Product Identification

Product Title

CHINT NB1-63DC C63A 63A 2-Pole 500V DC Solar Breaker

Short Description

The CHINT NB1-63DC C63A is a 63A, two-pole DC circuit breaker rated for 500V DC systems. It provides overload and short-circuit protection with C-curve tripping, 6kA breaking capacity, IP20 protection and IEC/EN 60947-2 compliance.

Long Description

Designed for photovoltaic, energy-storage and other DC distribution applications, the CHINT NB1-63DC combines dependable circuit protection with a compact DIN-rail format. CHINT's official selection table confirms product code 182726 as the 63A, 2-pole, C-curve variant rated at 500V DC with 6kA breaking capacity.

The breaker includes polarity markings for correct DC wiring, linked two-pole operation, visible contact-status indicators and dual connection support for conductors or busbars. Its operating range of -35°C to +70°C, 20,000-operation mechanical life and altitude rating up to 2,000 metres support demanding solar and industrial installations.

Correct polarity, cable sizing, operating current, voltage, prospective fault current and protection coordination must be confirmed by a qualified installer before installation. Refer to the official CHINT manual and wiring diagrams.

Key Features

• Official CHINT NB1-63DC series DC circuit breaker

• Exact C63A, 63A two-pole variant

• Rated operating voltage of 500V DC for 2P configuration

• 6kA short-circuit breaking capacity

• C-type tripping characteristic, 7–10 × In

• Overload and short-circuit protection

• Visible contact-status indicators

• Polarity markings for correct DC connection

• Dual conductor and busbar connection capability

• DIN-rail mounting with plug-in structure

• IP20 protection degree

• IEC/EN 60947-2, CE, CB, TÜV, CCC and RoHS listed by CHINT

Technical Specifications

Applications

• Solar photovoltaic arrays

• Solar combiner and DC distribution boards

• Battery energy-storage systems

• DC power distribution systems

• EV charging equipment

• Telecom and communication power networks

• Commercial and industrial DC installations

Box Contents

• CHINT NB1-63DC C63A 63A 2P breaker unit — verified primary product

• Retail packaging — Not Verified

• Printed installation manual — Not Verified as an in-box item

• DIN rail — Not Verified / not listed as included

• Additional accessories — Not Verified / not listed as included

Protection Features

• Overload-current protection

• Short-circuit-current protection

• 6kA fault-current interruption capability

• C-curve tripping response

• Linked two-pole switching operation

• Polarity markings for correct DC circuit connection

• Contact ON/OFF status indication

• IP20 protection degree

• Stored-energy operation and fast closing

Certifications

Warranty

Not Verified. A model-specific official warranty duration and warranty policy were not located on the official product page, catalogue or manual listing.