Jr20 Series Thermal Relay

JR20 series thermal relay
JR20 series thermal relay is suitable for the power system of AC 50/60Hz, main circuit rated voltage up to 660V, current up to 630A, used as protecting AC three-phase motor against overload and phase losing, and forming electromagnetic with starter CJ20 series AC contactor. It has functions of phase-losing protection temperature compensation, trip indication. It can manually and automatically get back. The product conforms to GB14048.4, IEC60947-4 stardands.
Main technical Specifications
Type
Number
5WSetting Range(A)
For Contactor
JR20-10L
1R
0.1~0.15
CJ20
-10
2R
0.15~0.23
3R
0.23~0.35
4R
0.35~0.53
5R
0.53~0.8
6R
0.8~1.2
7R
1.2~1.8
8R
1.8~2.6
9R
2.6~3.8
10R
3.2~4.8
11R
4~6
12R
5~7
13R
6~8.4
14R
7~10
15R
8.6~11.6
JR20-16L
1S
3.6~5.4
CJ20
-10
-16
2S
5.4~8
3S
8~12
4S
10~14
5S
12~16
6S
14~18
JR20-25L
1T
7.8~11.6
CJ20
-16
-25
2T
11.6~17
3T
17~25
4T
21~29





JR20-63L
1U
16~24





CJ20
-40
-63
2U
24~36
3U
32~47
4U
40~55
5U
47~62
6U
55~71
JR20-160L
1W
33~47





CJ20
-100
-160
2W
47~63
3W
63~84
4W
74~98
5W
85~115
6W
100~130
7W
115~150
8W
130~170
9W
144~176

JR20-250L
1X
130~195

CJ20
-250
2X
167~250

JR20-400L
1Y
200~300

CJ20
-400
2Y
267~400

JR20-630L
1Z
320~480

CJ20
-630
2Z
420~630
Motion characteristic

MOTION CHARACTERISTIC: THREE-PHASE BALANCE MOTION TIME
No
Times the setting current
Motion time
Start conidition
Ambient temperature
1
1.05
>2h
Cold state
20± 5
2
1.2
<2h
Heat state
(Following the No. 1 test)
3
1.5
<4min
4
7.2
10A
2s ≤ 63A
Cold state
10
4s >63A

PHASE-LOSING MOTION CHARACTERISTIC
No
Times the setting current
Motion time
Start condition
Ambient temperature
Any two phase
Another phase
1
1.0
0.9
>2h
Cold state
20± 5