177 and Figure 62 on page 178. For the sake of
simplicity, the installation described covers the redundant power
supplies/independent power supplies option.
Use the following procedure to correctly install the mains breaker unit:
1. Mount the mains breaker unit components onto the DIN-rail, from left to right,
close to the incoming power supply, in the order given below (see
Figure 42 on
page 135).
a. A DIN-rail end-stop (1).
b. The terminal for the incoming protective ground (2).
c. The two terminals for the incoming Live and Neutral mains power (3).
These
terminals are equipped with built-in jumpers which, if necessary,
can be opened to provide complete mains input power isolation.
d. The miniature mains breaker unit (4).
e. The protective ground distribution terminal (5).
f. The mains distribution terminal block (6), depending on the required
configuration.
g. A DIN-rail end-stop (1).
2. Connect the incoming mains, the protective ground terminals, the mains
breaker and the distribution terminals as shown in
Figure 42 on page 135.
3. Install the two required links (7), fuse holders (8) and jumpers (9) onto
the
distribution terminals. Fit the required fuses into the fuse holders, (glass
tube type, 5 x 20
mm (0.2 x 0.8 in)).
The protective ground terminal (2) is fitted with a knife-like device to provide
automatic grounding to the DIN-rail.
To Next Page
Loading...
Need help?
General
