Mitsubishi Electric AE-SW Series Instruction Manual page 21

< Load current LED >
The current value which is used as the reference of the load
current indication LED, varies depending on the ETR types
and characteristics setting.
Table 21-1
Usage ETR type
WS
WS1
General use
WS2
WS3
WM
WM1
Generator
WM2
protection use
WM3
WB
Special purpose
WB1
use
WB2
WB3
Note: When the "OVER" of WS type and the "100%" of LED are lighting, the
current value is over LTD pick-up current.
The breaker carries out trip operation after specified time.
< Power supply >
Power supply is required for the trip indicator (LED, alarm contact output), the measurement extension module, the display
(LCD), etc. Over-current tripping, function when there is no control power supply, it operates with the energy of internal CT.
Table 21-2 Ratings of the power supply and output contacts
Type code Rated voltage Criterion for power requirement
100-240V AC·DC
P1
P2 24-60V DC
100-240V AC
P3
100-125V DC
24-60V DC
P4
100-240V DC
P5
Table 21-5 Resetting of the output contact
1 2 3
LTD STD/INST G1/E1/AP
Refer to
Self-holding Self-holding
under table
ETR dial set G1 E1
TRIP side Self-holding Self-holding
Automatic Automatic
ALARM side
reset reset
In case of power type P3 or P4, the alarm contact output relay is high sensitive relay. Therefore may occur a chattering noise
(approximately 1 ms) by ON/OFF operation of the breaker. Please adopt a time constant filter of several ms, or sampling
double reading, or the like.
Base current
Load current
of LED indication
LED indication
OVER
Iu 100
Uninterrupted
80
current
60
%Iu
100
I 80
L
LTD pick-up
60
current
40
%I
L
OVER
100
Ir
80
Rated current
60
%Ir
Alarm output contacts
15VA -
10VA -
15VA 6-contacts
10VA 6-contacts
15VA 6-contacts (SSR)
4 5 6
PAL TAL ERR.
Automatic Automatic Automatic
reset reset reset
Self-holding :
The output is maintained until it
AP
resets.
−
Automatic reset :
Automatic
The output will be reset if it back
reset
to normal condition.
CAUTION
< Pre-alarm function >
When the current exceeds pre-alarm current setting (lp), the
PAL LED will blink. When the LTD time (1/2 of T
the PAL LED will light and output the contact.
Ip
Current
PAL LED
Blink
PAL OUT
1/2 T
L
(contact output)
Table 21-3 Alarm contact capacity (Type code P3 and P4)
Voltage (V) Resistive load cos f=1.0
240
AC
120
125
DC
30
Table 21-4 Current capacity (Type code P5)
Voltage (V) Current
240 0.1A
AC
120 0.1A
0.1A
240
DC
30 0.1A
) is passed,
L
Current
Lighting
ON
OFF
time (t)
Inductive load cos f=0.4 L/R=0.7
1A 0.5A
1A 1A
0.1A 0.05A
1A 1A
Peak current max. ON resistance
0.3A 5Ω
0.3A 5Ω
0.3A 5Ω
0.3A 5Ω
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