CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER
CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER

CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER

MOQ : 1 Piece

CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER Specification

  • Breaking Capacity
  • 50 kA at 480V AC
  • Rated Short Circuit Breaking Current
  • 50 kA
  • Mechanical Life
  • Approx. 10,000 operations
  • Phase
  • Three Phase
  • Product Type
  • Molded Case Circuit Breaker (MCCB)
  • Installation Options
  • Panel Mount / Fixed
  • Function
  • Circuit Protection, Overload and Short Circuit Protection
  • Poles Number
  • 3 Pole
  • Rated Voltage
  • 600V AC
  • Rated Current
  • 1200A
  • Rated Frequency
  • 50/60 Hz
  • Curves
  • ND (Instantaneous Trip Adjustment)
  • Temperature Protection
  • Yes (Thermal-Magnetic)
  • Weight
  • 28 kg
  • Color
  • Black / Gray
  • Model Number
  • ND312T56W
  • Trip Unit
  • Thermal-Magnetic Adjustable
  • Interrupting Rating
  • 50,000 Amps at 480V AC
  • Terminal Type
  • Line and Load Lugs
  • Standards Compliance
  • UL Listed, CSA Certified
  • Mounting Style
  • Bolt-on / Panel Mount
  • Enclosure Protection
  • Open Type, Suitable for Enclosed Panel Installations
  • Frame Size
  • ND Frame
  • Operating Temperature Range
  • -25C to +40C
 

CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER Trade Information

  • Minimum Order Quantity
  • 1 Piece
  • Supply Ability
  • 500 Pieces Per Month
  • Delivery Time
  • 7 Days
 

About CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER

CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER


The Cutler Hammer ND312T56W is a Molded Case Circuit Breaker. This type ND circuit breaker is a member of The Series C family. The ND312T56W is a 3 pole, 600 Volt, 1200 amp rated circuit breaker, with an AIC rating of 50kA@480V. The ND312T56W is manufactured by Cutler Hammer, Eaton, Westinghouse. The ND312T56W uses a Bolt-On connection. Includes Solid State protection.



Superior Circuit Protection

With a high interrupting rating of 50,000A at 480V AC, the ND312T56W ensures rapid response to overloads and short circuits, safeguarding your electrical infrastructure. Its thermal-magnetic adjustable trip unit delivers both long-term and instantaneous protection, helping to maintain system stability and minimize downtime in demanding industrial or commercial environments.


Flexible Installation Options

This circuit breaker supports bolt-on and panel mount fixed installations, offering flexibility for electrical panel setups. The open-type enclosure is suitable for enclosed panel installations, while its standardized ND Frame size ensures compatibility with a wide range of systems. Line and load lug terminals facilitate straightforward wiring and maintenance.


Compliance and Reliability

The ND312T56W adheres to rigorous safety and performance standards, holding both UL Listing and CSA certification. Its mechanical life expectancy of approximately 10,000 operations ensures long-term reliability. Designed to operate within a temperature range of -25C to +40C, it offers dependable protection across diverse environments.

FAQ's of CUTLER HAMMER ND 50K ND312T56W 1200A 3POLE CIRCUIT BREAKER:


Q: How is the CUTLER HAMMER ND312T56W circuit breaker installed?

A: The ND312T56W is designed for bolt-on or panel mount fixed installation within enclosed panels. It features line and load lug terminals, enabling direct connection to electrical wiring, and fits standardized ND Frame panel arrangements.

Q: What types of protection does this circuit breaker provide?

A: This model offers both overload and short-circuit protection through its adjustable thermal-magnetic trip unit. It also allows for instantaneous trip adjustment with ND curves, ensuring immediate response to severe faults.

Q: Where can the ND312T56W circuit breaker be used effectively?

A: This circuit breaker is suitable for industrial and large commercial facilities with three-phase power systems. It performs reliably in a range of settings, especially where panels require high interrupting capacity (50kA at 480V AC) and a wide operating temperature range.

Q: What standards and certifications does the ND312T56W meet?

A: The circuit breaker is UL Listed and CSA Certified, ensuring it adheres to industry safety and performance standards required for most commercial and industrial electrical installations.

Q: What benefits does a thermal-magnetic adjustable trip unit offer?

A: The thermal-magnetic adjustable trip unit allows for fine-tuning protection settings for both overload (thermal) and instantaneous (magnetic) trips, reducing nuisance tripping while providing robust equipment and personnel safety.

Q: How long is the mechanical life of the ND312T56W circuit breaker?

A: The ND312T56W is designed for a mechanical life of approximately 10,000 operations, ensuring long-term, reliable service in high-use environments.

Q: What is the process for selecting the right breaker for an application?

A: To select the appropriate breaker, confirm your system's voltage (up to 600V AC), rated current (1200A), and required interrupting capacity (50kA at 480V AC). Ensure the ND Frame size fits your panel and that the installation environment matches the breaker's operating temperature and enclosure protection ratings.

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