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Circuit Breakers
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Items 1-10 of 24

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  1. NDB2Z-63C1-1
    NDB2Z-63C1-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C1-1
    MFG Item Number
    NDB2Z-63C1-1
    Series
    NDB2Z
    Product Description
    1 Pole, 1 Amp, Circuit Breaker, 125
    Specifications
    Specifications
    Poles 1
    Current Rating 1 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  2. NDB2Z-63C4-1
    NDB2Z-63C4-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C4-1
    MFG Item Number
    NDB2Z-63C4-1
    Series
    NDB2Z
    Product Description
    4 Amp, 1 Pole, 125 Vdc, DC DIN Rail
    Specifications
    Specifications
    Poles 1
    Current Rating 4 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  3. NDB2Z-63C1-2
    NDB2Z-63C1-2
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C1-2
    MFG Item Number
    NDB2Z-63C1-2
    Series
    NDB2Z
    Product Description
    2 Pole, 1 Amp, Circuit Breaker, 125
    Specifications
    Specifications
    Poles 2
    Current Rating 1 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  4. NDB2Z-63C10-1
    NDB2Z-63C10-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C10-1
    MFG Item Number
    NDB2Z-63C10-1
    Series
    NDB2Z
    Product Description
    1 Pole, 10 Amp, Circuit Breaker,
    Specifications
    Specifications
    Poles 1
    Current Rating 10 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  5. NDB2Z-63C10-2
    NDB2Z-63C10-2
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C10-2
    MFG Item Number
    NDB2Z-63C10-2
    Series
    NDB2Z
    Product Description
    2 Pole, 10 Amp, Circuit Breaker,
    Specifications
    Specifications
    Poles 2
    Current Rating 10 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  6. NDB2Z-63C16-1
    NDB2Z-63C16-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C16-1
    MFG Item Number
    NDB2Z-63C16-1
    Series
    NDB2Z
    Product Description
    16 Amp, 1 Pole, 125 Vdc, DC DIN
    Specifications
    Specifications
    Poles 1
    Current Rating 16 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  7. NDB2Z-63C16-2
    NDB2Z-63C16-2
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C16-2
    MFG Item Number
    NDB2Z-63C16-2
    Series
    NDB2Z
    Product Description
    16 Amp, 2 Pole, 125 Vdc, DC DIN
    Specifications
    Specifications
    Poles 2
    Current Rating 16 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  8. NDB2Z-63C2-1
    NDB2Z-63C2-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C2-1
    MFG Item Number
    NDB2Z-63C2-1
    Series
    NDB2Z
    Product Description
    2 Amp, 1 Pole, 125 Vdc, DC DIN Rail
    Specifications
    Specifications
    Poles 1
    Current Rating 2 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  9. NDB2Z-63C2-2
    NDB2Z-63C2-2
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C2-2
    MFG Item Number
    NDB2Z-63C2-2
    Series
    NDB2Z
    Product Description
    2 Amp, 2 Pole, 125 Vdc, DC DIN Rail
    Specifications
    Specifications
    Poles 2
    Current Rating 2 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
  10. NDB2Z-63C20-1
    NDB2Z-63C20-1
    ASI-Automation Systems Interconnect Circuit Breakers, NDB2Z Series
    Item Number
    NDB2Z-63C20-1
    MFG Item Number
    NDB2Z-63C20-1
    Series
    NDB2Z
    Product Description
    20 Amp, 1 Pole, 125 Vdc, DC DIN
    Specifications
    Specifications
    Poles 1
    Current Rating 20 A
    Max Voltage 250 VDC
    Protection Supplemental
    Trip Curve C
    Terminals Included Line and Load
    Trip Unit Fixed Thermal / Fixed Magnetic
    Mounting DIN Rail
    UL Standard 1077
    CSA Standard 22.2
    IEC Standard 60947-2
    Neutral Pole No
    kAIC @ 125 VDC 10
    kAIC @ 250 VDC 10
    Terminal Type Screw
    Auxiliary Switch Optional
    Shunt Trip Optional
    Undervoltage Release No
    Alarm Switch Optional
    Busbar Optional
    Increase
    Decrease
    Compare Item
    Availability
    Order by 5:00 PM ET and your package will ship the same day.
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Circuit Protection

Circuit breakers and fuses protect against overload and short circuits for all types of applications.

A circuit breaker is an automatically-operated electrical switch designed to protect an electrical circuit from damage caused by excess current, typically resulting from an overload or short circuit. The circuit breaker trips to interrupt the circuit, and be reset and reused.
Fuses provide the same protections. If too much current flows through the fuse, a metal link in the fuse body will melt and interrupt the circuit. A fuse can only trip and open the circuit once, so it must be replaced or repaired to complete the circuit again. Fuses are typically installed in fuse blocks, either for storage or to consolidate fuses in one, easily maintained location.

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