Overload & Short-Circuit Protection
Integrated circuit breakers guard the inverter and downstream wiring against overload conditions and short-circuit faults, helping prevent equipment damage and unplanned downtime.
SOLAR PV · AC-SIDE PROTECTION & ISOLATION
AC Distribution Box (ACDB)
Centralized AC Protection and Isolation for Solar PV Systems
The Sertel Alternating Current Distribution Box (ACDB) is a centralized AC-side protection and isolation panel installed between a solar inverter and the grid or connected load. It brings together circuit breakers, an isolator, and a dedicated Type II surge protection device inside a single, outdoor-rated enclosure, giving installation and service teams one clearly marked point to protect, isolate, and inspect the AC side of a solar power system.
IP65/IP66-rated ABS/PC enclosure for outdoor use
690 V AC rated insulation voltage
230 V AC (1-phase) / 415 V AC (3-phase) operating voltage
Type II Surge Protection Device (SPD) built in
Designed to IEC 61439, IEC 60947 and IS 13947
Integrated overload and short-circuit protection
Key Features
Engineered for Safe, Reliable AC Distribution
Everything needed to protect, isolate, and distribute AC power safely, from inverter output to grid connection, in one compact, outdoor-rated panel.
Type II Surge Protection (SPD)
A dedicated Type II surge protection device safeguards connected equipment from lightning strikes and transient surge voltages entering from the grid side.
Safe Isolation for Maintenance
A built-in isolator lets technicians disconnect the inverter from the grid before inspection or servicing, supporting safe working practices for installation and service personnel.
IP65/IP66-Rated Enclosure
The ABS/PC enclosure keeps dust and moisture out of the protection components inside, supporting reliable operation on rooftops, in open solar plants, and inside industrial facilities.
Centralized AC Power Management
Switching, isolation, and protection functions are consolidated at a single, clearly identified handover point between the inverter and the grid, simplifying installation and reducing the need to work across multiple connection points.
Built to Recognized Standards
Designed in line with IEC 61439, IEC 60947, and IS 13947, the ACDB meets established safety, construction, and performance requirements for low-voltage AC distribution equipment.
Applications
Trusted Across Critical Applications
The Sertel ACDB forms the AC-side protection boundary wherever a solar inverter connects to the grid or to a building's electrical system.
On solar PV plants, the ACDB protects and distributes AC output across ground-mount and utility-scale installations. In commercial and industrial facilities, it provides a defined protection and isolation point for AC distribution, reducing the number of separate connection points a technician has to work across. On residential rooftops, it supports safe AC distribution from a single inverter to the household supply. In every grid-connected system, the ACDB forms the interface point between the inverter and the grid, shielding the inverter from overload, short-circuit, and surge conditions that originate on the grid side.
Technical Specifications
Complete electrical, protection, and build details for the Sertel AC Distribution Box (ACDB Series).
Electrical Specifications
| Parameter | Specification |
|---|---|
| Model | ACDB Series |
| Insulation Voltage | 690 V AC |
| Operating Voltage | 230 V AC (1-phase) / 415 V AC (3-phase) |
| System Frequency | 50 Hz |
Feature availability depends on specific requests and applicable price points. Output ports are customizable based on project requirements. Product development is a continuous process, and specifications are subject to change without prior notice.
How the Sertel ACDB Compares
A quick look at how a fully integrated ACDB stacks up against a basic AC combiner box or a standalone isolator.
| Capability | Sertel ACDB | Basic AC Combiner Box | Standalone Isolator |
|---|---|---|---|
| Overcurrent Protection | Integrated circuit breakers | Often optional | No |
| Surge Protection | Type II SPD built in | Rarely included | No |
| Isolation | Dedicated isolator for safe maintenance | Limited | Yes, isolation only |
| Enclosure Rating | IP65 / IP66, outdoor rated | IP54 typical | Varies |
| Standards Compliance | IEC 61439, IEC 60947, IS 13947 | Partial | Varies |
| Application Scope | Solar PV, commercial, industrial, residential | Solar PV only | General electrical |
Frequently Asked Questions
Ready to Protect Your Solar Installation?
Talk to a Sertel engineer for a tailored configuration, datasheet, and pricing for the ACDB Series.