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Power distribution blocks manage power wiring and branching, as well as provide tap-off points. Edison power distribution blocks, in open or finger-safe styles, provide a high short-circuit current rating, and are available in a range of pole options and amperage ratings.
Use Edison Finger-safe Power Distribution Blocks to manage your power distribution needs, from splitting primary power circuits
into a variety of branch circuits to providing a fixed junction tap-off point.
UL 1953 Listed
Modular design to select and configure the number of poles required by each application
Engineered to allow copper conductors and maintain an SCCR rating of 200kA
The perfect solution to todays power circuit wiring requirements
Fully enclosed block for touch-safe isolation of live parts
IP20 rating under specific conditions
Integrated DIN-rail or direct panel mounting. (Panel mount only for EPDB306 and EPDB702)
Captive termination screws cannot be lost
Used in UL508A panels for both feeder and branch circuit applications
Suitable for both factory and field wiring
Tin-plated aluminum connectors suitable for copper conductors
Finger-safe power terminal blocks start at
Short-Circuit Current Rated (SCCR) Power Distribution Blocks
We offer distinctly different styles of short-circuit current rated (SCCR) power distribution blocks (PDBs) and terminal blocks (TBs) to
match different application needs. The differences are whether the power distribution blocks are enclosed or not, and whether they are UL1953
Listed PDBs or UL1059 Recognized TBs, which have different minimum spacing requirements.
Why is this important?
Assembly short-circuit current ratings (SCCRs) are now required in the 2005 NECŪ and UL508A Listed Industrial Control Panels.
Marking the SCCR on Industrial Control Panels (NECŪ 409.110), Industrial Machinery Electrical Panels (NECŪ 670.3(A)), and HVAC
equipment (NECŪ 440.4(B)) is now required by the National Electrical Code.
Power distribution blocks or terminal blocks not marked with an SCCR are typically one of the weakest links and may limit an assembly to
no more than 10 kA SCCR.
The EPDB series and HPB series power distribution blocks have increased spacing required where used in feeder circuits in equipment listed
to UL508A. The PB series UL1059 terminal blocks must be evaluated for proper spacing.
Also, for building wiring systems, the EPDB series and HPB series power distribution blocks can be used to meet the 2005 NECŪ requirements
in section 376.56(B) for power distribution blocks in wireways.