I was fortunate enough to have learned this lesson early in my career thanks to a “kind” electrician who literally smacked me upside the head on a pre-wire, and asked “Are you stupid or something?” ...
Introduced as the industry’s smallest dual ac and dual dc power input modules, the Dual AC and Dual DC modules are designed for use in IEEE 1101.10/11-compliant systems. Both modules are hot swappable ...