Article 210 contains the requirements for conductor sizing, conductor identification, overcurrent protection, and GFCI and AFCI protection of branch circuits. It also contains requirements for ...

In Part 1, we looked at how to size a branch circuit and walked through a simple example. So if you’re sizing a feeder, why don’t you do it the same way? Except in cases where a feeder is also ...

I continue to be surprised by how many equipment designers are confused by UL circuit protection standards. In trying to meet conflicting standards, engineers may actually decrease the level of ...

The 2026 National Electrical Code clarifies rules for 10 amp branch circuits, conductor sizes and permitted uses for LED ...

Said to be ideal for applications requiring branch circuit protection that comply with UL and CSA standards, the Bulletin 1492-MC circuit breakers may be used to protect wiring and associated ...

My introduction to circuit protection came at the tender age of eight. Being a curious lad with an inventive – and apparently self-destructive – bent, I decided to make my mother a lamp. I put a hose ...

The new line of Allen-Bradley Bulletin 1492-MC circuit breakers meet North American electrical standards and conserve panel space to provide advanced branch circuit protection. The 1492-MC circuit ...

Middletown, Pa. — Touch-safe fuse terminal blocks from Phoenix Contact accept Class CC and Class J fuses to meet National Electrical Code requirements for branch circuit protection. UL-Listed for ...

Wesgarde is highlighting the Optifuse 641, 642 and 643 mid-amp circuit breakers for large vehicle applications, offering ...

The usual way of preventing a small motor from drawing too much current is to install overcurrent protection in the form of a circuit breaker or some other kind of limiter. But installations that ...

TO BE READ BY ALL ELECTROSCHEMATICS ENTHUSIASTS! Much needs to be said about this oft neglected subject. We would never even think of connecting the utility mains to our house without proper circuit ...