The Beau 387200204 is a 4-circuit barrier strip in the 38720 series, rated 15 A per circuit at 300 V with a 0.375" (9.53 mm) pitch and a flange for chassis or panel mounting.
What the ratings mean
The 15 A current rating sets the load ceiling per circuit — well above typical IEC Class 2 control-circuit limits, so the voltage rating of 300 V, not the current, is what constrains the application. For any load that sits below 300 V AC/DC, the 15 A figure is the governing limit. Wire gauge range of 14–22 AWG. The terminal screw clamps the full conductor cross-section directly — no ferrule required for solid wire at these sizes, though a ferruled stranded termination is cleaner in a vibration environment. The flange is the mechanical anchor. Without it, the block floats in the enclosure; with it, the assembly bolts to the panel face and stays put under wire bundle load and maintenance handling. The dual-wall (2-wall) barrier construction adds dielectric separation between adjacent circuits — relevant when the block sits in a space where contamination or condensation could reduce creepage. Operating temperature range of –40°C to 100°C covers cold-store equipment and hot-side cabinet mounting. The UL94 V-0 housing material rating means the block self-extinguishes if a fault causes direct flame contact — the panel wiring specification often requires this in industrial enclosures regardless of the block's own current rating. Terminal screw finish is zinc with clear chromate — corrosion-resistant plating suited to indoor industrial environments. If the cabinet is wash-down or outdoor, a stainless-steel screw option or anti-corrosion conformal coating over the termination area is worth specifying separately.
Where this class is used
Barrier strips of this form factor are the load-side junction point inside motor-control cabinets, VFD enclosures, and industrial power distribution panels — anywhere a panel-builder needs a reusable field-wiring point that survives the assembly process and stays readable in service. The screw termination is preferred where a maintenance technician needs to disconnect a circuit without a tool change.