JR56 Series Thermal Relay

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JR56 Series Thermal Relay

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1.Application

JR56 series thermal relay is used in the circuit of 50/60Hz, rated insulation voltage 660V,rated current 0.3-95A for protecting the phase break when the electric motor is overloaded. Therelay has different mechanism and temperature compensation. It can be plugged in CJX3 seriesAC contactor. The product conforms to IEC60947-4-1.

2.Motion Characteristic: Three-phase Balance Motion Time

No	Times of the setting current	Motion time			Start conidition	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			Heat state (Following the No.1 test)
4	7.2	10A	2s<Tp≤10s	≤63A	Cold state
4	7.2	10	4s<Tp≤10s	>63A	Cold state

3.Phase-losing Motion Characteristic

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

4.Specification

Type	Setting range (A)	For contactor
JR56-20	0.3~0.5	CJX3-10 CJX3-11 CJX3-12 CJX3-16 CJX3-18 CJX3-19 CJX3-25
	0.6~1
	1~1.6
	1.5~2.5
	2~3
	3~5
	4~6
	4.8~8

Type	Setting range (A)	For contactor
JR56-20	7.5~12
	12~18
	20~28
JR56-63	24~34	CJX3-35 CJX3-50 CJX3-65 CJX3-80
	25~40
	28~62
	48~80
	60~95