- From the manufacturer:

- "The PDC SSS-86 Solid State Loadswitch is a tri-pack solid state relay package designed specifically for the Traffic Control Industry. This unit meets NEMA specification TS1-1983, section 5. Each switch will turn it’s rated load ON or OFF within 10 deg. of the first zero cross-over point & within 5 deg. on succeeding alterations randomly timed input command signal."

- General Characteristics:

Load voltage: 120 VAC

 current (max):15.0 Amps (Tungsten Filament Load)

Control Signal voltage: +24VDC

 current: 20.0 MA (max)

Switching 1st alternation after: +10 Degrees of line voltage at the zero  signal is applied. crossover point.

 Succeeding alterations: +5 Degrees of line voltage at the zero crossover point.

Off State dv/dt: 100 V per microsecond

 line to load resistance: 15 K Ohms Min

 leakage current: less than 20 MA

Isolation voltage: 2500 VDC Min

 resistance: 10 Meg Ohms Min

Surge Current one cycle.: 175 Amps RMS Min

 one second:40 Amps RMS Min

Life operations: 30 million Min

Mechanical length: 8.40 inches

 width: 1.74 inches

 height: 4.185 inches

 weight: 1.135 LBS 

- This item is used.