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Noark | Mini Circuit Breaker, Busbar Bottom Feeder | FD50UL


Mfr. Part #: FD50UL

18 in stock | Need More? >>


Ships same day with standard 2-day shipping if ordered M-F before 3PM PT.

Pickup Available at Livermore

ID #: 178808

  • NOARK FD50UL bottom feed comb bus bar terminal, UL 489 rated, 63A capacity, DIN-rail mount for reliable circuit protection and distribution.

  • Key Features:
    - Accommodates 1–3 poles with 50 mm² cross-sectional area
    - Bottom feed design for comb bus bars
    - Compatible with UL 489 listed miniature circuit breakers, up to 63 A
    - Standard DIN-rail mounting (35 mm) for circuit breaker installation
    - High interrupting capacity: 10 kA at 480Y/277 VAC and 10 kA at 125 VDC
    - Trip-free mechanism prevents holding the breaker ON to defeat trip
    - Captive screws to prevent loss during installation
    - Supports field-installable shunt trip and auxiliary switch
    - Provisions for ring tongue terminals for reliable connections
    - Narrow module width of approximately 0.71 in (18 mm) per pole
    - Contact position indicator (red/green) and lockable ON/OFF toggle

    Typical Applications:
    - Branch circuit protection systems
    - Convenience receptacle circuits (internal and external)
    - Motor control circuits
    - Load circuits exiting equipment
    - HVACR equipment, internal and external
    - PLC I/O modules and control panels
    - Power supplies and conditioners
    - Control instrumentation, relay arrays, UPS systems

  • FD50UL Specifications
    Product Type Bottom Feed Comb Bus Bar Terminal (UL 489)
    Manufacturer NOARK
    Poles 1–3
    Cross-sectional Area 50 mm²
    Rated Current Up to 63 A
    Interrupting Capacity 10 kA @ 480Y/277 VAC, 10 kA @ 125 VDC
    Mounting Standard 35 mm DIN-rail
    Features Bottom feed design
    Trip-free mechanism
    Captive screws
    Field-installable shunt trip & auxiliary switch
    Provisions for ring tongue terminals
    Narrow module width (18 mm per pole)
    Contact position indicator (Red/Green)
    Lockable ON/OFF toggle
    Typical Applications Branch circuit protection
    Convenience receptacle circuits
    Motor control circuits
    Load circuits exiting equipment
    HVACR equipment
    PLC I/O modules & control panels
    Power supplies & conditioners
    Control instrumentation, relays, UPS systems
  • Product Resources

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