Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
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Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
Long Life 2-Pole Solar DC Circuit Breaker for PV Panels
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DELIXI AC Miniature Circuit Breaker Switch 10A/16A/20A/25A/32A
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DELIXI DZ47S 1P AC Miniature Circuit Breaker C10-C32
DELIXI DZ47S 1P AC Miniature Circuit Breaker C10-C32

Long Life 2-Pole Solar DC Circuit Breaker for PV Panels

BCD Curve:C
Type:MCB
Brand Name:Newtrend or OEM
Place of Origin:China
Model Number:DB1-63Z
Rated Frequency (Hz):50/60hz
Protection:LSI
Breaking Capacity:6kA
Rated Voltage:1000V
Poles
Rated Current
SKU: 1600731230055 Category:
Description

NB1-63Z DC Solar PV Mini Circuit Breaker, High Quality
Product

NB1-63Z DC Mini Circuit Breaker

Frame degree rated current

63A

Pole

1P, 2P, 3P, 4P

Rated Operating Voltage

1P 250 VDC, 1P 500V DC
2P 500V DC, 2P 1000V DC
3P 750 V DC, 3P 1000V DC
4P 1000V DC, 4P 1200V DC

Rated Current In

1A, 2A, 3A, 4A, 6A, 10A, 16A, 

20A, 25A, 32A, 40A, 50A, 63A

Rated Insulation Voltage Ui

1200V DC

Rated Impact Voltage Uimp

4KV

Ultimate Breaking Capacity lcu

6KA

Run Breaking Capacity lcs

75%

Curve Type

C

Trip Type

Thermal-magnetic

Mechanical Life

20000 times
 

Electrical Life

2500 times
 

 

Additional information
Weight 2 kg
Dimensions 25 × 25 × 25 cm
Rated Current

1A – 63A
Poles

1P, 2P, 3P, 4P
Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for Long Life 2-Pole Solar DC Circuit Breaker for PV Panels.

📥
Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.
Request Official Datasheet (PDF)
📐
2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.
Request CAD Model
Certified Standards: IEC 60898-1, IEC 60947-2, CE, RoHS, ISO 9001:2015
Manufacturer: Shanghai Newtrend Electric Co., Ltd. (Global Export Compliance)
Engineering Support: 24-hour response for custom voltage ratings, auxiliary contacts, and technical consulting.
Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

A

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

A

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

A

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

A

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

A

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.

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