Description

The 3950 DC Solid State Relay can be used to switch loads of up to 50A at 30VDC using the digital output from. e.g., a OUT1100_0 but also many other PhidgetInterfaceKit's that have a digital output. 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.

Connection

This solid state relay can be controlled with Phidget digital outputs. For more details, see the Connection & Compatibility tab.

Comes Packaged with

A Protective Relay Cover
A Heat Transfer Pad
A Diode

Product Specifications

Board
Controlled By	Digital Output (5V)
Electrical Properties
Relay Output Type	MOSFET
Isolation Method	Photoelectric
Dielectric Strength	2.5 kV AC
Control Voltage Min	4 V DC
Control Voltage Max	32 V DC
Load Voltage Max (DC)	30 V DC
Load Current Min	20 mA
Load Current Max (DC)	50 A
Load Surge Current	120 A
Turn-on Time Max	1 ms
Turn-off Time Max	0.5 ms
Physical Properties
Length	58 mm
Width	45 mm
Height	25 mm
Operating Temperature Min	-30 °C
Operating Temperature Max	80 °C
Other Properties
Manufacturer Part Number	KS33/D-30D50-L
Customs Information
Canadian HS Export Code	8536.41.00
American HTS Import Code	8536.41.00.50
Country of Origin	CN (China)