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Thermal Overload Relay JR28-25 0.4...0.63A

  • Model: 005.007.004
Thermal Overload Relay JR28-25 0.4...0.63A
Thermal overload relay JR28-25 with setting current 0.4...0.63A is suitable for overcurrent and phase failure protection of AC motors with rated voltage up to 660VAC.
Can be used with contactor CJX2-D09.
The relay has the differential mechanism and temperature compensation.
The product conforms to IEC 60947-4-1 standard.
$7.97
 pcs

Technical data

Main circuit characteristics
Rated insulation voltage Ui690V
Rated impulse withstand voltage Uimp6kV
Tripping class10A
Current setting range0.4...0.63A
Conductors cross-section1×1,5...10 mm2 flexible cable without cable end
1×1...4 mm2 flexible cable with cable end
1×1...6 mm2 rigid cable without cable end
Tightening torque1,85 N·m
Auxiliary contacts characteristics
Conventional thermal current5A
Max power of the contactor coil100VA at 24V AC
200VA at 48V AC
400VA at 110V AC
600VA at 220V AC
600VA at 380V AC
600VA at 600V AC
Short-circuit protectionfuse gG 5A
Conductors cross-section1×1...2,5 mm2/2×1...2,5 mm2 flexible cable without cable end
1×1...2,5 mm2/2×1...2,5 mm2 flexible cable with cable end
1×1...2,5 mm2/2×1...2,5 mm2 rigid cable without cable end
Tightening torque1,2 N·m
Environmental characteristics
Degree of protectionIP2X
Operating temperature-30°C...+55°C
Storage temperature-60°C...+70°C

Protection properties

TestSeries No.I/InOperating time, TpStart condition
Overload protection11,05> 2hCold state
21,2< 2hHeat state following the No.1 test
31,5< 4minHeat state following the No.1 test
47,22s<Tp≤10sCold state
Phase failure protection5any 2 phasesanother phase> 2hCold state
1,00,9
61,150< 2hHeat state following the No.5 test

JR28-25 relay dimensions


Thermal overload relay JR28-25 dimensions

Range of JR28 series thermal relays

Type Number Current setting range For contactor
JR28-25 1301 0,1...0,16А CJX2-D09
1302 0,16...0,25А CJX2-D09
1303 0,25...0,4А CJX2-D09
1304 0,4...0,63А CJX2-D09
1305 0,63...1А CJX2-D09
1306 1...1,6А CJX2-D09
1307 1,6...2,5А CJX2-D09
1308 2,5...4А CJX2-D09
1310 4...6А CJX2-D09
1312 5,5...8А CJX2-D09
1314 7...10А CJX2-D12
1316 9...13А CJX2-D18
1321 12...18А CJX2-D18
1322 17...25А CJX2-D25
JR28-36 2353 23...32А CJX2-D32
2355 30...40А CJX2-D40
JR28-93 3322 17...25А CJX2-D25
3353 23...32А CJX2-D32
3355 30...40А CJX2-D40
3357 37...50А CJX2-D50
3359 48...65А CJX2-D65
3361 55...70А CJX2-D80
3363 63...80А CJX2-D80
3365 80...93А CJX2-D95
Questions
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