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1.Application
JRS5 thermal relay is suitable for overload protection of AC motor operated on 8-houres dutyor uninterupted duty. The overload protected AC motor with frequency 50Hz, voltage up to660V, current up to 105A. Several functions provided by these relays are: phase-failure protection,temperature compensation, ON/OFF indication and manual/automatic reset. The product con-forms to IEC60947-4-1 stardand.

2. Motion Characteristic: Three-phase Balance Motion Time

No	Times of thesetting current	Motion time			Start condition	Ambienttemperature
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		Motiontime	Start condition	Ambient temperature
	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	Setting range(A)	Forcontactor
JRS5-12/Z	0.2~0.28	S-K10 S-K11 S-K12 S-K18 S-K20 S-K21
	0.4~0.6
	0.55~0.85
	0.7~1.1
	1~1.6
	1.4~2
	1.7~2.5
	2~3
	2.8~4.4
	4~6
	5.2~8
	7~11
	9~13
JRS5-20/F	0.2~0.28	S-K18 S-K20 S-K21 S-K25 S-K35
	0.28~0.42
	0.4~0.6
	0.55~0.85
	0.7~1.1
	1~1.6
	1.4~2
	1.7~2.5
JRS5-20/F	2~3	S-K18 S-K20 S-K21 S-K25 S-K35
	2.8~4.4
	4~6
	5.2~8
	7~11
	9~13
	12~18
	16~22
	18~26
	24~34
	30~40
JRS5-60/F	12~18	S-K50 S-K65 S-K80 S-K95
	16~22
	18~26
	24~34
	30~40
	34~50
	43~65
	54~80
	65~93
	85~105

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