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Comprehensive Guide to Power Distribution Blocks (PDBs)

Learn about Power Distribution Blocks (PDBs) and their importance in safely distributing power from high ampacity sources to low ampacity loads. Explore types, features, and comparisons with other products in the market.

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Comprehensive Guide to Power Distribution Blocks (PDBs)

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  1. Power Distribution Blocks

  2. PDB - Introduction Main Power • Typically, PDB’s facilitate getting power from the Main (high ampacity) to the Load (low ampacity), while conforming to Codes and specs. • The “Primary” is the input side of the PDB and accepts large wires from the main switch. • The “Secondary” is the output side and can usually accommodate a lot of smaller wires that continue on to the loads. 3-pole PDB’s Loads

  3. PDB - Introduction Finger-Safe Open-style • There are Two types of PDB’s:

  4. PDB - Introduction We have many different open-style configurations in both Aluminum and Copper Section I of our catalog shows Mini, Intermediate and Large Configs

  5. FSPDB - Introduction Our FSPDB is our Newest style

  6. What is it? • Copper or aluminum block designed to provide a convenient method of splicing cable or splitting primary power into multiple secondary circuits. • Approved for use in UL 508A industrial control panels • Finger-safe providing protection against electrical shock

  7. It replaces existing open style PDB’s

  8. Wire sizes and ampacity for 75 C wire (Cu) UL 508A Size Diameter Amps Size Diameter Amps

  9. FSPDB Block configuration Secondary/load side Primary/line side FSPDB1A, C (1) 2/0 - #14 X (1) 2/0 - #14 FSPDB3A, C (1) 350 - #6 & (1) 2/0 - #14 X (8) #2 - #14

  10. Where is it sold? • 508 PANEL SHOPS • SYSTEMS INTEGRATORS • OEM’s • ELECTRICAL DISTRIBUTORS

  11. Why is it Sold? • Easy way to splice or split cable in electrical panels and wiring circuits. • Sell as a replacement against open style blocks because it has added safety feature • Smaller than open style blocks - Din rail mountable - Captive termination screws • SCCR requirement for UL 508 panels

  12. How Do You Sell It? • Sell the features - High SCCR (100kA) - Compact size, modular - IP20 Finger-safe - Din rail mountable • Sell FS services & tools - Technical services - Website - Customer service after sale

  13. FSPDB FEATURES • UL Recognized to std. 1059 and CSA certified • 600V rated, 175A to 840A • IP20 Finger-Safe protection per IEC529 • Short circuit current rating 100kA • Multi wire approved • Compact footprint with snap-on DIN rail mounting • Captive termination screws • Multi-pole mounting capability

  14. The Competition: • Major features: - UL Recognized to std. 1059 - CSA Certified - IP20 Finger-Safe per IEC 60529 - High SCCR (100kA) - High strand count wire approval (classes B, C, G, H, I, K, 1, 2, 5) - Multi-wire approved Marathonsp.com

  15. Marathon Price Comparison

  16. Marathon/FS Footprint comparison

  17. The Competition: • Major features: - UL Listed to 1953 (service entrance spacing) - CSA Certified - CE per IEC 60947-7-1 - IP20 Finger Safe per IEC 60529 - High SCCR(200kA) - Multi-pole mounting capability - Captive termination screws - DIN rail or panel mounting

  18. Bussmann Price Comparison

  19. Bussmann/FS Footprint comparison

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