CHINT NB1-63DC DC Circuit Breaker

DC-rated overload and short-circuit protection for suitable PV, storage and DC distribution circuits.

1–63A · DCProduct range

DC-rated circuit protection
1P, 2P and 4P configurations
PV and compatible DC applications

Request a quotePrice & availability confirmed by our team

Current rating

Pole / voltage

Selections describe your requirements. Our team confirms the exact available part number and compatible combination.

Quantity required

Get quote on WhatsApp ↗

Your enquiry opens in WhatsApp for you to review and send.

Call our team ↗Email an enquiry ↗

Model selectionInstallation optionsAfter-sales assistance

THE DETAILS

About this equipment

Sunlight can review the circuit design, fault level and required accessories before identifying the exact part number in your quotation. Ratings shown describe a range; not every combination is offered. The voltage rating depends on the approved pole arrangement; a 1P device is not rated for 1000V DC.

Specifications & selection details

CHINT NB1-63DC DC Circuit Breaker details
Series	NB1-63DC
Current range	1–63A
Pole / voltage configurations	1P: 250V DC; 2P: 500V DC; 4P: 1000V DC
Breaking capacity	Icu 6kA, subject to the specified configuration
Trip characteristic	C curve, 7–10 × rated current
Standard	IEC/EN 60947-2
Impulse withstand	4kV
Mounting	DIN rail
Ambient range	−35°C to +70°C; derating applies
Selection requirement	Check DC voltage, polarity, fault current and manufacturer connection diagram

Visit the manufacturer for product documentation ↗

Manufacturer information checked 3 November 2026. Model and regional variants may differ. Your written quotation identifies the equipment offered, with its applicable datasheet and terms.

Ordering & support

Share your requirements

Tell us your city, quantity and whether you need supply only or installation.

Review your quotation

Confirm the exact model, price, availability, accessories and agreed work before ordering.

Confirm the support terms

Review product warranty documents and the installation and after-sales responsibilities.

Is this product available for immediate delivery?

Our team confirms current stock, supply arrangements and any delivery charges in your quotation.

Is installation included in the price?

Equipment supply, installation, protection and accessories are separate scope items unless your quotation explicitly includes them.

How do I check compatibility?

Share the model numbers of your existing equipment and your intended load. We will review the proposed combination before confirming the selection.

CHINT NB1-63DC DC Circuit Breaker

About this equipment

Specifications & selection details