Littelfuse D0400 Series - Manual (Page 3)

D0100 Arc Detecting Relay
for 4-0V DC battery supply
For use with:
· A0200
· A0300
· D0400
· D0500
· D0700
The D0100 is a detecting relay which can
monitor up to 16 arc detectors in parallel
through D0400 or D0500 Junction Boxes.
In case of an arcing fault, the relay gen-
erates a fast tripping pulse, less than
1msec., to the circuit breaker(s) supply-
ing the installation. The arcing time is
thus reduced to the mechanical opening
time of the circuit breaker, The relay is
solid state with complete isolation be-
tween input and output. Thus the relay
and the circuit breaker may have differ-
ent pilot voltages.
The TEST-position on the relay is used
to test the tripping without opening the
circuit breaker. The 2 free signal contacts
is for remote indication of arcing fault
trip and indication for absence of pilot
voltage - or for indication of the TEST-
function is activated.
The sensitivity to light is adjustable on
the front plate SENS.ADJ knob within
1-12mA. The range is 2.000-24.000lux
enabling you to use the sensors under
different light conditions, indoor light,
sunlight etc.
The preset is 6mA/12.000lux.
Arc-fault Protection
D0400 Junction Box
For use with:
· D0100
· D0900
· A0200
· A0300
The D0400 is for connection of up to 8
detectors in parallel without indication.
D0900 Arc Detecting Relay
for AC supply
For use with:
· D0400
· A0200
· A0300
The D0900 is a detecting relay which can
monitor up to 16 arc detectors in parallel
through D0400 Junction Box.
In case of an arcing fault, the relay gen-
erates a fast tripping pulse, less than 1
mSec., to the circuit breaker(s) supply-
ing the installation. The arcing time is
thus reduced to the mechanical opening
time of the circuit breaker, The relay is
solid state with complete isolation be-
tween input and output.
The relay has energy stored in a storage
capacitor charged with a DC voltage to
trip the circuit breaker.
The TEST-position on the relay is used
to test the tripping without opening the
circuit breaker. The 2 free signal con-
tacts are for remote indication of arcing
fault trip and indication for absence of
pilot voltage - or for indication of the
TEST-function is activated. Both contacts
are activated after tripping as the relay
normally disconnects its own supply
voltage.
The sensitivity to light is adjustable on
the front plate SENS.ADJ knob within
1-12mA. The range is 2.000-24.000lux
enabling use of sensors under different
light conditions, indoor light, sunlight etc.
The preset is 6mA/12.000lux.
A000/A000 Detector
For use with:
· D0100
· D0900
· D0400
· D0500
The A0200/A0300 both reacts on light
and is available with 180º or 360º charac-
teristic. To be installed in each cubicle/
drawer and should be shielded from
normal switching arcs. Detectors are
supplied with 5m, 10m or 15m of cable
and a mounting bracket.