Heatsink for SSR solid state relay

  • Categories:Solid State Relay
  • MOQ:1
  • Brand:Trihero
  • FOB Port:Shanghai port, Ningbo port
  • Terms of Payment:Western Union, T/T, Paypal
  • Delivery Time:7 Working Days

Heatsinks are designed to remove heat generated during operation of semiconductor devices, in this case, the solid-state relay.

Heatsinks must be used under constant load over 5A. Otherwise, overheating will make the possible failure of SSR. Stated nominal current relays is capable of switching at a temperature not exceeding 40 ° C. With increasing temperature, decreasing its relay throughput rate of 20-25% per 10 ° C. At temperatures ≈80ºC its current capacity is reduced to zero and as a consequence the failure. To avoid overheating of the relay, it is necessary to install the cooling radiator.

In the selection of heatsinks to consider the factors influencing the cooling, such as the place of installation, ambient temperature, air circulation, the load on the solid-state relay. In some cases, for more efficient cooling (high air temperature, installation relay in a closed cabinet and so on), have to use a larger heat sink and install a fan to force the removal of heat.

Heatsinks should be installed vertically so that nothing prevented the natural circulation of air along the heatsink. Use of thermal conductive paste enhances heat transfer from the relay on the heatsink, but with the proviso that it is applied very thin (tens of microns) to fill cracks and clearances.

Technical specifications:

SSR 1 phase SYDH 1 phase SYDM 3-phase 
SYTH,SYTR
1 SSR 2 SSRs 3 SSRs 1 SSR 2 SSRs 3 SSRs
Load current(A) 10 I-50
D-74 
W-70 
W-100
H-150 
Y-150
H-150 
Y-150
H-150 
Y-150
20
40 D-74 
W-70 
W-100
H-150** 
Y-150
60 W-100
H-150 
Y-150
H-150** 
Y-150
Y-150 H-150 
Y-80 
Y-150
Y-150 Y-150 H-150** 
Y-150
80 H-150 
Y-150
Y-150 Y-150
100 Y-150** Y-150** Y-150** Y-150**
120 H-150** 
Y-150
H-150** 
Y-80 ** 
Y-150
Y-150**
150 Y-150

** = with fan

The load current is for T <40 °C. At T> 40 °C and / or installation of the relay in the closet to choose the heat sink for the load current increased 1.5-2 times, and use a fan.

Model DIN-Rail mounting base picture
Matched relay Single phase 1pcs x SYDH Heatsink for SSR 0
Max. current ≤5А
Dimensions 14х80х45mm
Weight 60g
Model I-50 picture
Matched relay Single phase 1pcs x SYDH Heatsink for SSR 2
Max. current ≤20А
Dimensions 82х52х50mm
Weight 110g
Model D-74 picture
Matched relay Single phase 1pcs x SYDH Heatsink for SSR 3
Max. current ≤40А
Dimensions 74х48х50mm
Weight 280g
Model W-70 picture
Matched relay Single phase 1pcs x SYDH Heatsink for SSR 4
Max. current ≤40А
Dimensions 70х100х50mm
Weight 230г
Model W-100 picture
Matched relay Single phase 1pcs x SYDH Heatsink for SSR 5
Max. current ≤60А
Dimensions 100х100х50mm
Weight 380g
Model H-150 picture
Matched relay 1Ф: 3pcs x SYDH or 1pcs x SYDM
3Ф: 1pcs x SYTH or 1pcs x SYTR
Heatsink for SSR 6
Max. current ≤40А
Dimensions 150х100х80mm
Weight 850g
Installation of fan 85x85mm
Model Y-80 picture
Matched relay 1Ф: 1pcs x SYDH or 1pcs x SYDM Heatsink for SSR 7
Max. current ≤100А
Dimensions 80х135х125mm
Weight 1150g
Installation of fan 120x120mm
Model Y-150 picture
Matched relay 1Ф: 3pcs x SYDH or 3pcs x SYDM 
3Ф: 1pcs x SYTH or 1pcs x SYTR
Heatsink for SSR 8
Max. current ≤80А
Dimensions 150х135х125mm
Weight 2300g
Installation of fan 120x120mm
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