Blackburn PSB4359-1 4-POS. SETSCREW BAR W/MOUNT. HOLES

The PSB4359-1 is a 4-position set screw connector bus bar, used to split or join conductors at a single point instead of making multiple splices. Conductors land in the bar's ports and are secured with set screws, so no crimping tool or compression die is needed. Blackburn supplies it with mounting holes so the bar can be fastened down inside an enclosure or panel.

Four. It is a 4-position bar, meaning four set screw ports, so one feed and three taps, or any other split that fits within four terminations. If your job needs more than four landings you need a bar with a higher position count, not this one.

No. It's a set screw type bar, so conductors are clamped mechanically with a screwdriver or hex driver rather than crimped. That makes it workable for electricians and maintenance techs doing field taps without carrying a hydraulic or battery crimper.

Aluminum. Aluminum-bodied set screw bars are dual rated in general use for both copper and aluminum conductors, but confirm the conductor range stamped on the bar itself before you land wire, since the bar body material is what's published here.

The bar comes with mounting holes, so it fastens down to a panel wall, back pan, or standoff insulator rather than floating on the conductors. Mounting hardware and any insulating base or cover are separate items and should be ordered with it.

Each. The selling unit is one bar, so order one per tap point. Contractors standardizing a panel build should count the landings they need and order accordingly.

Blackburn PSB4359-1. That is the manufacturer part number to quote or cross-reference when specifying the 4-position set screw bar with mounting holes.