Overview
The Mersen FSPDB3C is a UL 1059 finger-safe power distribution block designed for safe, efficient cable splicing and power distribution in industrial panel applications. Rated at 600V AC and 310A continuous current, it features integrated IP20 grade insulation that eliminates the need for supplementary covers or custom Plexiglas protection. The single-pole configuration with 1 primary connection and 8 secondary connections per pole accommodates wire sizes from 350 kcmil primary down to #14 AWG secondary, providing flexible terminal options for modern control panels.
Key Features
- Finger-Safe Protection: Recessed termination screws and wire openings provide IP20 grade protection and qualify as finger-safe per IEC 529
- Fast DIN Rail Installation: Snaps onto 35mm DIN rail to provide the quickest installation
- Modular Design: Modular configuration allows users to form any number of poles desired using optional assembly pins
- Captive Termination Screws: Unique channel design ensures secure, captive metric wire termination for reliable connections
- Tin-Plated Contacts: Provides corrosion resistance and consistent electrical contact
- High Short-Circuit Rating: 100 kA short circuit current rating for enhanced fault protection
Technical Specifications
| Voltage Rating | 600V AC / 1500V DC (with proper DIN rail installation and barriers) |
| Current Rating | 310A (Copper) |
| Number of Poles | 1 Pole |
| Primary Connections | 1 per pole |
| Secondary Connections | 8 per pole |
| Primary Wire Range | 2/0 to 350 kcmil AWG |
| Secondary Wire Range | #2 to #14 AWG |
| Protection Rating | IP20 Finger-Safe (IEC 529) |
| Short Circuit Rating | 100 kA with proper fuse selection |
| Mounting | 35mm DIN Rail (snap-on) |
| Temperature Rating | 75°C |
| Contact Material | Tin Plated |
| Finish | Gray |
| Dimensions | 3.97″ H × 1.85″ W × 2.53″ D |
| Certifications | UL 1059, CSA, CE, IEC Approved |
Typical Applications
- Cable splicing and termination in electrical control panels
- Primary to secondary power distribution in industrial switchgear
- Fixed junction tap-off points for circuit branch-outs
- Motor control centers and variable frequency drive installations
- Industrial automation and machinery power distribution systems
Compatibility & Replacements
Compatible With
- 35mm DIN rail mounting systems (standard industrial panel rails)
- IEC 61076 terminal block standards
- Applications requiring UL 1059 compliant power distribution
- Systems rated for 600V AC or 1500V DC operation
Replaces / Drop-In Replacement For
- Earlier FSPDB series single-pole finger-safe distribution blocks
- Verify compatibility with your system integrator before ordering
Works With
- Standard industrial power distribution panel designs
- Modular multi-pole assemblies (using optional assembly pins)
- Low-voltage and medium-voltage panel equipment
- Global electrical standards (UL, CSA, CE, IEC 529)
