Power Switch Tail II

A power cord that switches 120vac (up to 15 amps) with a dc control voltage of 3vdc @ 3ma to 12vdc @ 30ma


"The easiest way to control an AC device with an Arduino, Raspberry Pi, Beaglebone or any other DIY controller." 


No exposed 120vac voltages and no dangerous 120vac wiring required.

Plugs into standard 120vac 3-prong household outlets, power strips, and extension cords.

Eliminates the exposure of hazardous voltages in DIY projects, classrooms, and on development workbenches.

No special 120vac wiring when deploying new products and custom solutions.

Can be installed by non-technical users: Instruction sheet for PN 80135 or PN 80135-NC

5300vrms isolation from the 120vac circuit. Indoor use only.


Easily inserts between power source and corded electrical devices.

Switches up to 15 amps with a control signal as low as 3vdc at 3ma. Ideal for use with battery operated controllers.

Connects directly to Arduino, Raspberry Pi, Beaglebone or other 3.3 or 5 volt MCU without the need for driver transistor or buffer circuit.

Two-wire control signal connects to terminal block (30-14 AWG) and a separate power supply is not required.

LED indicator shows status of control signal.

Connect input plug to wall outlet or when using multiple units, to a power strip.

Connect output receptacle to a single powered device or to a power strip to control multiple loads.

Output devices may be 3-prong or 2-prong appliances or lights.

Convenient safety ground connection available for grounding external control circuit.   

PN 80135-NC shipped normally closed but can be rewired for either NO or NC.


Purchase only what you need. Use one unit for each controlled circuit and add units as required.

Each unit comes complete and connects to all standard 120vac 3-prong wiring devices.

Eliminate the need for electrician fees or electrical wiring permits.


AC input: NEMA 5-15P Plug, standard 120vac with ground.

AC output: NEMA 5-15R Receptacle, standard 120vac with ground.

Switching capacity: 15amps @ 120vac.

Life expectancy: 100,000 operations @ 15 amps, 125vac, resistive

DC input: 3-12vdc (3-30ma), terminal block accepts #30-14 AWG wire.

Operate times: 15 ms max actuate, 10 ms max release.

DC to ac circuit isolation: 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 on 2" x 2.5" grid.

Power Switch Tail II

  • Product Code: PST2
  • Availability: In Stock
  • $29.95

Tags: power, switch, tail, accessories