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EL731-12-00 PDF预览

EL731-12-00

更新时间： 2024-11-07 22:52:43
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力特 - LITTELFUSE /
页数 文件大小 规格书
2页 368K
描述
AC/DC EARTH-LKGE RELAY

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EL731-12-00 数据手册

 浏览型号EL731-12-00的Datasheet PDF文件第2页 
Protection Relays and Controls  
Earth-Leakage Protection–Grounded AC or DC Systems  
EL731 SERIES  
AC/DC Sensitive Earth-Leakage Relay  
Description  
The EL731 is a microprocessor-based AC/DC Sensitive  
Earth-Leakage Relay that offers complete coverage for all  
frequencies from 0 to 6,000 Hz. Two CTs are required for the  
entire frequency range, or one CT can be used for only low- or  
high-frequency detection. An RTD/PTC sensor input allows  
over-temperature protection for a motor or drive. The EL731  
offers metering, password-protected alarm and trip settings  
and optional network communications. It is primarily used to  
add low-level ground-fault protection to variable-speed drives,  
and to dc circuits.  
Simplified Circuit Diagram  
A
A
CT1  
CT2  
A
B
C
A
CT1  
GROUNDED  
AC SUPPLY  
+
–
GROUNDED  
DC SUPPLY  
EL731 SERIES  
ꢀꢁCꢂꢃC ꢄensitiꢅe  
ꢆartꢇꢈLeaꢉaꢊe Relayꢋ  
EL731 SERIES  
ꢀꢁCꢂꢃC ꢄensitiꢅe  
ꢆartꢇꢈLeaꢉaꢊe Relayꢋ  
L1  
L2  
L1  
L2  
AC Mode  
DC Mode  
For detailed wiring diagram, see adjacent page.  
Accessories  
Ordering Information  
EFCT Series Earth-Fault Current  
Transformer  
Required zero-sequence current transformer  
specifically designed for low level detection.  
A
CONTROL  
ORDERING NUMBER  
POWER  
COMMUNICATIONS  
EL731-00-X0  
EL731-01-X0  
EL731-02-X0  
EL731-03-X0  
EL731-04-X0  
EL731-10-X0  
EL731-11-X0  
EL731-12-X0  
EL731-13-X0  
EL731-14-X0  
EL731-20-X0  
EL731-21-X0  
EL731-22-X0  
EL731-23-X0  
EL731-24-X0  
120/240 Vac/Vdc  
None  
120/240 Vac/Vdc  
120/240 Vac/Vdc  
120/240 Vac/Vdc  
120/240 Vac/Vdc  
48 Vdc & 24 Vac  
48 Vdc & 24 Vac  
48 Vdc & 24 Vac  
48 Vdc & 24 Vac  
48 Vdc & 24 Vac  
24 Vdc  
DeviceNet™  
Profibus®  
EtherNet/IP™  
Modbus® TCP  
None  
DeviceNet™  
Profibus®  
EtherNet/IP™  
Modbus® TCP  
None  
AC700-CUA Series  
Communication Adapter  
Optional network-interface and firmware-  
upgrade communications adapters field-install  
in EL731.  
AC700-SMK DIN-rail & Surface-mount Adapter  
EL731 plugs into adapter for back-plane  
mounting.  
ACCESSORIES  
EFCT Series CT  
REQUIREMENT  
One Required  
AC700-CUA Series Com. Unit  
AC700-SMK Surface-Mount Kit  
Optional  
Optional  
24 Vdc  
DeviceNet™  
Profibus®  
EtherNet/IP™  
Modbus® TCP  
AC700-CVR-00 Watertight Cover (IP66) for  
Panel-Mount Applications  
24 Vdc  
Optional  
Optional  
24 Vdc  
PGA-0520 Analog Meter  
24 Vdc  
Note: When building a part number, replace the “X” with “1” for AS/NZS 2081:2011 Compliant product, “0” otherwise.  
Rev: 4-F-040716  
Based on Manual Rev 6-F-031116  
© 2016 Littelfuse Protection Relays & Controls  
Littelfuse.com/el731  
12

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