Industrial Control & OEM What do SWD and HID rating signify for circuit breakers? How do I wire multiple start/stop pushbutton stations to a motor starter? What is the blinking light on my Electronic Trip unit? Why is my coil making a humming noise? What can cause an SCR failure on a soft starter? Residential & Distribution What is the difference between BR and CH type breakers? What is the difference between Type 1 and Type 2 Surge Protective Devices? What is the difference between CTL and non-CTL breakers? What do SWD and HID rating signify for circuit breakers? What is the color scheme of the AFCI, GFCI, and AFGF residential breakers?

Automation Can't connect to HMi using Windows 7/10, failed USB port COM error easyRelay user manuals and programming guides (easy500, easy700, easy800, MFD) How can I obtain D100 Cutler Hammer PLC documents? Can I download a free version of easySoft? Where can I find the manual for a Durant Ambassador Series counter ( 5760X-4XX )? Drives How do I fix an F41 IGBT Over Temperature Fault code for a DG1 drive? How do I fix an F7 (Saturation Fault) code for a 9000X Series drive? How do I fix an F51 (Ext Fault) code for a 9000X Series drive? How do I fix an F11 (Output Phase Fault) code for a 9000X Series drive? How do I fix an F65 Replace Fan Faultcode for a DG1 drive?

Sensors What are positive opening contacts? What is a solenoid safety interlock switch? What is a zero pressure accumulation sensor ? How does a capacitive proximity sensor work? How does a photoelectric sensor work?