Cradle Mounted Options; Secondary Disconnect; Isolation Shutters; Profibus Or Modbus Communication - Siemens WL Series Selection And Application Manuallines

Low Voltage Circuit Breaker
Cradle accessories and options
The following items are available for WL cradles. Items are
described to highlight the functional characteristics of these
factory installed cradle options.
Secondary disconnects
Secondary disconnects are used to interconnect external breaker
control and signaling circuitry to the WL breakers factory wired
circuitry. Three types of external connection terminals are
available. 1. Screw compression for bare wire, 2. Tension spring
compression for bare wire and, 3. Captive screw connections for
Siemens type ring lugs (WL10RL).
Characteristics table
Wire connection type
Secondary Screw compression
disconnects Tension spring compression
Ring lug terminal

Isolation shutters

When removing a draw-out breaker from its connected position
the primary contacts become exposed and more accessible to
personnel in the breaker compartment. Isolation shutters reduce
that accessibility to the primary terminals by automatically
closing the access ports to the primary terminals while the
breaker is in the test or disconnect positions. After removal
of the breaker from its compartment, the shutters may be
padlocked to inhibit manual shutter opening while breaker is
not in the compartment.
16
Characteristics table
Number of wires and sizes
1 x 14AWG or 2 x 16AWG
2 x 14AWG
2 x 14AWG or 2 x 16AWG
or 1 x 10AWG

Dual key breaker locking

For draw-out breakers, a cradle mounted breaker lockout device
can be used with single or dual key cylinders. One key cylinder
holds the key captive when the breaker is closed and releases the
key when the breaker is opened. The other key cylinder locks the
breaker from being removed from its breaker compartment. The
key is removable when racked into the disconnect position. Key
cylinders can be keyed alike or unique for interlocking with other
breakers in the distribution system. Superior or Kirk Key lock types
are available. Custom keys must be supplied by others.

PROFIBUS or MODBUS communication

PROFIBUS or MODBUS communication requires a COM15
or COM16 converter to retain WL data in temporary buffers
for transmission to external PCs or PLC monitoring systems.
External communication connection to either module is
through a DB-9F connector.
Operating voltage
Peak inrush current
Max. continuous current
Ambient temperature
WL Circuit Breaker selection and application guide
24VDC
280mA
125mA
-25 to 70ºC