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2021-07-15 / V1.0
Product information
Contactors C320K/C320S – Installation and Maintenance Manual
4. Product information
4.1 C320 – 1 pole bi-directional DC
NO contactors
The C320 is a single-pole bi-directional DC contactor in
the power class up to 1,000 A. It ensures that high loads
are switch-off safely and provides reliable protection in
the event of a fault in the system. Typical applications
are the use as main contactor in battery management
systems of high-voltage vehicle batteries, in charging
stations for e-mobility, in battery test benches but also
in the DC circuits of inverters of photovoltaic systems.
A very efficient ceramic arc chamber, double-break
contacts an high breaking capacity are important fea-
tures of the new contactor.
X
Compact dimensions – high rated insulation volt-
age U
i
up to 1,800 volts
X
High making capacity I
cm
of up to 3,000 amps and
an excellent breaking capacity
X
High thermal continuous current I
th
of up to
1,000 amps and high rated short-time withstand
current I
cw
up to 4,500 amps
X
Full bidirectionality – safe disconnection of high
power independent of the current flow direction
X
4 auxiliary switches, 2 of them with mirror contact
function for diagnosis and switching status moni-
toring
X
Low energy consumption and low heating thanks
to sophisticated coil saving circuit
4.2 Technical information and material
properties
For technical information and material properties, refer
to the corresponding data sheets and to our
C320 cata-
logue
. The
C320 catalogue
is available under:
https://www.schaltbau.com/media/C320_en.pdf
