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TVM460A75S2M PDF预览

TVM460A75S2M

更新时间: 2024-11-20 14:56:39
品牌 Logo 应用领域
力特 - LITTELFUSE /
页数 文件大小 规格书
2页 356K
描述
工作原理 Upon application of line voltage, the restart delay begins. The output relay is de-energized

TVM460A75S2M 数据手册

 浏览型号TVM460A75S2M的Datasheet PDF文件第2页 
Protection Relays  
Voltage Monitoring Relays  
TVM SERIES  
Description  
TheTVM Series Provides protection for motors and other  
sensitive loads. Continuously measures the voltage of each  
of the three phases using a microcomputer circuit design  
that senses under and overvoltage, voltage unbalance, phase  
loss, and phase reversal. Protection is provided even when  
regenerated voltages are present. Includes a trip delay to  
prevent nuisance tripping and a restart delay to prevent short  
cycling after a momentary power outage.  
Operation  
Upon application of line voltage, the restart delay begins.  
The output relay is de-energized during restart delay. Under  
normal conditions, the output energizes after restart delay.  
Undervoltage, overvoltage, and voltage unbalance must be  
sensed for continuous trip delay period before the output is  
de-energized. The output will not de-energize if a fault is  
corrected during the trip delay. The restart delay begins as  
soon as the output relay de-energizes. If the restart delay is  
completed when the fault is corrected, the output relay will  
energize immediately.  
Wiring Diagram  
L1 = Phase A  
L2 = Phase B  
L3 = Phase C  
The output relay will not energize if a fault or phase reversal is  
sensed as 3-phase input voltage is applied.  
NO = Normally Open  
NC = Normally Closed  
C = Common,Transfer Contact  
Reset: Reset is automatic upon correction of a fault.  
LED Operation  
Relay contacts are isolated.  
The LED flashes green during the restart delay, then glows  
green when the output energizes. It flashes red during the trip  
delay then glows red when the output de-energizes. It flashes  
red/green if phase reversal is sensed.  
F = 2A Fast acting fuses are  
recommended, but not required  
Features & Benefits  
FEATURES  
BENEFITS  
Proprietary  
microcontroller based  
circuitry  
Constant monitoring to protect against phase loss,  
phase reversal; over, under, and unbalanced voltage;  
short cycling  
Ordering Information  
Compact design  
measures 2 in.  
(50.8mm) square  
Perfect for OEM applications where cost, size and  
ease of installation are important  
LINE  
VOLTAGE  
VOLTAGE  
TRIP  
RESTART  
DELAY  
MODEL  
UNBALANCE DELAY  
Provides diagnostics of relay, fault and time  
delay status  
LED indication  
Encapsulated  
TVM208A100.5S3S  
TVM230A101S1S  
TVM460A41S5M  
TVM460A75S2M  
TVM480A45S5S  
TVM480A100.5S3S  
208VAC  
230VAC  
460VAC  
460VAC  
480VAC  
480VAC  
10%  
10%  
4%  
0.5s  
1s  
3s  
Protects against shock, vibration and humidity  
1s  
1s  
5m  
2m  
5s  
7%  
5s  
4%  
5s  
10%  
0.5s  
3s  
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/tvm  
Rev: 1-A-062716  

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