Electric drives require effective protection against overloads and short circuits. Both phenomena cause motor disruption and create a risk of damage to the motor. This could lead to a potentially ...

These breakers come in two versions — one with magnetic trip element for short-circuit protection and the other with thermal and magnetic trip elements for overload and short-circuit protection. They ...

The new Allen-Bradley Bulletin 140MT motor protection circuit breakers from Rockwell Automation offer enhanced Type F combination motor controller ratings when used with Bulletin 100-C and 100-E ...

Rockwell Automation’s Branch Motor Controls and Protection Solutions offer a range of combinations and accessories for applications that require smart industrial control. Electric motor starters ...

Salzer Electronics Limited on Thursday has received a patent for its Motor Protection Circuit Breaker (MPCB) with increased air gap. This patent is for a particular design in MPCB. Salzer is the only ...

Teridian Semiconductor has chosen as its first entry into the industrial automation and control market an electronic trip unit system-on-chip for industrial motor circuit protection and circuit ...

Q. What is the Code rule for sizing short circuit and ground fault protection for a single motor branch circuit? A. The motor branch circuit, short circuit and ground fault protective device must ...

Requiring only a handful of inexpensive components, the circuit breaker in Figure 1 responds to both overcurrent- and overvoltage-fault conditions. At the heart of the circuit, D 2, an adjustable, ...

Suppose you have a 60A breaker supplying a branch circuit. What size conductors do you need for that circuit? One table in the NEC says No. 8; another says No. 4. Which one is right? What does the ...