Thermal Overload Relay
LR1-D

LR1-D

Model Reference

thermal-relay-lr1d0925LR1-D 09~25A
thermal-relay-lr1d4080LR1-D 40~80A
    thermal-relay-lr1d-code

Application

  • LR1-D series thermal relay is suitable for using in the circuits rated voltage up to 660V, ratedcurrent 80A, AC 50/60Hz, for over-current protection of AC motor.
  • The relay has the differentialmechanism and temperature compensation and can plug in LC1-D series AC contactor. Theproduct conforms to IEC60947-4-1 stardand.

Motion Characteristic: Three-phase Balance Motion Time

No Times of the setting current Motion time Start condition Ambient temperature
1 1.05 >2h Cold state 20±5oC
2 1.2 <2h Heat state(Following the No.1 test)
3 1.5 <4min
4 7.2 10A 2s<Tp≤10s ≤63A Cold state
10 4s<Tp≤10s >63A

Phase-losing Motion Characteristic

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

Technical Data

Type Number Setting range (A) Applied Contactor
LR1-D 09301 0.1~0.16 LC1-D-09~25
09302 0.16~0.25 LC1-D-09~25
09303 0.25~0.4 LC1-D-09~25
09304 0.4~0.63 LC1-D-09~25
09305 0.63~1 LC1-D-09~25
09306 1~1.6 LC1-D-09~25
09307 1.6~2.5 LC1-D-09~25
09308 2.5~4 LC1-D-09~25
09310 4~6 LC1-D-09~25
09312 5.5~8 LC1-D-09~25
09314 7~10 LC1-D-09~25
12316 10~13 LC1-D-09~25
16321 13~18 LC1-D-09~25
25322 18~25 LC1-D-09~25
40353 23~32 LC1-D-09~25
40355 30~40 LC1-D-40, 50, 63
63357 38~50 LC1-D-40, 50, 63
63359 48~57 LC1-D-40, 50, 63
63361 57~66 LC1-D-40, 50, 63
80363 63~80 LC1-D-40, 50, 63

Dimensioned
LR1-D 09 ~ 25A F
LR1-D 09 ~ 25A Z
LR1-D 40 ~ 80A Z
LR1-D 40 ~ 80A F

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