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Products>RELAY
> 3UA THERMAL RELAY |
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• APPLICATION |
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3UA
series thermal relay is suitable for using in power system
with AC 50Hz, rated operation voltage up to 660V and
1000V, in main circuit, current from 0.1A to 630A. It is
used to protect AC three-phase asynchronous motor against
overload and open-phase.
The relays have the test push-button for breaking NC
contacts and the operating and free trip characteristics
the products also can be supplied with protecting case to
ensure safety the products can plug in the contactor and
install independently or mount by rail. |
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• TECHNICAL SPECIFICATION |
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| Type |
Rated operating
current (A) |
Rated
insulation voltage (V) |
Current setting
range |
| 3UA50 |
12.5 |
660 |
0.1∽0.16,0.16∽0.25,0.25∽0.4,0.32∽0.63,
0.63∽0.1,0.8∽1.25,1∽1.6,1.25∽2,1.6∽2.5,2∽3.2,
2.5∽4,3.2∽5,4∽6,5∽8,3∽10,8∽12.5 |
| 3UA52 |
25 |
660 |
0.1∽0.16,0.16∽0.25,0.25∽0.4,0.32∽0.63,
0.63∽0.1,0.8∽1.25,1∽1.6,1.25∽2,1.6∽2.5,2∽3.2,
2.5∽4,3.2∽5,4∽6,5∽8,3∽10,8∽12.5,10∽16,12.5∽20,16∽25 |
| 3UA54 |
32 |
660 |
4∽6.3,6.3∽10,10∽16,12.5∽20,,16∽25,20∽32 |
| 3UA58 |
80 |
1000 |
16∽25,20∽32,25∽40,32∽50,40∽57,50∽63,57∽70,63∽80, |
| 3UA59 |
63 |
660 |
0.1∽0.16,0.16∽0.25,0.25∽0.4,0.32∽0.63,
0.63∽0.1,0.8∽1.25,1∽1.6,1.25∽2,1.6∽2.5,2∽3.2,
2.5∽4,3.2∽5,4∽6,5∽8,3∽10,8∽12.5,10∽16,12.5∽20,16∽25,
20∽32,25∽40,32∽45,40∽57,50∽63 |
| 3UA62 |
180 |
660 |
55∽80,63∽90,80∽110,90∽120,110∽135 |
| 3UA66 |
400 |
1000 |
80∽125,125∽200,180∽250,200∽320,250∽400 |
| 3UA68 |
630 |
1000 |
320∽500,400∽630 |
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All Rights Reserved By Switchtec Co., LTD
Add: Marenqiao
Village, Liushi Town, Yueqing City, Zheiiang Province, 325604, China
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