|3950_0 - DC Solid State Relay - 30V 50A|
- Connects to a Digital Output
- Switches medium power DC loads
- 0 VDC - 30 VDC Load
- 50A Current Rating
- Connects to any device with a Digital Output.
The 3950 DC Solid State Relay can be used to switch loads of up to 50A at 30VDC using the digital output from a Phidget I/O board. 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. If you are switching a high power load or find the relay is getting hot, please consider a heat sink. Heat sinks 3955 and 3956 are designed for use with this relay.
|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)||30 V DC|
|Load Current Min||20 mA|
|Load Current Max (DC)||18 A|
|Load Current Max (With 3955 Heatsink)||50 A|
|Load Current Max (With 3956 Heatsink)||50 A|
|Load Surge Current||120 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-30D50M|
Have a look at the Data Sheet for a complete set of specifications.
- A Protective Relay Cover
- A Heat Transfer Pad
- A Diode
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 18A up to an ambient temperature of 40°C.
To switch currents between 18 and 50A, you have to use the 3955 - Heat Sink.
This relay connects to any device with a Digital Output.
It should be connected as shown below.