Edison Power Distribution Blocks

• 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 today’s 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 $10.00 (EPDB101)

• UL 1953 Listed
• Open-style Power Distribution blocks for cable termination
• Engineered to maintain an SCCR rating of 200kA with copper conductors

• Suitable for industrial control panel applications requiring high SCCR ratings
• Suitable for installation in wireways (with optional cover)
• Has minimum spacing requirements at 600VAC/DC of at least 1" through air and 2" over surface which meets UL 1953 requirements
• Used in UL508A panels
• Meets UL508A requirements and can be used in feeder and branch circuit applications
• Tin-plated aluminum connectors suitable for copper conductors
• Available safety covers for greater protection (purchase separately)
• Suitable for both factory and field wiring
• Panel mounting
• Ampere ratings up to 310 Amps
• HPB Series Power Distribution blocks start at $11.00 (HPB101-1)

• UL 1059 Recognized
• Open-style terminal blocks for cable termination
• SCCR rating of 200kA with copper conductors and an SCCR of 10 kA for aluminum conductors

• Used in UL508A panels for branch circuit applications
• Standard aluminum box connectors accommodate copper wire. PB401x, PB512x and PB712x series accommodate copper or aluminum wire.
• Tin-plated aluminum connectors suitable for copper conductors
• Available safety covers for greater protection (purchase separately)
• Suitable for both factory and field wiring
• Ampere ratings up to 760 Amps
• Edison open-style distribution terminal blocks start at $9.00 (PB1011)
  
  

Why is this important?

• Assembly short-circuit current ratings (SCCRs) are now required in the 2005 NEC® and UL508A Listed Industrial Control Panels.
• Marking the SCCR on Industrial Control Panels (NEC® 409.110), Industrial Machinery Electrical Panels (NEC® 670.3(A)), and HVAC equipment (NEC® 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 NEC® requirements in section 376.56(B) for power distribution blocks in wireways.