CHINT NXB-63S Miniature Circuit Breaker CHINT NXB-63S Miniature Circuit Breaker
  • Home
  • Products
    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Automation & Control

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Circuit Breaker & Fuses

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Din-Rail Mounted Products

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Distribution Box & Cabinet

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Load Center & Meter Bases

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Solar PV Products

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Electrical Accessories

    NewTrend RT8-Bt Off-Delay Timer Relay, 16A, 1 Timed + 1 Instantaneous SPDT

    Chint Electrical Materials

  • About
  • Blog
  • Cross-Reference
  • Contact
Search

Email: sales@sntelec.com
0086-18019187010 (WhatsApp)

Menu
CHINT NXB-63S Miniature Circuit Breaker CHINT NXB-63S Miniature Circuit Breaker
Search
CHINT NXB-63S Miniature Circuit Breaker
Click to enlarge
Home Chint Electrical Materials Chint MCB CHINT NXB-63S Miniature Circuit Breaker
CHINT NBG-63 Miniature Circuit Breaker
CHINT NBG-63 Miniature Circuit Breaker
Back to products
CHINT NXB-63C Miniature Circuit Breaker
CHINT NXB-63C Miniature Circuit Breaker

CHINT NXB-63S Miniature Circuit Breaker

Brand Name: CHINT
Product Type: Miniature Circuit Breaker
Model: NXB-63S
Rated Voltage: AC 230V/400V, 63A
Application: Miniature circuit breaker for low-voltage distribution panels
Model
Poles
Rated Current
Tripping Curve
Request a Quote

Send quantities and requirements together. Availability and final specifications are confirmed with your quotation.

Category: Chint MCB
  • Description
  • Additional information
  • Technical Documents
  • Selection & Ordering
Description

CHINT · Circuit breaker

Product overview

This CHINT NXB-63S listing provides overload and short-circuit protection for AC distribution. Select the exact manufacturer model, pole count, rated current and trip characteristic, then match the installation fault level.

Technical selection summary

Manufacturer modelNXB-63S
Current choices on this page1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Pole scope1P, 2P, 3P or 4P; confirm complete neutral/terminal construction
Trip characteristicB / C / D; use the exact manufacturer release/curve row
AC supply referenceAC 240/415 V, 50/60 Hz manufacturer reference; use the appropriate pole/system voltage
Short-circuit reference4.5 kA short-circuit and service values in the exact NXB-63S column
Installation / documents35 mm DIN rail; apply the exact manufacturer installation/derating instructions and obtain documents for the supplied version

The S construction has its own manufacturer column. Do not copy 6 kA from NXB-63 or 10 kA from NXB-63H. Match the marked device, fault level, conductor protection and applicable temperature derating.

Typical applications

  • Distribution or control panels matched to the exact device
  • Replacement procurement using complete CHINT model and assembly information

Specify your enquiry

For a focused quotation, include:

  • Full NXB-63S code, poles, rated current, curve and quantity
  • System voltage/frequency, fault level and required standard
  • Neutral, terminals/busbar, accessories and applicable supply documents

Download CHINT NXB-63S manufacturer catalogue (PDF)

Product reference images and drawings

Match the exact manufacturer model, pole construction, voltage and connection drawing. Retained family images may show other versions.

NXB-63S technical reference 1NXB-63S technical reference 2
Additional information
Model

NXB-63S

Poles

1P, 2P, 3P, 4P

Rated Current

1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A

Tripping Curve

B, C, D

Technical Documents

TECHNICAL RESOURCES

Documents for CHINT NXB-63S Miniature Circuit Breaker

A downloadable document is not currently attached to this listing. Request the datasheet for your required model and configuration.

Request a datasheet

Drawings and compliance documents

Tell us the model and destination market if you need dimensions, a wiring diagram or a certification document. Available documents and approvals depend on the exact product configuration.

Ask for product documents

Supplier: Shanghai Newtrend Electric Co., Ltd. Brand and manufacturer details are stated separately for each product.

Selection & Ordering

BEFORE YOU ORDER

Selection and ordering questions

What information is needed for a quotation?

Send the exact model or selected configuration, required quantity, destination country and any project-specific requirements. Our team will confirm availability and the matching specification.

Are the same approvals available for every configuration?

No. Standards, certificates and market acceptance must be checked for the exact manufacturer model and configuration. Request the relevant document before specifying the product.

Can I include other products in the same enquiry?

Yes. Add the required products to your quote list, set the quantities and send one enquiry with your project requirements.

Related products

CHINT NXB-40 1P+N DIN Rail Circuit Breaker, 6–40 A

CHINT NXB-40 1P+N DIN Rail Circuit Breaker, 6–40 A

CHINT NXB-40 is a compact 1P+N circuit breaker for branch-circuit overload and short-circuit protection. It is a separate rating from NXB-63; select the current and trip curve for the protected circuit rather than using the wider NXB family specifications.

CHINT NB1-63 Miniature Circuit Breaker
CHINT NB1-63 Miniature Circuit Breaker

CHINT NB1-63 Miniature Circuit Breaker

The CHINT NB1-63 series provides overload and short-circuit protection for domestic, commercial and industrial distribution circuits. This listing is for the NB1-63 family; confirm a different suffix separately when the project specifies NB1-63H or NB1-63-H2.

CHINT UVT-X3 Under Voltage Release for NXB-125
CHINT UVT-X3 Under Voltage Release for NXB-125

CHINT UVT-X3 Under Voltage Release for NXB-125

CHINT UVT-X3 is a undervoltage release used with the specified matching circuit breaker. The accessory operates the breaker mechanism when its supply reaches the stated trip range.
CHINT DZ158-125 DIN Rail Circuit Breaker, 63–125 A

CHINT DZ158-125 DIN Rail Circuit Breaker, 63–125 A

CHINT DZ158 provides overload and short-circuit protection for AC distribution and mounts on a 35 mm DIN rail. Choose the full model, current, poles and breaking-capacity version to match the installation.

CHINT OVT-X1 Over Voltage Release for NXB-63 / NXB-40 MCB Accessories
CHINT OVT-X1 Over Voltage Release for NXB-63 / NXB-40 MCB Accessories

CHINT OVT-X1 Over Voltage Release for NXB-63 / NXB-40 MCB Accessories

Brand Name: CHINT
Product Type: Over Voltage Release / Overvoltage Release
Model: OVT-X1
Compatible Series: NXB-63 and NXB-40
Application: Low-voltage breaker accessory for panel and distribution systems
Chint NXU-IIG Surge Arrester
Chint NXU-IIG Surge Arrester

Chint NXU-IIG Surge Arrester

The retained NXU-II G overview compares pole, AC/DC voltage and discharge-current selections, with the G/F reference identifying an alarm-terminal option.

Check availability
Chint NX8 Consumer Unit
Chint NX8 Consumer Unit

Chint NX8 Consumer Unit

The CHINT NX8 overview retains unit-count, mounting, enclosure and assembly references.

Check availability
CHINT NB1Z-63 AC/DC MCB, 1P/2P 1-63A
CHINT NB1Z-63 AC/DC MCB, 1P/2P 1-63A

CHINT NB1Z-63 AC/DC MCB, 1P/2P 1-63A

CHINT NB1Z-63 AC/DC miniature circuit breakers. Select the pole and voltage version first; short-circuit ratings follow the 2026 original manufacturer catalogue.
Close
Product categories
  • Circuit Breaker & Fuses
    • Plug in Circuit Breaker
    • MCCB Circuit Breaker
    • ACB Circuit Breaker
    • Fusegear
    • Switch Disconnector
    • Manual Changeover Switch
    • Automatic Changeover Switch
    • Circuit Breaker Auxiliaries
    • UL Listed Plug in Breaker
    • UL Listed MCCB
    • UL Listed ACB
  • Automation & Control
    • AC Contactors
    • DC Contactors
    • Overload Relays
    • Motor Manual Starters
    • Frequency Inverters
    • Relays
    • Pushbuttons
    • Pilot Lights
    • Tower Lamps
  • Din-Rail Mounted Products
    • MCB
    • RCCB
    • RCBO
    • Auto Reclosing RCCB & RCBO
    • Modular Contactor
    • Surge Protector SPD
    • Over Under Voltage Protector
    • Din Rail ATS
    • Din Rail Changeover Switch
    • Din Rail Energy Meter
    • UL Listed MCB
  • Distribution Box & Cabinet
    • Distribution Box
    • Metal Enclosure
    • Plastic Junction Box
    • Aluminum Junction Box
  • Load Center & Meter Bases
    • PowerMark Load Center
    • TYE Load Center
    • CH Load Center
    • QOD Load Center
    • QOL Load Center
    • TLS Load Center
    • Meter Bases
    • Safety Switches
    • Steel Junction Box
    • UL Listed Load Center
  • Solar PV Products
    • DC MCB
    • DC MCCB
    • DC Fuses
    • DC SPD
    • DC Isolator Switch
    • PV Combiner Box
    • Solar PV Connector
    • Waterproof Box
  • Electrical Accessories
    • Terminal Blocks
    • Pre Insulated Terminals
    • Industrial Plug & Sockets
    • Insulator
    • Wiring Accessories
    • Din Rail
    • Meter & Transformer
    • Others
      • Delixi Electrical Materials
        • Delixi MCB
        • Delixi RCCB RCBO
        • Delixi MCCB ACB
        • Delixi Contactor & Overload Relays
        • Delixi Relays
        • Delixi Fuse & Disconnectors
        • Delixi Inverter & Soft Starters
        • Delixi Pushbutton & Pilot Lights
        • Delixi Changeover Switches
        • Delixi Capacitor & Reactors
        • Delixi Voltage Stabilizers
      • People Electrical Materials
        • People MCB
        • People RCCB RCBO
        • People MCCB ACB
          • People Air Circuit Breakers
          • People Moulded Case Circuit Breakers
        • People Contactor & Overload Relays
        • People Relays
        • People Fuse & Disconnectors
        • People Inverter & Soft Starters
        • People Pushbutton & Pilot Lights
        • People Changeover Switches
        • People Capacitor & Reactors
        • People Voltage Stabilizers
        • People New Energy
        • People Motor Drive Protection
        • People Master Switches
        • People Control Transformers
        • People Rectifiers & Thyristors
        • People Industrial Plugs & Sockets
        • People Terminal Blocks
        • People Electromagnets
        • People Bells & Alarms
        • People Low Voltage Switchgear
        • People High Voltage Switchgear
        • People Other Equipment
        • People Power Transformers
          • People Dry Type Transformers
          • People Oil Immersed Transformers
          • People Combination Transformers & Substations
        • People Hazardous Area Equipment
          • People Explosion-Proof Fans
          • People Industrial & Hazardous Area Lighting
          • People Explosion-Proof Electrical Apparatus
          • People Explosion-Proof Conduit & Fittings
          • People Dust Explosion-Proof Equipment
          • People Plastic Explosion-Proof Equipment
        • People Energy Meters
        • People Measuring Instruments
        • People Cables & Conductors
      • Noark Electrical Materials
        • Noark UL ACB
        • Noark UL MCCB
        • Noark UL MCB
        • Noark UL RCCB
        • Noark UL Enclosed Breakers
        • Noark UL Contactor & Overload Relays
        • Noark UL Inverter & Soft Starters
        • Noark UL Motor Protection & Manual Starters
        • Noark UL Fuse & Disconnectors
        • Noark UL Surge Protection Devices
        • Noark UL DC Circuit Breakers & Disconnectors
  • Chint Electrical Materials
    • Chint MCB
    • Chint RCCB RCBO
    • Chint MCCB ACB
    • Chint Contactor & Overload Relays
    • Chint Inverter & Soft Starters
    • Chint Relays
    • Chint Fuse & Disconnectors
    • Chint Pushbutton & Pilot Lights
    • Chint Changeover Switches
    • Chint Capacitor & Reactors
    • Chint Voltage Stabilizers
YOU MAY ALSO LIKE…
  • NewTrend TYE-8F Load Center, 125A, 8 Ways, Flush NewTrend TYE-8F Load Center, 125A, 8 Ways, Flush
  • NewTrend TYE-30F Load Center, 125A, 30 Ways, Flush NewTrend TYE-30F Load Center, 125A, 30 Ways, Flush
  • NewTrend TYE-12F Load Center, 125A, 12 Ways, Flush NewTrend TYE-12F Load Center, 125A, 12 Ways, Flush
  • NewTrend TYE Load Center, 125A, 2–36 Ways NewTrend TYE Load Center, 125A, 2–36 Ways
  • Home
  • Products
  • Factory
  • About
  • Blog
  • Contact
Main Products
More+
  • Privacy Policy
  • Refund and Returns Policy
  • Shipping policy
  • Terms-of-service

CONTACT US

  • 0086-18019187010 (WhatsApp)
  • 0086-21-37699020
  • 0086-21-64059929
  • sales@sntelec.com
  • Room J7855, 108, 1st Floor, Building 1, No. 6988, Jiasong North Road, Anting Town, Jiading District, Shanghai, China
LEAVE A MESSAGE

Get a Free Quote

    Copyright @ Shanghai Newtrend Electric Co., Ltd. All Rights Reserved
    • Menu
    • Categories
    • Home
    • Products
    • Factory
    • About
    • Blog
    • Contact
    • Home
    • Products
    • Cross-Reference
    • Case
    • Factory
    • About
    • Blog
    • Contact
    Sidebar
    Start typing to see products you are looking for.

    Sending...

    Request a Quote 0 WhatsApp

    SHANGHAI NEWTREND ELECTRIC

    Your quote request

    Select products, add quantities and tell us what you need.

    You can send a general enquiry, or browse our products and add items to this list.

    We use your details to respond to this enquiry. Privacy policy

    Continue browsing