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

Model: 005.007.004
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.
Weight: 0.175 kg
Available: to order
$5.80
Qty

Technical data

Main circuit characteristics
Rated insulation voltage Ui690V
Rated impulse withstand voltage Uimp6kV
Tripping class10A
Current setting range0.4...0.63A
Conductors cross-sectionflexible cable without cable end1×1,5...10 mm2
flexible cable with cable end1×1...4 mm2
rigid cable without cable end1×1...6 mm2
Tightening torque1,85 N·m
Auxiliary contacts characteristics
Conventional thermal current5A
Max power of the contactor coil24V AC100VA
48V AC200VA
110V AC400VA
220V AC600VA
380V AC600VA
600V AC600VA
Short-circuit protectionfuse gG 5A
Conductors cross-sectionflexible cable without cable end1×1...2,5 mm2/2×1...2,5 mm2
flexible cable with cable end1×1...2,5 mm2/2×1...2,5 mm2
rigid cable without cable end1×1...2,5 mm2/2×1...2,5 mm2
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

Range of JR28 series thermal relays

TypeNumberCurrent setting rangeFor contactor
JR28-2513010,1...0,16ACJX2-D09
13020,16...0,25ACJX2-D09
13030,25...0,4ACJX2-D09
13040,4...0,63ACJX2-D09
13050,63...1ACJX2-D09
13061...1,6ACJX2-D09
13071,6...2,5ACJX2-D09
13082,5...4ACJX2-D09
13104...6ACJX2-D09
13125,5...8ACJX2-D09
13147...10ACJX2-D12
13169...13ACJX2-D18
132112...18ACJX2-D18
132217...25ACJX2-D25
JR28-36235323...32ACJX2-D32
235530...40ACJX2-D40
JR28-93332217...25ACJX2-D25
335323...32ACJX2-D32
335530...40ACJX2-D40
335737...50ACJX2-D50
335948...65ACJX2-D65
336155...70ACJX2-D80
336363...80ACJX2-D80
336580...93ACJX2-D95

JR28-25 relay dimensions


Relay dimensions

Auxiliaries and accessories

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