A safe way for Makers and DiY'ers to control mains ac power with a microcontroller.


PN 85010: $29.99 ea
In Stock

PowerSSR and ZeroCross Tails in one power cord for phase-controlled power to 120vac non-inductive loads with a microcontroller.

  • Combines the features of our PowerSSR and ZeroCross Tail s into one power cord device.
  • PowerSSR function provides fast solid-state triac switching suitable for ac dimmers and motor speed control. Arduino sample sketch or variable dimmer . Video demo.
  • ZeroCross Tail function provides zero-crossing detector with open collector output adaptable (external resistor required) to microcontroller logic level.
  • Control loads up to 450 watts, non-inductive, with a 3vdc (3ma) to 12vdc (30ma) steady or pulsed control signal.
  • Simple 3-wire low-voltage connections: PSSR in, Common, ZeroCross out. See  instructions .
  • Local LED indicator shows status of control voltage.
  • No exposed 120vac voltages and no dangerous 120vac wiring required. Plugs into standard NEMA 5-15R/P 120vac 3/2 prong household outlets, power strips and extension cords.

  • AC input: NEMA 5-15P Plug, standard 120vac with ground.
  • AC output: NEMA 5-15R Receptacle, standard 120vac with ground.
  • Load capacity: 120vac, 450 watts maximum continuous load, non-inductive.
  • Switching device: Solid-state triac, indefinite life expectancy.
  • DC input: 3vdc @3ma to 12vdc @ 30ma, terminal block accepts #14-30 AWG wire.
  • ZeroCross output: Open collector. Requires a resistor connected to the supply voltage of the microcontroller. Not to exceed 30vdc. Positive going sync pulse to supplied voltage.
  • Operate times: Suitable for 50/60hz phase control of incandescent and LED light strings.
  • DC to ac circuit isolation: Optically isolated to 5300Vrms. 
  • Indicator: LED indicates when dc side is energized.
  • Protection: AC side protected with 150vac MOV; DC side is transient free.
  • Mounting: Two #6 screws or free standing.
  • Environment: Indoor use only.

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Our liability is limited to the purchase price of this product. By using this product you agree that PowerSwitchTail.com, LLC can not be held liable for any damages or injuries resulting from use. misuse, or repair. This product is for indoor use only.