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AC Distribution Panel

AC Distribution Panel

The AC Distribution Panel functions as the central node for incoming alternating current power management, isolating, switching, and distributing electrical loads safely across industrial machinery and commercial systems.

Product Overview

 

The AC Distribution Panel functions as the central node for incoming alternating current power management, isolating, switching, and distributing electrical loads safely across industrial machinery and commercial systems. Built on 1.5mm cold-rolled steel or stainless steel enclosures, these panels integrate modular circuit breakers, high-purity copper busbars, and comprehensive terminal blocks to prevent overloads and short circuits. Engineered for direct integration into OEM equipment skids or standalone control rooms, each unit undergoes strict dielectric voltage withstand testing prior to dispatch. 

 

Technical Specifications

 

Parameter

Standard Configuration

Custom Range

Rated Operational Voltage (Ue)

240V / 415V AC

Up to 690V AC

Rated Current (In)

100A - 400A

Up to 1600A

Rated Frequency

50Hz / 60Hz

400Hz (Marine/Aerospace)

Short-Circuit Current Rating (SCCR)

25kA / 35kA

Up to 65kA

Enclosure Material

1.5mm Cold-Rolled Steel (Epoxy Powder Coated)

SS304 / SS316 Stainless Steel

Ingress Protection (IP)

IP54 / IP65

IP66 / NEMA 4X

Busbar Material

Electrolytic Tough Pitch Copper (Tinned)

Silver-plated Copper

 

Key Features

 

Modular Busbar Architecture: Main distribution busbars utilize high-purity copper, bolted using torque-controlled fasteners to minimize contact resistance and thermal hotspots under full load.

Rigid Enclosure Construction: Seam-welded corners and polyurethane poured-in-place door gaskets maintain structural integrity and prevent dust or moisture ingress in harsh environments.

Logical Component Layout: DIN rail arrangements and wire duct sizing comply with industrial wiring standards, leaving 30% spare space for future circuit additions.

Integrated Safety Shielding: Clear polycarbonate internal deadfront barriers protect technicians from accidental contact with live line terminals during maintenance operations.

 

Applications

 

Industrial Automation Skids: Distributing motor control and PLC power feeds in automated manufacturing lines.

Commercial HVAC Systems: Managing power routing for large-scale chillers, air handling units, and ventilation controllers.

Genset & Power Backup Units: Acting as the primary automatic transfer and distribution interface for standby diesel generators.

Renewable Energy Systems: Combining AC outputs from commercial inverters before grid tie-in or local consumption.

 

Customization

 

Manufacturing operations adapt directly to engineering drawings, bill of materials (BOM), and single-line diagrams provided by client teams.

 

Enclosure Modifications: Custom cutouts for HMIs, pushbuttons, cable glands, and cooling fans executed via CNC turret punches.

Component Integration: Procurement and factory-installation of specific breaker brands (ABB, Schneider, Siemens, Eaton) per project specifications.

Wiring Identification: Terminal markers, wire ferrules, and schematic-matching alphanumeric tags applied to every conductor.

 

Manufacturing & Quality Control

 

Production relies on standardized fabrication lines operating inside certified ISO 9001 facilities. Sheet metal undergoes automated laser cutting, CNC bending, and electrostatic epoxy powder coating (80 um dry film thickness) tested for salt spray resistance.

 

Quality assurance mandates a 3-step verification protocol:

Dimensional Inspection: Verifying enclosure dimensions, mounting hole locations, and cutout tolerances against CAD data using digital calipers and coordinate measuring tools.

Wiring Continuity Check: Automated optical and multimeter testing verifying correct phase sequencing and terminal torque values.

Dielectric Withstand Test: Applying 2.5kV AC between live parts and the grounded enclosure for 1 minute to confirm insulation integrity.

 

Certifications & Documentation

 

Standards Compliance: Built in accordance with IEC 61439-1/-2 and UL 508A structural guidelines (supporting documentation available for project file submission).

Material Traceability: Mill test certificates (MTC) provided for structural steel and copper busbars.

Shipment Documentation Package: Includes as-built electrical schematics, terminal connection maps, routine test reports, and component data sheets.

 

Packaging & Delivery

 

Units are bolted securely to fumigation-free plywood pallets, wrapped in anti-static moisture-barrier film, and enclosed with heavy-duty corrugated edge protectors. Loose components and keys are sealed inside internal document pockets. Standard export transit uses ocean freight or air cargo containers with shock-impact indicators attached to the outer crating. 

 

FAQ

 

Q: Can you build panels according to our proprietary UL 508A or IEC schematics?

A: Yes. Production operates strictly on a build-to-print basis, utilizing customer-supplied electrical schematics, layout drawings, and specified component BOMs.

Q: What is the standard lead time for batch orders?

A: Prototype validation takes 7 to 10 working days. Standard production runs require 3 to 4 weeks following drawing sign-off and component availability.

Q: How do you handle component substitutions if a specified breaker is out of stock?

A: No substitutions occur without explicit written approval. Equivalent alternative parts are proposed only with matching electrical ratings, physical dimensions, and interrupting capacities.

Q: What evidence is provided to prove the panels passed safety testing?

A: Every shipped panel includes an individual factory test report documenting dielectric strength results, insulation resistance values, and functional switching verification.

Q: Are the enclosures rated for outdoor installation?

A: Standard units are rated IP54 for indoor use. IP65 or NEMA 4X configurations utilizing SS304/SS316 stainless steel and rain hoods are available for outdoor or corrosive environments.

Q: What is the minimum order quantity (MOQ) for custom configurations?

A: The standard MOQ starts at 1 unit for prototype or project-specific builds, with tiered pricing applicable for recurring volume batches.

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