Air Circuit Breaker (ACB) Panels
-- Steady & Reliable Manufacturer --
Product Overview
Air Circuit Breaker (ACB) Panels are the high-capacity "Main Incomers" of low-voltage electrical systems, designed to handle currents from 800A up to 6300A. At DSJ Electrical, our ACB panels utilize air as the arc-extinguishing medium, providing a robust and visible means of protecting large-scale infrastructure from short circuits and overloads. We integrate world-class ACBs (such as our own DSJ-Smart series or ABB/Schneider brands) that feature microprocessor-based trip units for "Infinite Coordination." Our ACB panels are designed for "Service Continuity," often featuring draw-out (withdrawal) mechanisms that allow the breaker to be removed for inspection without disturbing the main busbars. With high breaking capacities (up to 120kA), these panels are the definitive choice for the main LV distribution room of any skyscraper, hospital, or industrial plant. DSJ ACB panels provide the raw power and sophisticated protection required to manage the electrical intake of your most critical assets.
Electrical Partner
At DSJ, we transform complexity into reliability. With 42+ years of expertise in power distribution systems, our turnkey service integrates every phase – from regulatory compliance to final commissioning – ensuring seamless project execution for global clients. Whether it is the initial design or the final handover, we will strictly control every detail to ensure that the final delivered products perfectly meet your expectations. With us, you can focus on your core business with peace of mind, knowing that your project is in the hands of professional and reliable partners.
Introduction
The Air Circuit Breaker (ACB) Panel line from DSJ Electrical Co., Ltd is the "Master Controller" of your facility's power. We recognize that the ACB is the last line of defense between a massive grid fault and your internal equipment. Our introduction of this series focuses on "Arc-Extinction Precision" and "Digital Trip Control." We utilize high-grade "Arc Chutes" and silver-alloy contacts to ensure that even the most violent electrical faults are cleared in milliseconds without damaging the switchboard. Our manufacturing process involves precision busbar alignment to ensure that the ACB "stabs" engage perfectly every time.
Innovation at DSJ involves "Intelligent Protection Nodes." Each ACB can be equipped with an HMI display that provides real-time metering, harmonic analysis, and fault logging. We also prioritize "Energy Management," with ACBs that can communicate directly with your Building Management System (BMS) to perform automated load-shedding or peak-shaving. At DSJ, we provide our ACB panels in "Form 4" separation as standard, ensuring that an operator can work on the control wiring while the main busbars remain energized. Choosing our ACB panels means choosing the highest level of protection available for the low-voltage grid. We provide the "Invisible Shield" that keeps your critical operations running safely under any electrical condition.
Applications
- Main LV Intake: Primary distribution for commercial and industrial buildings.
- Generator Control: Main protection for high-capacity backup generators.
- Data Centers: Managing the intake for massive UPS and server halls.
- Hospitals: High-reliability distribution for life-safety systems.
- Water Treatment: Powering large-scale intake pumps and compressors.
- Heavy Manufacturing: Main power nodes for automotive and steel plants.
Specifications
| Technical Data | ACB Panel Specification |
|---|---|
| Rated Current (In) | 800A to 6300A |
| Breaking Capacity (Icu) | 50kA to 120kA at 415V |
| Operational Voltage | Up to 690V AC |
| Trip Unit Type | Microprocessor-Based (LSI / LSIG) |
| Installation Type | Fixed or Draw-out (Withdrawal) |
| Internal Separation | Form 2b to Form 4b |
| Standard | IEC 60947-2 / EN 60947-2 |
Why Choose Us
DSJ Electrical is a "High-Ampacity Specialist." We offer the highest-spec ACB panels on the market, featuring superior thermal management and structural reinforcement. Our ability to integrate any major breaker brand into our custom-built enclosures gives you the ultimate flexibility in design and price.
- Q: What is a "Draw-out" ACB?
- A: It is an ACB on a racking mechanism that can be physically disconnected from the busbars for safe maintenance.
- Q: Does the ACB monitor energy usage?
- A: Yes, our modern electronic trip units include high-accuracy voltage and current metering.
Advantages
- Extreme Protection: Handles the highest fault levels in LV grids.
- Selectivity: Precise trip settings prevent unnecessary wide-scale outages.
- Easy Maintenance: Draw-out design allows for "Hot-Swapping" components.
- Digital Metering: Integrated monitoring of power quality and energy.
- Robust Durability: Engineered for over 20,000 mechanical operations.
- Communication Ready: Native support for Modbus and Ethernet protocols.
Standards & Certifications
Our ACB panels are fully compliant with IEC 60947-2 and IEC 61439-1. We hold CE, ASTA, and KEMA type-test reports for short-circuit and temperature rise. Every panel undergoes a primary injection test to verify trip unit accuracy before shipment.
Payment & Shipping
ACB panels are shipped as individual vertical sections, with the ACBs usually packaged separately for safety during transit. We provide specialized lifting tools and manuals. Lead times are 6-8 weeks.
DSJ Story
about DSJ
Building Power, Building Trust
Founded in 1983, DSJ is a leader in China's power distribution equipment. Headquartered in Beijing as the top-selling enterprise, we integrate manufacturing with trade and maintain full in-house capabilities in R&D, production, and sales. This enables efficient fulfillment of custom orders with industry-leading speed.
As a producer of distribution system, transformer, generator and photovoltaic products exceeding Chinese/international standards, DSJ supplies medium/low-voltage electrical equipment, and PV systems. For over four decades, we have delivered high-safety electrical solutions globally to public infrastructure, corporations, and households – achieving the industry's lowest return rate.
Committed to "meeting diverse needs through quality", DSJ leverages expert teams to provide one-stop services: pre-sales consultation & customization, flexible logistics/payment options, and reliable maintenance – ensuring seamless producer-maintainer-customer collaboration.
+86 18513032986 
FLC Center, Chaoyang District, Beijing, China