Thermal Overload Relay JRS2

3UA Thermal Overload Relay
Application of Thermal Overload Relay JRS2
3UA series thermal overload relay is suitable for power system with AC 50/60Hz, rated operation voltage up to 660V and 1000V, current from 0.1A to 630A. It is used to protect AC three-phase asynchronous motor against overload and open-phase.
The current setting value can be regulated and the setting current values of many thermal elements are intercrossing overlapping arrangement, for easy selecting by the customers from -25Ûc to +55Ûc air temperature as the products have temperature compensating. The relays have the test push-button for breaking NC contacts, the operating indication and free trip characteristics. The items conform to IEC60947-5.
Specifications

Type	Retum mode	Adjustment				Contact Arragement
		Nominal Rating(A)		Setting Range(A)
JRS2-12.5/Z	Manual or Auto retum	0.16	2.5	0.1-0.16	1.25-2	1NO+1NC
		0.25	3.2	0.16-0.25	1.6-2.5
		0.4	5	0.25-0.4	2-3.2
		0.5	6.3	0.32-0.5	3.2-5
		0.63	8	0.4-0.63	4-6.3
		1.25	10	0.63-1	5-8
		1.6	12.5	0.9-1.25	6.3-10
		2	14.5	1-1.6	8-12.5
JRS2-25/Z	Manual or Auto retum	0.16	6.3	0.1-0.16	2-3.2	1NO+1NC
		0.25	8	0.16-0.25	2.5-4
		0.4	10	0.25-0.4	4-6.3
		0.5	12	0.32-0.5	5-8
		0.63	5	0.4-0.63	6.3-10
		1	16	0.63-1	8-12.5
		2.5	20	0.9-1.25	10-16
		1.6	25	1-1.6	12.5-20
		2	32.5	1.25-2	16-25
		3.2		1.6-2.5
JRS2-32/Z	Manual or Auto retum	6.3	25	4-6.3	16-25	1NO+1NC
		10	32	6.3-10	20-32
		16	36	10-16	25-36
		20		12.5-20
JRS2-135	Manual or Auto retum	80	120	55-80	90-120	1NO+1NC
		90	135	63-90	110-135
		110		80-110
JRS2-180	Manual or Auto retum	80	135	55-80	110-135	1NO+1NC
		90	150	63-90	120-150
		110	160	80-110	135-160
		120	180	90-120	150-180
JRS2-400	Manual or Auto retum	125	320	80-125	200-320	1NO+1NC
		200	400	125-200	250-400
		250		160-250
JRS2-630	Manual or Auto retum	500	630	320-500	400-630	1NO+1NC