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WVM611AL

更新时间： 2024-11-06 14:56:39
品牌 Logo 应用领域
力特 - LITTELFUSE /
页数 文件大小 规格书
2页 335K
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See datasheet for operation details.

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WVM611AL 数据手册

 浏览型号WVM611AL的Datasheet PDF文件第2页 
Protection Relays  
Voltage Monitoring Relays  
WVM SERIES  
Description  
The WVM Series provides protection against premature  
equipment (motor) failure caused by voltage faults on the  
3-phase line. The WVM’s microcontroller design provides reliable  
protection even if regenerated voltages are present. It combines  
dependable fault sensing with a 10 fault memory and a 6 LED  
status display. Part instrument, part control, the WVM protects  
your equipment when you’re not there and displays what  
happened when you return. The WVM is fully adjustable and  
includes time delays to prevent nuisance tripping and improve  
system operation. Time delays include a 0.25 to 30s adjustable  
trip delay, an adjustable 0.25 to 64m (in 3 ranges) restart delay,  
plus a unique 3 to 15s true random start delay. The random start  
delay prevents voltage sags caused by simultaneous restarting  
of numerous motor loads after a power outage.  
Wiring Diagram  
Features & Benefits  
FEATURES  
BENEFITS  
Proprietary  
microcontroller  
based circuitry  
Constant monitoring to protect against phase loss,  
phase reversal, over voltage, under voltage,  
unbalance, and short cycling  
F = Fuses  
Stores the 10 most recent faults, which provides  
diagnostics for troubleshooting  
NO = Normally Open  
NC = Normally Closed  
RS = Optional Remote  
Reset Switch  
Fault memory  
LED indication  
Provides visual indictation of existing relay/fault  
status or faults stored in memory.  
Switch selectable  
automatic restart,  
Allows user adjustment to handle unique  
application requirements  
Relay contacts are isolated.  
delayed automatic  
restart, and manual reset  
CAUTION: 2 amp max fast acting fuses must be  
installed externally in series with each input. (3)  
Prevents voltage sags caused by simultaneous  
restarting of multiple motor loads after a  
power outage  
Random start delay  
Operation  
The output relay is energized when all conditions are acceptable  
and the WVM is reset. A restart and/or random start delay may  
occur before the output relay is energized.  
Field Adjustment: Select the line voltage listed on the motor’s  
name plate. This automatically sets the over and undervoltage  
trip points. No further adjustment should be required to achieve  
maximum equipment protection.  
Ordering Information  
MODEL  
LINE VOLTAGE  
UNBALANCE  
TRIP DELAY  
SWITCH SELECTABLE RESET METHOD RESTART DELAY  
WVM011AL  
WVM611AH  
WVM611AL  
WVM611RL  
WVM811AH  
WVM811RL  
WVM911AH  
WVM911AL  
WVM911AL-60  
WVM911AN  
WVM911RH  
WVM911RL  
WVM911RN-60  
500 to 600VAC  
200 to 240VAC  
200 to 240VAC  
200 to 240VAC  
355 to 425VAC  
355 to 425VAC  
400 to 480VAC  
400 to 480VAC  
400 to 480VAC  
400 to 480VAC  
400 to 480VAC  
400 to 480VAC  
400 to 480VAC  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
2 - 10%  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
0.25 - 30s  
Auto restart upon fault trip  
Auto restart upon fault trip  
Auto restart upon fault trip  
Auto restart upon fault correction  
Auto restart upon fault trip  
Auto restart upon fault correction  
Auto restart upon fault trip  
Auto restart upon fault trip  
Auto restart upon fault trip  
Auto restart upon fault trip  
Auto restart upon fault correction  
Auto restart upon fault correction  
Auto restart upon fault correction  
0.25 - 64s  
0.25 - 64m  
0.25 - 64s  
0.25 - 64s  
0.25 - 64m  
0.25 - 64s  
0.25 - 64m  
0.25 - 64s  
0.25 - 64s, no random start delay  
6 - 300s  
0.25 - 64m  
0.25 - 64s  
6 - 300s, no random start delay  
If you don’t find the part you need, call us for a custom product 800-843-8848  
© 2016 Littelfuse Protection Relays & Controls  
www.littelfuse.com/wvm  
Rev: 1-A-062716  
12

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