JRS4

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1.Application
JRS4 series thermal relay is suitable for using in the circuit rated voltage up to 660V, ratedcurrent 93A AC 50/ 60Hz, for over-current protection of AC motor. The relay has the differentialmechanism and temperature compensation and can plug in CJX2 series AC contactor. Theproduct 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±5^oC
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±5^oC
2	1.15	0	<2h	Heat state(Following the No.1 test)

4. Specification

Type	Number	Setting range (A)	For contactor
JRS4-25	1301	0.1~0.16	CJX2-09~32
	1302	0.16~0.25	CJX2-09~32
	1303	0.25~0.4	CJX2-09~32
	1304	0.4~0.63	CJX2-09~32
	1305	0.63~1	CJX2-09~32
	1306	1~1.6	CJX2-09~32
	1307	1.6~2.5	CJX2-09~32
	1308	2.5~4	CJX2-09~32
	1310	4~6	CJX2-09~32
	1312	5.5~8	CJX2-09~32
	1314	7~10	CJX2-09~32
	1316	9~13	CJX2-09~32
	1321	12~18	CJX2-09~32
	1322	17~25	CJX2-32
JRS4-36	2353	23~32	CJX2-09~32
JRS4-36	2355	30~40	CJX2-09~32
JRS4-93	3322	17~25	CJX2-09~32
	3353	23~32	CJX2-09~32
	3355	30~40	CJX2-09~32
	3357	37~50	CJX2-09~32
	3359	48~65	CJX2-09~32
	3361	55~70	CJX2-09~32
	3363	63~80	CJX2-09~32
	3365	80~93	CJX2-95
JRS4-150	4365	80~104	CJX2-95
	4367	95~120	CJX2-95~115
	4369	110~140	CJX2-115

Type	Number	Setting range (A)	For contactor
JRS4-150	5369	90~150	CJX2-150
JRS4-200	F5357	30~50	CJX2-F115~F185
	F5363	48~80	CJX2-F115~F185
	F5367	60~100	CJX2-F115~F185
	F5369	90~150	CJX2-F115~F185
JRS4-630	F5371	132~220	CJX2-F225~F265
	F7375	200~330	CJX2-F225~F500
	F7379	300~500	CJX2-F225~F500
	F7381	380~630	CJX2-F400~F630