L7 AC/DC PV Solar Mini Circuit Breaker 1P-4P 6kA/10kA

Name: L7 AC/DC PV Solar Mini Circuit Breaker 1P-4P 6kA/10kA
Brand: Newtrend or OEM brand
SKU: 60282788634

BCD Curve:C
Type:MCB
Brand Name:Newtrend or OEM brand
Place of Origin:China
Model Number:L7
Rated Frequency (Hz):50/60hz
Breaking Capacity:10kA
Rated Voltage:220V
Type:Mini
Breaking capacity:10KA
Rated current:1A-63A
Rated voltage:230/400V
Standard:IEC60947-2

Poles

Rated Current

SKU: 60282788634 Category: Others

Description

10KA Mini circuit breaker L7 Din rail AC PV DC 1P DPN 2P 3P TPN 4P 1A 2A 3A 4A 6A 10A 16A 20A 25A 32A 40A 50A 63A 6KA 10KA MCB

Application:

L7 and L7N miniature circuit breaker have protective function as shortage as overload, and are used in lighting distribution system in industry, commerce, dwelling and protect fractional electric motors. And they also have many merits of high protective grade (up to IP20), high break capacity (up to 10KA), reliable sensitive action, convenient, multipole assembling, long life etc.

They are mainly adapted to the circuit of single pole 230VAC 250VDC, double pole 400VAC 500VDC, three pole 400VAC 750VDC, four pole 400VAC 1000VDC for protecting overload and short circuit. Meanwhile, they are also used in turning on or off the electric apparatus and lighting circuit under the normal condition.

Specification:

Dimension:

Additional information

Weight	2 kg
Dimensions	25 × 25 × 25 cm
Rated Current	1A, 2A, 3A, 4A, 6A, 10A, 16A, 20A, 25A, 32A, 40A, 50A, 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 L7 AC/DC PV Solar Mini Circuit Breaker 1P-4P 6kA/10kA.

📥

Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

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?

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?

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?

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?

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?

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.