JR36B series thermal overload relayDetailed product description：

The JR36B series thermal relay is suitable for long-term operation or intermittent electrical appliances with AC 50Hz, voltage up to 660V, and current ranging from 0.5 to 630A. It has phase failure protection, temperature compensation, dynamic indication, action activity inspection, manual reset and automatic reset, and a button to manually disconnect normally closed contacts. The thermal relay has reliable action, beautiful appearance and easy installation, and is an ideal replacement for the JR168 series. The product meets standards such as GB14048.4-93.



Product variety and specifications
Types of thermal relays
According to the rated current level, it is divided into 7 levels: 20, 32, 63, 160, 250, 400, and 630.
The specifications for the setting current of the thermal relay and the setting current of the thermal element are shown in Table 1

JR36B series thermal overload relay model and appearance

Thermal relay model	Thermal relay setting current (A)	Hot element part number
		Component number	Set current (A)	Current regulation range
JR36B-20	twenty	one	zero point three five	0.25～0.35
		two	zero point five	0.32～0.5
		three	zero point seven two	0.45～0.72
		four	one point one	0.68～1.1
		five	one point six	1～1.6
		six	two point four	1.5～2.4
		seven	three point five	2.2～3.5
		eight	five	3.2～5
		nine	seven point two	4.5～7.2
		ten	eleven	6.8～11
		eleven	sixteen	10~16
		twelve	twenty-two	14~22
JR36B-32	thirty-two	thirteen	sixteen	10~16
		fourteen	twenty-two	14~22
		fifteen	thirty-two	20~32
JR36B-63	sixty-three	sixteen	twenty-two	14~22
		seventeen	thirty-two	20~32
		eighteen	forty-five	28~45
		nineteen	sixty-three	40~63
JR36B-160	one hundred and sixty	twenty	sixty-three	40~63
		twenty-one	eighty-five	53~85
		twenty-two	one hundred and twenty	75~120
		twenty-three	one hundred and sixty	100~160
JR36B-250	two hundred and fifty	twenty-four	two hundred	130～165～200
		twenty-five	two hundred and fifty	160～200～250
JR36B-400	four hundred	twenty-six	three hundred	200～250～300
		twenty-seven	four hundred	250～320～400
JR36B-630	six hundred and thirty	twenty-eight	five hundred	320～400～500
		twenty-nine	six hundred and thirty	420～525～630

JR36B series thermal relays can be installed independently and can be used with various contactor ligands. The fixing method can be fixed with screws When connecting the main circuit, the appropriate connecting wire for the thermal element should be selected according to Table 3 and Table 1. The maximum load area of the connecting wire for the auxiliary circuit should not exceed 205mm2. The connecting screw should be tightened and not loose.

serial number	Set current multiple	Action temporality			initial condition	Surrounding air temperature
one	one point zero five	<2h			Cold state begins	20±5℃
two	one point two	<2h			Hot state (sequential)
three	one point five	10A	<2min	≤32
		ten	<4min	>32
four	seven point two	10A	2s	≤32	cold state
		ten	4s	<32

JR36B series thermal overload relay

Setting current upper limit value A	>0≤8	>8≤12	>12≤20	>20≤25	>25≤32	>30≤50	>50≤65	>65≤85
Connecting wire cross-sectional area mm2	one	one point five	two point five	four	six	ten	sixteen	twenty-five
Setting current upper limit value A	>85≤115	>115≤150	>150≤175	>175≤225	>225≤250	>250≤275	>275≤350	>350≤400
Connecting wire cross-sectional area mm2	thirty-five	fifty	seventy	ninety-five	one hundred and twenty	one hundred and fifty	one hundred and eighty-five	two hundred and forty

Test current range (A)	copper busbar		copper cable
	Size mm	quantity	Cross sectional area mm2	quantity
400〈I≤500	30*5	two	one hundred and fifty	two
500〈I630	40*5	two	one hundred and fifty	two