Solid state relays and solid state relay heat sinks

1-125 amp solid state relays
up to 330 volts or 660 volts AC switching
Individual solid state relay hockey pucks or pre-assembled onto heat sinks

  • Third generation Maximum Surge Survival™ technology for superior performance
  • Internal, SCR thyristors and fourth generation DCB Direct Copper Bonding thermal optimization provide longer life than other solid state relays
  • Optically isolated for 4000 volt isolation
  • International green LED input status indicator and terminal numbers (L1, T1, A1, A2)
  • Clear safety cover included
  • 800 volt blocking voltage in the 3V models (very high voltage surge blocking)
  • 1200 volt blocking voltage in the 6V models (highest voltage surge blocking)
  • Ultra-Precise zero voltage turn-on to eliminate EMI noise, without the need for CE filters
  • Engineered internal snubber circuit for robust performance
  • Highest surge capability with the trademarked triple layer design feature to: attenuate surges AND then block surges AND then control the pass-through.
  • UL recognized, CSA, CE EN 60947-4-3 (the newest and most difficult international CE specification), all models up to 75 amps.
  • 76-125 amps = approvals pending. Note: the power terminals on "hockey puck" solid state relays are rated for one or two 8 AWG wires which limits the amperage. For larger wire installations, please visit the C Family of products.
  • See the data bulletins for complete specifications: 1-75 amp models, 90-125 amp models, or the new C Family DC control input models or AC control input models.
  • RoHS available in HDA-3V25. Other models are in RoHS transition.
  • CE Safety Specification: EN60947-4-3:2000 including amendment A1
  • CE Emissions Specification: EN60947-4-3:2000 Class A including amendment A1
  • CE Immunity Specification: EN60947-4-3:2000 including amendment A1
  • EMC Directive: 2004/108/EC
  • Low Voltage Directive: 2006/95/EC

solid state relay
solid state relay
Part Numbers: Pre-installed* on:
  Good
Heat Sink
Better
Heat Sink
Best*
Heat Sink
DC Control Input: SSR
only
Heatsk-
Din-1.6
Heatsk-
Din-1.0
Ultra
Power
Cooler™
HDA-3V25   up to 25A, 24-330V max, 4-32 VDC activated Buy Buy    
HDA-3V50   up to 50A, 24-330V max, 4-32 VDC activated Buy Buy Buy  
HDA-3V75   up to 75A, 24-330V max, 4-32 VDC activated Buy   Buy Buy
HDA-6V50   up to 50A, 24-660V max, 4-32 VDC activated Buy Buy Buy  
HDA-6V75   up to 75A, 24-660V max, 4-32 VDC activated Buy   Buy Buy
HDA-6V125  up to 125A, 24-660V max, 4-32 VDC activated. Buy     Buy
AC Control Input:        
HAA-3V25   up to 25A, 24-330V max, 100-280 VAC activated Buy Buy    
HAA-3V50   up to 50A, 24-330V max, 100-280 VAC activated Buy Buy Buy  
HAA-3V75   up to 75A, 24-330V max, 100-280 VAC activated Buy   Buy Buy
HAA-6V50   up to 50A, 24-660V max, 100-280 VAC activated Buy Buy Buy  
HAA-6V75   up to 75A, 24-660V max, 100-280 VAC activated Buy   Buy Buy
HAA-6V125*  up to 125A, 24-660V max, 100-280 VAC activated. Buy     Buy
* Pre-installed = Solid state relay + thermal transfer pad + 2 mounting screws + torqued to 20-25 inch pounds + the heat sink shown. For the fastest on site installations, using the pre-assembled packages is beneficial. Power-io can design other assemblies, contact us with your specifications. The Ultra Power Cooler™ is a small footprint, thermally engineered, fan assisted heat sink. Please provide 120 vac, 9 watts, power for the fan.

Purchase heat sinks, thermal pads, pre-installation options separately:    Parts page
Heat sink descriptions, multi-zone heat sinks, MOV options, and more.