3951_0 DC Solid State Relay - 50V 80A
The 3951 DC Solid State Relay can be used to switch loads of up to 80A at 50VDC using the digital output from a 1012 - PhidgetInterfaceKit 0/16/16.
- A Protective Relay Cover
- A Heat Transfer Pad
- A Diode
The Relay comes with an optional protective cover to protect people from touching the exposed high power wires, and a diode to protect your SSR from harmful transients.
All wires connect to this relay by screw terminals.
Have a look at the relay's characteristic curve in the Data Sheet to decide if you need a heat sink. Without a heat sink, the maximum current that can be handled by this relay is 20A up to an ambient temperature of 40°C.
In order to be able to switch currents of up to 80A, you have to use the 3956 - Heat Sink
This relay connects to the 1012 - PhidgetInterfaceKit 0/16/16.
Just connect the positive control terminal of the SSR to the +5V terminal on the 1012, and connect the negative terminal to an open collector digital output on the 1012.
|Relay Output Type
|2.5 kV AC
|Control Voltage Min
|3 V DC
|Control Voltage Max
|32 V DC
|Load Voltage Max (DC)
|50 V DC
|Load Current Min
|Load Current Max (DC)
|Load Current Max (With 3955 Heatsink)
|Load Current Max (With 3956 Heatsink)
|Load Surge Current
|Turn-on Time Max
|Turn-off Time Max
|Operating Temperature Min
|Operating Temperature Max
|Manufacturer Part Number