Solid state relays, ssr, and scr relay i/o


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.

Part Numbers:	Pre-installed* on:
	Good Heat Sink	Better Heat Sink	Best* Heat Sink
DC Control Input:	Heatsk- Din-1.6	Heatsk- Din-1.0	Ultra Power Cooler™
HDA-3V25 up to 25A, 24-330V max, 4-32 VDC activated
HDA-3V50 up to 50A, 24-330V max, 4-32 VDC activated
HDA-3V75 up to 75A, 24-330V max, 4-32 VDC activated
HDA-6V50 up to 50A, 24-660V max, 4-32 VDC activated
HDA-6V75 up to 75A, 24-660V max, 4-32 VDC activated
HDA-6V125 up to 125A, 24-660V max, 4-32 VDC activated. Hint: if you are buying more than one unit, it is more cost effective to buy the dual channel: Power-io's CZ2H-IAC2, shown below.
* Upgrade to: CZ2H-IDC2 as an alternative to the HDA-6V125. Two channels of up to 100A continuous on each, 24-575V max, 4-32 VDC activated. The C family is a complete assembly using large 2-8 AWG power connections, built-in additional surge survivability, SCR ALERT Alarm and more. Highest installation density. More information is online at: Power-io's C Family of solid state contactors
AC Control Input:
HAA-3V25 up to 25A, 24-330V max, 100-280 VAC activated
HAA-3V50 up to 50A, 24-330V max, 100-280 VAC activated
HAA-3V75 up to 75A, 24-330V max, 100-280 VAC activated
HAA-6V50 up to 50A, 24-660V max, 100-280 VAC activated
HAA-6V75 up to 75A, 24-660V max, 100-280 VAC activated
HAA-6V125* up to 125A, 24-660V max, 100-280 VAC activated. Hint: if you are buying more than one unit, it is more cost effective to buy the dual channel: Power-io's CZ2H-IAC2, shown below.
* Upgrade to: CZ2H-IAC2 as an alternative to the HAA-6V125. Two channels of up to 100A continuous on each, 24-575V max, 100-280 VAC activated. The C family is a complete assembly using large 2-8 AWG power connections, built-in additional surge survivability, and more. Highest installation density, only 1.6 inches per channel. More information is online at: Power-io's C Family of solid state contactors
* 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.

For a printable copy of the data bulletin including the complete, in-depth product specifications, engineering details, and thermal calculations: solid state relay data bulletin for 1-75 amp models or solid state relay data bulletin for 1-125 amp models or Power-io's C Family of solid state contactors.
For full dimensional information and label examples: Power-io solid state relay dimensions and labels
For a zoomed in photo of the product: Solid state relay and the solid state relay cover
It is important to anticipate three installation conditions: avoid over-amperage, over-voltage (surges), or over-temperature. See: solid-state-relay-extended-life.htm

Solid state relays and solid state relay heat sinks

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