Circuit Breakers – Component for Solar ACDB/DCDB Panel

Circuit Breakers are automatic electrical devices that interrupt current flow in a circuit when they detect overload or short-circuit conditions. These devices prevent potential fire hazards, equipment damage, and system failures.
At Synchro Electricals, we offer a range of high-quality, durable circuit breakers for solar, industrial, and residential installations. Our breakers are designed to meet IEC standards and ensure uninterrupted protection and power control.This switch is usually mounted outdoors (near the meter or inverter) and is often required by local electrical codes to ensure that utility workers and technicians can safely isolate the system during maintenance or emergencies.

Key Benefits of Synchro Circuit Breakers

Advanced Protection

Prevents fire hazards by cutting off power during overload, fault, or short circuits.

Compact & Easy to Install

Meets requirements by NEC, IEC, and local utility standards for solar installations.

Long Life & High Durability

Built using premium copper parts, silver alloy contacts, and heat-resistant casing.

IEC-Compliant & Certified

Meets global safety and performance standards (IEC 60898, IEC 60947).

Compatible With Solar Systems

Designed to operate reliably in AC and DC circuits, including solar ACDB/DCDB boxes.

Customizable Ratings & Poles

Available from 6A to 1000A, in 1P, 2P, 3P, and 4P options.

Technical Specifications (Sample)

FAQ's

MCBs are used for lower loads and residential setups, while MCCBs are ideal for high-current industrial applications due to higher breaking capacity and adjustable trip settings.

For solar applications, use DC-rated breakers in the DCDB and AC-rated breakers in the ACDB. Ensure the current rating matches your inverter and load capacity.

Circuit breakers should be housed in IP65/IP66-rated enclosures like our Solar ACDB/DCDB Boxes for outdoor use.

Yes, all our breakers comply with IEC standards and undergo rigorous quality testing

Yes, we offer custom-built solutions based on your voltage, current, and environmental conditions.

Yes, we offer custom-built solutions based on your voltage, current, and environmental conditions.

A circuit breaker with B- or C-curve trip characteristic and selective coordination (time-delay on fault clearance) is ideal. It allows normal inverter inrush currents yet trips for sustained overloads, matching the inverter output profile.

Icu is chosen based on the maximum prospective fault current at the distribution panel, typically kilo-amp range (5 kA to 25 kA). It must exceed the highest expected fault current to ensure safe interruption.

High ambient and enclosure temperatures reduce the breaker’s trip threshold and current-carrying capacity. Derating ensures the breaker remains within safe limits despite internal panel heat.
Set downstream breakers to trip faster than upstream, ensuring only the local fault circuit is isolated. Coordination prevents unwanted isolation of the entire system during minor faults.
Specialised breakers with AFD detect unintended electrical arcs from cable faults or insulation breakdown. They shut off quickly to prevent fire hazards and comply with PV installation safety standards.

Circuit Breakers

Ensure your solar system is safe, code-compliant, and efficient with a high-quality

Welcome to Synchro Electricals

We provide trusted, high-performance electrical solutions tailored for every industry.

Welcome to Synchro Electricals

We provide trusted, high-performance electrical solutions tailored for every industry.

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