3UA Thermal relay
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Application
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3UA thermal relay is suitable for A.C. 50/60Hz .voltage up to 690-1000V and current up to 630A. general AC motor of long or discontinuous long operation, and trip inducation. It can automati cally and manually get back, phase protection, temperature compensation, and trip indication. It can automati cally and manually get back. It can be fixed with contactor together, also be independtiy fixed. The product comforms to GB14048.4, IEC60947-4 & VDE0660 stardands.
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Type and
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Motion Characteristic:Three-Phase Balance Motion Time
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No.
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Set current cinles |
Motion time
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Start conidition
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Temperature
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| 4 |
1.05
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＞2h
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cold state
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20±5℃
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| 3 |
1.2
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＜2h
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heat state
Following the No.1 test)
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| 2 |
1.5
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＜4min
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| 1 |
7.2
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10A
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2s＜Tp≤10s
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≤63A
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cold state
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10A
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2s＜Tp≤10s
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＞63A
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Phase-losing motion characteristic
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No.
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Set current cinles
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Motion
time
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Start
conidition
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Temperature
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| Arbitrary two phase |
Three Phase
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| 1 |
1.0 |
0.9
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＞2h
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cold state |
20±5℃
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| 2 |
1.15 |
0 |
＜2h
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heat state
(Following the
No.1 test)
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Tripcharacteristic
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Thermal relay manual reset time is ≤2min or blow auto reset time is ≤5min(Rated
current ≤63A) or ≤8min (Rated current ＞63A)
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Specificarions
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| Type |
Number |
Setting Range(A) |
Contavtor Insert |
| 3UA-12/Z |
0A
|
0.1~0.16
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CJX1-9
CJX1-12
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0C
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0.16~0.25
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0E
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0.25~0.4
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0G
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0.4~0.63
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0J
|
0.63~1
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0K
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0.8~1.25
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1A
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1~1.6
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1B
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1.25~2
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1C
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1.6~2.5
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1D
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2~3.2
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1E
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2.5~4
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1F
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3.2~5
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1G
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4~6.3
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1H
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5~8
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1J
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6.3~10
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1K
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8~12.5
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2S
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10~14.5
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| Type |
Number |
Setting Range(A) |
Contavtor Insert |
3UA-25/Z
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0A
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0.1~0.16
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CJX1-16
CJX1-22
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0C
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0.16~0.25
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0E
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0.25~0.4
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0G
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0.4~0.63
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0J
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0.63~1
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0K
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0.8~1.25
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1A
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1~1.6
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1B
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1.25~2
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1C
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1.6~2.5
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1D
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2~3.2
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1E
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2.5~4
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1F
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3.2~5
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1G
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4~6.3
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1H
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5~8
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1J
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6.3~10
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1K
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8~12.5
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2A
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10~16
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2B
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12.5~20
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2C
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16~25
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| Type |
Number |
Setting Range(A) |
Contavtor Insert |
| 3UA-32/Z |
1G
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4~6.3
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CJX1-32
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1J
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6.3~10
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2A
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10~16
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2B
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12.5~20
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2C
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16~25
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2D
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20~32
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2Q
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25~36
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3UA-45/Z
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0A
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0.1~0.16
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CJX1-32
CJX1-38F
CJX1-38
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0V
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0.16~0.25
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0E
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0.25~0.4
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0G
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0.4~0.63
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0J
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0.63~1
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0K
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0.8~1.25
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1A
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1~1.6
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1B
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1.25~2
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1C
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1.6~2.5
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1D
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2~3.2
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1E
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2.5~4
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1F
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3.2~5
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1G
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4~6.3
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1H
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5~8
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1J
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6.3~10
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1K
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8~12.5
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2A
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10~16
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2B
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12.5~20
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2C
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16~25
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2D
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20~32
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2Q
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25~36
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2R
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32~40
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8M
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36~45
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3UA-80/Z
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1G
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4~6.3
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CJX1-45
CJX1-63
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8A
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11~17
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2B
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12.5~20
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2C
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16~25
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2D
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20~32
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2E
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25~40
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2F
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32~50
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2T
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40~57
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2P
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50~63
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2V
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57~70
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2U
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63~80
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8W
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70~88
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3UA-63/F
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0A
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0.1~0.16
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CJX1-9
CJX1-63
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0C
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0.16~0.25
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0E
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0.25~0.4
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0G
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0.4~0.63
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0J
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0.63~1
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Type
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Number
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Setting Range(A)
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Contavtor Insert
3UA Thermal relay
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3UA-63/F
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0K
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0.8~1.25
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CJX1-9
CJX1-63
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1A
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1~1.6
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1B
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1.25~2
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1C
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1.6~2.5
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1D
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2~3.2
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1E
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2.5~4
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1F
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3.2~5
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1G
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4~6.3
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1H
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5~8
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1J
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6.3~10
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1K
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8~12.5
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2A
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10~16
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2B
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12.5~20
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2C
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16~25
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2D
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20~32
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2E
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25~40
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2M
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32~45
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2T
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40~57
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2P
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50~63
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3UA-135
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2H
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55~80
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2W
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63~90
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2X
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80~110
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3H
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90~120
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3J
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110~135
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3UA-150
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2H
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55~80
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CJX1-140
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2W
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63~90
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2X
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80~110
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3H
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90~120
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3J
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110~135
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3K
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120~150
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3UA-180/F
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2H
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55~80
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CJX1-110
CJX1-170
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2W
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63~90
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2X
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80~110
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3H
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90~120
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3J
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110~135
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3K
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120~150
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3L
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135~160
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3M
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150~180
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3UA-400
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2K
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80~125
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CJX1-250
CJX1-400
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3B
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125~200
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3C
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160~250
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3D
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200~320
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3E
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250~400
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3UA-630
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3F
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320~500
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CJX1-400
CJX1-475
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3G
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400~630
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