Thermal overload relays

 

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LRD series thermal relay

LR1-DModel ReferenceLRD13LRD23LRD33ApplicationLRD series thermal relay is suitable for using in the circuits rated voltage up to 660V, ratedcurrent 93A AC 50/60Hz, for over-current protection of AC motor.The relay has the differential mechanism and temperature compensation and can plug in LC1-D seri
Product Details

LR1-D

Model Reference

LRD13LRD13

LRD23LRD23

LRD33LRD33

Application

Motion Characteristic: Three-phase Balance Motion Time

NoTimes of the setting currentMotion timeStart coniditionAmbient temperature
11.05>2hCold state20±5°C
21.2<2hHeat state (Following the No.1 test)
31.5<4min
47.210A2s<Tp≤10s≤63ACold state
104s<Tp≤10s>63A

Phase-losing Motion Characteristic

NoTimes of the setting currentMotion timeStart conditionAmbient temperature
Any two phasesAnother phase
11.00.9>2hCold state20±5oC
21.150<2hHeat state(Following the No.1 test)

Technical Data

TypeNumberSetting range (A)Applied Contactor
LRD13D010.10~0.16LC1-D-09~38
D020.16~0.25LC1-D-09~38
D030.25~0.40LC1-D-09~38
D040.40~0.63LC1-D-09~38
D050.63~1LC1-D-09~38
D061~1.7LC1-D-09~38
D071.6~2.5LC1-D-09~38
D082.5~4LC1-D-09~38
D104~6LC1-D-09~38
D125.5~8LC1-D-09~38
D147~10LC1-D-09~38
D169~13LC1-D-09~38
D2112~18LC1-D-09~38
D2216~24LC1-D-09~38
D3530~38LC1-D-09~38
LRD23235323~32LC1-D-25~32
235530~40LC1-D-25~32
LRD33332217~25LC1-D-40~95
335323~32LC1-D-40~95
335530~40LC1-D-40~95
335737~50LC1-D-50~95
335948~65LC1-D-50~95
336155~70LC1-D-65~95
336363~80LC1-D-65~95
336580~93LC1-D-95

Dimensioned

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LRD13

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LRD23

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LRD33


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