UNKR Series

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  • UNKR Series
  • UNKR Series
UNKR Series UNKR Series

UNKR series thermal relay is used in the circuit of 50/60Hz, rated insulation voltage 660V, ratedcurrent 0.1-85A for protecting the phase break when the electric motor is overloaded. The relay hasdifferent mechanism and temperature compensation. It can be plugged in UNKC series AC contactor.The product conforms to IEC60947-4-1.

NoTimes of the
setting current(A)
Motion timeStart conditionAmbient
temperature
11.05>2hCold state20±5°C
21.2<2hHeat state
31.5<4min(Following the
No.1 test)
47.210A2s<Tp≤10s≤63ACold state
10A4s<Tp≤10s>63A
No

Times of the setting current(A)

 

MotiontimeStart conditionAmbienttemperature

Any two phases

Another phase
11.00.9>2hCold state20±5°C
21.150<2hHeat state
(Following the
No.1 test)
RatingsTypeUNKR-22UNKR-40UNKR-85
NominaRangesRangesRanges
currentMin.Mid.Max.Min.Mid.Max.Min.Mid.Max.
 Rated current(A)0.140.10.140.16
0.210.160.210.25
0.330.250.330.4
0.520.40.520.63
0.820.630.581
1.311.31.6
2.11.62.12.5
3.32.53.34
5456456
6.556.5856.58
7.567.5967.59
8.578.51078.51078.510
11911139111391113
15121518121518121518
19161922161922161922
22182226182226
30243036243036
34283440283440
42344250
55455565
65546575
74637485
Element No.2 heatersStandardStandardStandard
3 heatersOptionOptionOption
Aux. Contact1NO 1NC1NO 1NC1NO 1NC
Reset typeAuto/ManuaAuto/ManuaAuto/Manua
Power consumption1.8VA/heater1.8VA/heater1.8VA/heater
Separate mounting unitAZ-22HAZ-40HAZ-85H
Other modelSLR30-22/3SLR30-40/3SLR30-85/3
SLR30-22SLR30-40SLR30-85
SLR30-22/LSLR30-40/LSLR30-85/L
Applied contactorsUNKC-9,12,18,22UNKC-32,40UNKC-50,65,75,85