Technical information

Through Flexible and Various Options,
To be Built up the Suitable Functions.
Main setting module
Power supply
Optional setting module
Additional function
Electronic Trip Relay
LTD
+
STD
+
INST / MCR
INST / MCR only
LTD
+
STD
+
INST / MCR
G1 E1 AP N5
Ground fault
protection (GFR)
Earth leakage (ER) 2nd Additional Pre-alarm
Neutral pole
50% protection
(1)
(2)
1
2
3
Extension module
EX1
Display
DP1
Temperature alarm
TAL
MCR switch
MCR-SW
1
2
3
With optional setting modules, GFR, ER etc are added easily.
It is neccessary for Display and
LEDs. (see page 19, 20.)
P2
P4
P5
P1
100-240V AC•DC
24-60V DC
100-240V AC / 100-125V DC with output contact
24-60V DC with output contact
100-240V DC with output contact (SSR)
P3
Note (1) : combination with ZCT
(2) : With "N5" optional module, Neutral pole protection will be changed from 100% (standard) to 50%.
Note : *For optimum protective coordination with upstream and/or downstream protective devices such as fuses
and OCRs, WF relay (WF1/WF2/WF3) are provided.
As for the details about WF relay, please make inquiries.
With interchangeable & add-on modules, flexible functions built up.With interchangeable & add-on modules, flexible functions built up.With interchangeable & add-on modules, flexible functions built up.
General use
WS1
WS2
WS3
Generator
protection use
WM1
WM2
WM3
Special use
WB1
WB2
WB3
For spread of electronic devices such as inverter, the actual effective
value detection method is adopted, which is strong against deformed
waveform and is detected from each phase independently .
Secure protection by actual effective value detection
■
Distorted
current
Sin wave
current
Effective value
conversion
Module for display and
communication
Current,Voltage,Power,
Harmonics,Trip current,etc.
The TAL is operated by an
unusual temperature of the
breaker contacts.
Making current release is
possible with MCR switch.
Note : The VT unit is required to
display the measured data
except the load current.