3951_0 DC Solid State Relay - 50V 80A
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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||MOSFET|
|Dielectric Strength||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||20 mA|
|Load Current Max (DC)||20 A|
|Load Current Max (With 3955 Heatsink)||40 A|
|Load Current Max (With 3956 Heatsink)||80 A|
|Load Surge Current||200 A|
|Turn-on Time Max||1 ms|
|Turn-off Time Max||0.5 ms|
|Operating Temperature Min||-30 °C|
|Operating Temperature Max||80 °C|
|Manufacturer Part Number||HFS33/D-50D80M|