Introduction – Schneider MasterPact NW08N2 Air Circuit Breaker

The Schneider MasterPact NW series is designed for low-voltage electrical distribution systems where dependable circuit protection and switching performance are essential. These air circuit breakers are used to protect distribution equipment and connected circuits against electrical faults.

The NW08 family belongs to the 800 A frame class and offers different electrical performance options to suit varying system requirements. Selection involves checking the rated current, short-circuit breaking capacity, trip-unit functions, and installation arrangement.

For the NW08N2 reference, particular attention should be paid to model identification. Schneider selection information includes NW08N1, NW08H1, and NW08H2, but does not clearly establish NW08N2 as a standard catalog reference. Confirm the product nameplate and complete reference before purchasing or replacing equipment.

Technical Specifications – Product Data and Dimensions

Parameter	Specification
Brand	Schneider Electric
Product Series	MasterPact NW
Model Reference	NW08N2
Product Type	Air Circuit Breaker
Frame Class	NW08 (800 A)
Dimensions (H × W × D)	352 × 537 × 297 mm
Weight	65 kg (143.30 lb)
Application	Low-voltage power distribution and circuit protection

Dimensions and weight are based on the supplied product information. The 352 × 537 × 297 mm dimensions correspond to a fixed four-pole arrangement in published NW08 installation data. Confirm the actual configuration and model designation against the nameplate.

Recommended Related Models – Schneider MasterPact NW08 Range

The following are documented NW08 circuit-breaker references that may be useful when comparing configurations.

Model	Product Type	Frame Class
NW08N1	Air Circuit Breaker	800 A
NW08H1	Air Circuit Breaker	800 A
NW08H2	Air Circuit Breaker	800 A

These models have different interrupting-performance characteristics. They should not be treated as direct replacements without checking the electrical requirements.

Popular Related Models – MasterPact NW Circuit Breakers

NW08N1 – An 800 A frame circuit breaker for standard low-voltage distribution applications.
NW08H1 – An NW08 configuration with a higher interrupting-performance category than the N1 version.
NW08H2 – An NW08 option with a different short-circuit interrupting capability.
NW10N1 – A related 1000 A frame model for higher-current distribution applications.

When selecting a replacement, compare the complete catalog reference, rated voltage, breaking capacity, trip unit, pole arrangement, and mounting configuration.

Applications – Low-Voltage Power Distribution and Circuit Protection

The Schneider MasterPact NW08 series is designed for low-voltage power distribution systems that require reliable switching and circuit protection. It is commonly used in industrial plants, commercial buildings, and large electrical installations.

Typical application areas include:

Main low-voltage distribution panels
Industrial switchboards and power distribution cabinets
Commercial building electrical systems
Power distribution centers
Electrical installations requiring overload and short-circuit protection

The correct breaker configuration should be selected according to rated current, operating voltage, prospective fault current, and installation requirements.

Advantages – Reliable Protection and Flexible Integration

Circuit protection: Compatible trip units provide protection against overloads and short circuits.
800 A frame class: The NW08 family is designed for applications within the 800 A frame range.
Multiple performance options: Different interrupting-capacity versions are available within the NW08 family.
Switchboard integration: Fixed and drawout installation arrangements are available for applicable configurations.
Protection coordination: Adjustable trip settings support coordination with other protective devices.
Accessory options: Compatible auxiliary contacts, operating mechanisms, and control accessories can support different installation requirements.

Technical FAQs – Selection, Operation and Maintenance

Q1: What is the main function of the Schneider NW08N2?

It is presented as a MasterPact NW08 circuit-breaker reference for low-voltage power distribution and circuit protection. The exact catalog designation should be confirmed before ordering.

Q2: What does the NW08 designation represent?

NW08 identifies the 800 A frame class within the MasterPact NW family. The actual rated current depends on the selected sensor rating and breaker configuration.

Q3: Is NW08N2 an officially listed Schneider model?

Schneider's MasterPact NW selection information lists references such as NW08N1, NW08H1, and NW08H2. The exact NW08N2 designation is not established in the available selection information. Buyers should verify the nameplate or complete catalog number.

Q4: What protection functions are available?

Depending on the installed trip unit, MasterPact NW circuit breakers can provide long-time, short-time, instantaneous, and other protection functions. The actual functions depend on the trip-unit version.

Q5: Can the NW08 series protect against short circuits?

Yes. The appropriate NW08 circuit-breaker version can interrupt short-circuit currents within its specified breaking capacity at the applicable operating voltage.

Q6: What should be considered when choosing a trip unit?

Check the sensor rating, protection functions, adjustable current settings, system voltage, and coordination requirements. The trip unit must be compatible with the breaker.

Q7: Is the NW08 series available in fixed and drawout versions?

Yes. The MasterPact NW08 family includes fixed and drawout configurations. The exact mounting arrangement should be confirmed before ordering.

Q8: Can auxiliary contacts be installed?

Compatible auxiliary contacts and other accessories are available for applicable configurations. Verify accessory compatibility with the specific breaker version.

Q9: How should the circuit breaker be maintained?

Follow the manufacturer's maintenance instructions. Routine checks should include terminal connections, contact condition, operating mechanisms, trip-unit functions, and signs of overheating or mechanical damage.

Q10: What should be checked before replacing an existing NW08 breaker?

Verify the complete catalog number, rated current, interrupting capacity, operating voltage, pole arrangement, mounting type, connection arrangement, trip unit, and accessories. Similar model numbers do not guarantee interchangeability.

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