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JR28N Series Thermal Relay
1.Application
JR28N series thermal relay is suitable for using in the circuits rated voltage up to 660V, rated current 93A AC 50/60Hz, for over-current protection of AC motor. The relay has the differential mechanism and temperature compensation and can plug in CJX2N series AC contactor. The product conforms to IEC60947-4-1 stardand.
2.Motion Characteristic: Three-phase Balance Motion Time
No Times of the setting current(A) Motion time Start conidition Ambient temperature
1 1.05 >2h Cold state 205C
2 1.2 <2h Heat state (Following the No.1 test)
3 1.5 <4min
4 7.2 10A 2s<Tp10s 63A Cold state
10 4s<Tp10s >63A

3.Motion Characteristic: Three-phase Balance Motion Time
No Times of the setting current(A) Motion time Start condition Ambient temperature
Any two phases Another phase
1 1.0 0.9 >2h Cold state 205C
2 1.15 0 <2h Heat state (Following the No.1 test)

4.Specification
Type Number Setting range (A) For contactor
JR28N-25 D01 0.10~0.16 CJX2N-09~38
D02 0.16~0.25 CJX2N-09~38
D03 0.25~0.40 CJX2N-09~38
D04 0.40~0.63 CJX2N-09~38
D05 0.63~1 CJX2N-09~38
D06 1~1.7 CJX2N-09~38
D07 1.6~2.5 CJX2N-09~38
D08 2.5~4 CJX2N-09~38
D10 4~6 CJX2N-09~38
D12 5.5~8 CJX2N-09~38
D14 7~10 CJX2N-09~38
D16 9~13 CJX2N-09~38
D21 12~18 CJX2N-09~38
D22 16~24 CJX2N-09~38
D53 30~38 CJX2N-09~38
JR28N-36 2353 23~32 CJX2N-25~32
2355 30~40 CJX2N-25~32
JR28N-93 3322 17~25 CJX2N-40~95
3353 23~32 CJX2N-40~95
3355 30~40 CJX2N-40~95
3357 37~50 CJX2N-50~95
3359 48~65 CJX2N-50~95
3361 55~70 CJX2N-65~95
3363 63~80 CJX2N-65~95
3365 80~93 CJX2N-95