___________________________________________________________________________________________
18
EA200A
9
0
.6
45
45
6
8
.1
9
0
.6
9
4
.6
56.6
18
39.5
7
11.2 EP4-1 Operation manual
EP4-1
DIGITAL VOLTAGE
PROTECTIVE RELAY
User's Manual
RESTRICTIONS ON USE
When using this product in applications
that require particular safety or when
using this product in important facilities,
please pay attention to the safety of the
overall system and equipment. Install fail-
safe mechanisms, perform redundancy
checks and periodic inspections and
adopt other appropriate safety measures
when it is necessary. This product is
rated at Class
Ⅱ
.
SPECIFICATIONS
NAMES AND FUNCTIONS OF FACEPLATE
Operating voltage
AC/DC : 100 - 240V, DC : 8 - 60V(for EP4-11060- only)
EP4-1
L2
L3
S
V
L1
Over
Test
Unbal.
Auto
ff
5S
1S
Rev.
Voltage
Time
Under
Over
Under
Reset
Voltage indicatior
Over voltage
tripping delay
Time indicatior
in second
Under voltage
trippingdelay
Function settings
Manual reset
Display
Under voltage setting
Phase sequence
Setting values displ ay
Over voltage setting
Allowable operating
voltage range
85 ~ 110% of rated operating voltage
Rated frequency
50 / 60 Hz
Contact rating
250VAC 5A (Resistive load)
Display error
±1%(at 550V)
Power consumption
Approx. 3.3VA
Life
Mechanical : 5,000,000 times / Electrical : 100,000 times
Ambient temperature
-10 ~ +50 ºC (without condensation & freezing)
Ambient humidity
MAX 85% RH (without condensation)
Altitude
MAX 2000m
Weight
Approx. 130g
SETTING PROCEDURE
DISPLAY
REV.
ON
OFF
ON
OFF
ON
OFF
ON
OFF
UNBAL.
5S/1S
AUTO
Auto
Off
5S
1S
Unbal.
Rev.
Over
Under
Volt
Over
Under
Volt
Under
Over
Over
Tim e
Under
Tim e
NO INPUT
DIMENSIONS
SAFETY PRECAUTION
This manual uses the following symbols to ensure safe operation of this product.
WARNING
Warnings are indicated when mishandling this product might result in death or serious injury to user.
CAUTION
Cautions are indicated when mishandling this product might result in minor injury to the user, or only
physical damage to the timer.
WARNING
‧
Note this incorrect wiring of this product can damage it and lead to other hazards. Make sure the product has
been correctly wired before turning the power ON.
‧
Before wiring, or removing / mounting the product, be sure to turn the power OFF. Failure to do so might cause
electric shock.
‧
Do not touch electrically charged parts such as the power terminals. Doing so might cause electric shock.
‧
Do not disassemble the product. Doing so might cause electric shock or faulty operation.
CAUTION
‧
Use the product within the operating ranges recommended in the specification (temperature, humidity,
voltage, shock, mounting direction, atmosphere and etc.). Failure to do so might cause fire or faulty operation.
‧
Firmly tighten the wires to the terminal. Insufficient tightening of the wires to the terminal might cause fire.
