SHINING  HS  Series Heat Sink - Solid State Relay Heat Sink - SSR Heat Sink   is including:

HS-60050 : For One (1) piece of Single Phase Solid State Relay ( DA / AA / VA / DD Series )

HS-60100 :  For Two (2) piece of Single Phase Solid State Relay ( DA / AA / VA / DD Series )

HS-60150 :  For Three (3) piece of Single Phase Solid State Relay ( DA / AA / VA / DD Series )

HS-60200 :  For Four (4) piece of Single Phase Solid State Relay ( DA / AA / VA / DD Series )

HS-80050 :  For One (1) piece of Three  Phase Solid State Relay ( DA  /  AA  Series )

HS-80100 :  For Two (2) piece of Three  Phase Solid State Relay  ( DA  /  AA  Series )

HS-80150 :  For Three (3) piece of Three  Phase Solid State Relay  ( DA  /  AA  Series )

HS-80200 :  For Four (4) piece of Three  Phase Solid State Relay  ( DA  /  AA  Series )

For Heat Dissipation of Solid State Relay (SSR) , you can install Solid State Relay with Cooling Fan on the Heat Sink . Heat Sink and Cooling Fan is optional parts for Solid State Relay .

Suggestion: 1. 10A Solid State Relay: Heat Sink and Cooling Fan  is not necessary.

                     2. 25A Solid State Relay: Assembly with this Heat Sink . Cooling Fan is not necessary.

                     3. 40A Solid State Relay:  Assembly with this Heat Sink with Cooling Fan .