Mounting Frame / Chassis: Load Capacity 50-500 kg static load

Component Specifications

Definition

A mounting frame or chassis is a rigid structural component designed to securely hold and organize all internal elements of a Power Distribution Unit (PDU), including circuit breakers, busbars, wiring, and monitoring devices. It provides mechanical support, ensures proper alignment, facilitates heat dissipation, and protects components from physical damage and environmental factors in industrial and commercial electrical installations.

Working Principle

The mounting frame/chassis functions as the primary structural backbone of a PDU, distributing mechanical loads, maintaining component positioning through precise mounting points, and enabling modular assembly. It ensures electrical safety by providing proper grounding paths and isolation between conductive parts, while its design often incorporates ventilation features for thermal management of heat-generating components.

Materials

Typically constructed from cold-rolled steel (CRS) with zinc plating or powder coating for corrosion resistance; aluminum alloys (e.g., 6061-T6) for lightweight applications; stainless steel (e.g., 304/316) for harsh environments. Thickness ranges from 1.2mm to 3.0mm depending on load requirements.

Technical Parameters

Parameter	Typical range	Notes & selection driver
IP Rating	IP20 standard, up to IP54 with sealed variants
Dimensions	Standard 19-inch rack width (482.6mm), depths 300-1000mm, heights 1U-42U
Load Capacity	50-500 kg static load
Surface Finish	RAL 9005 black powder coat, 60-80μm thickness
Mounting Options	Front/rear rails, slide brackets, DIN rail compatibility

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO 9001, IEC 60297, DIN 41494, UL 508A

Parent Products

This component is used in the following industrial products

Power Distribution Unit

A modular electrical component within a control cabinet that distributes power from a main supply to multiple branch circuits.

View Product Details

Filter Capacitor Bank

A bank of capacitors used to smooth and filter the rectified DC output voltage by reducing ripple and noise.

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Engineering Analysis

Risks & Mitigation

Inadequate load capacity causing structural failure
Poor corrosion resistance in humid environments
Improper grounding leading to electrical hazards
Insufficient ventilation causing component overheating

FMEA Triads

Trigger: Material fatigue from vibration or cyclic loading
Failure: Crack development in frame welds or joints
Mitigation: Implement finite element analysis (FEA) during design, use reinforced corner brackets, specify higher-grade materials for high-vibration environments

Trigger: Galvanic corrosion between dissimilar metals
Failure: Structural weakening and potential electrical continuity loss
Mitigation: Use compatible metal combinations, apply insulating coatings at interfaces, specify stainless steel fasteners for aluminum frames

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5mm for mounting hole positions, ±1.0mm for overall dimensions

Test Method

Static load testing per IEC 61587, salt spray testing per ISO 9227, ground continuity testing per IEC 60950

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Mounting Frame / Chassis

Manufacturer profiles associated with Mounting Frame / Chassis.

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Gland Body

A gland body is the main housing component of an aluminum cable gland that provides mechanical protection and environmental sealing for electrical cables entering enclosures.

Frequently Asked Questions

What are the key considerations when selecting a PDU mounting frame?

Key factors include load capacity for components, material corrosion resistance for the operating environment, compatibility with standard rack sizes (19-inch), ventilation requirements for thermal management, and compliance with electrical safety standards like IEC 60297.

Can mounting frames be customized for specific PDU configurations?

Yes, manufacturers typically offer customization options including modified hole patterns for component mounting, additional ventilation cutouts, custom powder coat colors, integrated cable management features, and non-standard dimensions for specialized applications.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Mounting Frame / Chassis