Untitled Document

JRS2(3UA) Series Thermal Relay


JRS2-12.5/Z	JRS2-25/Z	JRS2-32/Z	JRS2-45/Z

JRS2-63/Z	JRS2-80/Z	JRS2-135/Z	JRS2-150/Z

JRS2-180/F	JRS2-400/F	JRS2-630F

1.Application
JRS(3UA)2 thermal relay is suitable for AC 50/60Hz, voltage up to 660V and current up to 630A,general AC motor of long or discontinuous long operation, used as overload protection and hasthe functions of breaking phase protection, temperature compensation, and trip indication. Itcan automatically and manually get back. It can be fixed with contactor CJX1 together, also beindependtly fixed. The product conforms to IEC60947-4-1 stardand.

2. Motion Characteristic: Three-phase Balance Motion Time

No	Times of the setting current	Motion time			Start condition	Ambient temperature
1	1.05	>2h			Cold state	20±5oC
2	1.2	<2h			Heat state(Following the No.1 test)
3	1.5	<4min
4	7.2	10A	2s< Tp≤10s	≤63A	Cold state
		10	4s< Tp≤10s	>63A

3. Phase-losing Motion Characteristic

No	Times of the setting current		Motion time	Start condition	Ambienttemperature
	Any two phases	Another phase
1	1.0	0.9	>2h	Cold state	20±5oC
2	1.15	0	<2h	Heat state(Following the No.1 test)

4. Specification

Type	Number	Setting range(A)	For contactor	Type	Number	Setting range(A)	For contactor
JRS2-12.5/Z (3UA50)	0A	0.1~0.16	3TB40 3TF40 3TB41 3TF41	JRS2-25/Z (3UA52)	0A	0.1~0.16	3TB40 3TF40 3TB41 3TF41
	0C	0.16~0.25			0C	0.16~0.25
	0E	0.25~0.4			0E	0.25~0.4
	0G	0.4~0.63			0G	0.4~0.63
	0J	0.63~1			0J	0.63~1
	0K	0.8~1.25			0K	0.8~1.25
	1A	1~1.6			1A	1~1.6
	1B	1.25~2			1B	1.25~2
	1C	1.6~2.5			1C	1.6~2.5
	1D	2~3.2			1D	2~3.2
	1E	2.5~4			1E	2.5~4
	1F	3.2~5			1F	3.2~5
	1G	4~6.3			1G	4~6.3
	1H	5~8			1H	5~8
	1J	6.3~10			1J	6.3~10
	1K	8~12.5			1K	8~12.5
	2S	10~14.5			2A	10~16
					2B	12.5~20
					2C	16~25
Type	Number	Setting range(A)	For contactor	Type	Number	Setting range(A)	For contactor
JRS2-32/Z (3UA50)	1G	4~6.3	3TB44	JRS2-63/F (3UA59)	0K	0.8~1.25	3TB40-48 3TF30-48
	1J	6.3~10			1A	1~1.6
	2A	10~16			1B	1.25~2
	2B	12.5~20			1C	1.6~2.5
	2C	16~25			1D	2~3.2
	2D	20~32			1E	2.5~4
	2Q	25~36			1F	3.2~5
JRS2-45/Z (3UA55)	0A	0.1~0.16	3TF44 3TF45		1G	4~6.3
	0C	0.16~0.25			1H	5~8
	0E	0.25~0.4			1J	6.3~10
	0G	0.4~0.63			1K	8~12.5
	0J	0.63~1			2A	10~16
	0K	0.8~1.25			2B	12.5~20
	1A	1~1.6			2C	16~25
	1B	1.25~2			2D	20~32
	1C	1.6~2.5			2E	25~40
	1D	2~3.2			2M	32~45
	1E	2.5~4			2T	40~57
	1F	3.2~5			2P	50~63
	1G	4~6.3		JRS2-135 (3UA60)	2H	55~80	3TF40-50 3TF30-48
	1H	5~8			2W	63~90
	1J	6.3~10			2X	80~110
	1K	8~12.5			3H	90~120
	2A	10~16			3J	110~135
	2B	12.5~20		JRS2-150 (3UA61)	2H	55~80	3TF51
	2C	16~25			2W	63~90
	2D	20~32			2X	80~110
	2Q	25~36			3H	90~120
	2R	32~40			3J	110~135
	8M	36~45			3K	120~150
	1G	4~6.3	3TF46 3TF47 3TF48	JRS2-180/F (3UA62)	2H	55~80	3TF51 3TB52 3TF50 3TF52
JRS2-80/Z (3UA58)	8A	11~17			2W	63~90
	2B	12.5~20			2X	80~110
	2C	16~25			3H	90~120
	2D	20~32			3J	110~135
	2E	25~40			3K	120~150
	2F	32~50			3L	135~160
	2T	40~57			3M	150~180
	2P	50~63		JRS2-400 (3UA66)	2K	80~125	3TF54 3TB56
	2V	57~70			3B	125~200
	2U	63~80			3C	160~250
	8W	70~88			3D	200~320
JRS2-63/F (3UA59)	0A	0.1~0.16	3TF40-48 3TF30-48		3E	250~400
	0C	0.16~0.25		JRS2-630 (3UA66)	3F		3TF56 3TB57
	0E	0.25~0.4			3G
	0G	0.4~0.63
	0J	0.63~1

5. Outline and Mounting Dimension

Type	JRS2-400	JRS2-630
a	50	52
b	146	156
c	70	71
Φ	11	11
e	171	186
f	25×4	30×5

6. Accessories

Pic
Description	JRS2 mounting base	JRS2 mounting base	JRS2 mounting base	Terminal block box
Application	Assembled withJRS2-12.5/Z to form a complete set	Assembled withJRS2-80/Z to form a complete set	Assembled withJRS2-45/Z to form a complete set	Assembled withJRS2-135/Z to form a complete set

Bimetal NR2 0.25-0.4A

Bimetal NR2 0.4-0.63A