1
2
1

Setting current range

2

Embended Current Transformer
มี CT ในตัววัดค่ากระแสไฟฟ้าได้

Related products

EOCR-SS Schneider (Samwha)

Digital Over current Motor Protection Relay Static & electronic over current relay developed to resolve the drawbacks of previous thermal/induction relays

Type               Setting Range
EOCR-SS 05    0.5 ~ 6A
EOCR-SS 30    3.0 ~ 30A
EOCR-SS 60    5.0 ~ 60A

(0.5~60A , 220VAC)
Over Current, Locked Rotor, Phase Loss

alternative product for electronic over current relay TeSys lt47 is very similar to EOCR SS (lt4760 = SS-60) It could be suggested as a closest match.

Main Features
• Micro compact size
• Protection against over current/phase loss/locked rotor (phase loss/locked rotor operates by over current)
• Separate setting for startup delay/operation delay time
• Relay resistant to vibration and short-circuit applied (1a1b applied) * 1c for standard type
• Integrated AC/DC operating power supply (Free voltage) * AC 100~240V for standard type
• Operation display and active current check (LED)
• Manual (instant)/electrical reset
• Capable of protecting the motor with precisely applied MCU
• N Type, R Type integration (can select Dip switch) * R-type only for standard type
• NVR (No Volt Release) function / Fail Safe
• Super power-saver and strong environmental resistance
• Under voltage induction motor (600V)/High voltage motor(3.3kV) protective relay (uses high voltage CT)
• Shock relay by specialized machine
• Current relay for fault monitoring
• For replacement of thermal protective relay

Protection Functions and Characteristics

Protected Items Operation Time
Over Current O-TIME
Phase Loss O-TIME
Locked Rotor O-TIME + D-TIME

Information

Main Features

• Micro compact size
• Protection against over current/phase loss/locked rotor (phase loss/locked rotor operates by over current)
• Separate setting for startup delay/operation delay time
• Relay resistant to vibration and short-circuit applied (1a1b applied) * 1c for standard type
• Integrated AC/DC operating power supply (Free voltage) * AC 100~240V for standard type
• Operation display and active current check (LED)
• Manual (instant)/electrical reset
• Capable of protecting the motor with precisely applied MCU
• N Type, R Type integration (can select Dip switch) * R-type only for standard type
• NVR (No Volt Release) function / Fail Safe
• Super power-saver and strong environmental resistance
• Under voltage induction motor (600V)/High voltage motor(3.3kV) protective relay (uses high voltage CT)
• Shock relay by specialized machine
• Current relay for fault monitoring
• For replacement of thermal protective relay

Specification
Main
range of product
EOCR
device short name
EOCR-3D420
product or component type
Protection relay
protection type
Overload, In > OC setting
Sensitivity to phase loss
Sensitivity to phase reverse
Locked rotor, In > 3 times OC setting
Phase unbalance, 50 %
product specific application
Overcurrent protection
analogue output range
4…20 mA
network type
AC
network frequency
50…60 Hz
protection ajustment range
0.5…10 A
tripping threshold
0.5…6 A
Complementary
[Us] rated supply voltage
220 V AC
mounting support
35 mm DIN rail
Panel
contacts type and composition
1 NO + 1 NC (OL)
short-circuit and overload protection
By 4 A gG fuse
[Ue] rated operational voltage
600 V AC 50…60 Hz for power circuit conforming to UL
690 V AC 50…60 Hz for power circuit conforming to CSA
690 V AC 50…60 Hz for power circuit conforming to IEC 60947-4-1
[Uimp] rated impulse withstand voltage
6 kV IEC 60947-4-1
reset
Manual reset
Electrical 0…1 s by interruption of power supply
time delay type
O-Time: 0.3, 1…30 s, off (definite)
D-Time: 1…120 s, off (definite)
O-Time: 1…30 class (inverse)
D-Time: 0…120 s (inverse)
display type
7 segments LED
power consumption per relay
3 W
connections – terminals
Control circuit: cable 2 x 1…1.5 mm²flexible with cable end – M3
Control circuit: cable 2 x 1…1.5 mm²flexible without cable end – M3
Control circuit: cable 1 x 1…2.5 mm²flexible with cable end – M3
Control circuit: cable 1 x 1…2.5 mm²flexible without cable end – M3
tightening torque
Control circuit: 0.8…1.2 N.m on cable, 4.7 mm
height
71 mm
width
70 mm
depth
68 mm
net weight
0.325 kg
Environment
standards
IEC 60947-4-1
IP degree of protection
IP20 conforming to IEC 60529
ambient air temperature for operation
-20…60 °C conforming to IEC 60947-4-1
ambient air temperature for storage
-30…80 °C
operating altitude
2000 m
fire resistance
650 °C conforming to IEC 60695-2-12
960 °C conforming to UL 94
shock resistance
15 gn for 11 ms conforming to IEC 60068-2-7
vibration resistance
4 gn on panel mounting conforming to IEC 60068-2-6
2 gn on 35 mm DIN rail conforming to IEC 60068-2-6
dielectric strength
2 kV 50…60 Hz in between case and circuit conforming to IEC 60255-5
1 kV 50…60 Hz in between contact conforming to IEC 60255-5
2 kV 50…60 Hz in between circuit conforming to IEC 60255-5
surge withstand
6 kV conforming to IEC 61000-4-5
electromagnetic compatibility
Resistance to radiated electromagnetic fields: 10 V/m level 3 conforming to IEC 61000-4-3
Resistance to electrostatic discharge: 8 kV air, 6 kV contact conforming to IEC 61000-4-2
Resistance to fast transient: 2 kV conforming to IEC 61000-4-4
Conducted RF disturbances: 10 V conforming to EN 61000-4-6
Conducted RF disturbances: class A conforming to EN 55011
[Ith] conventional free air thermal current
5 A for control circuit
permissible current
250 V, 5 A AC
Packing Units
Package 1 Weight
140.000 g
Package 1 Height
56.000 mm
Package 1 width
56.000 mm
Package 1 Length
77.000 mm
Offer Sustainability
Sustainable offer status
Green Premium product
EU RoHS Directive
Mercury free
Yes
RoHS exemption information
China RoHS Regulation
China RoHS declaration
Product out of China RoHS scope. Substance declaration for your information
Environmental Disclosure
Circularity Profile
WEEE
The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins
DWG

Download

Click to Download | กดเพื่อดาวน์โหลด PDF

> EOCR-SS Pages from EOCR catalog_EN all 2018