Chassis and Heat Sink for Industrial Power Supplies

Product Specifications

Technical details and manufacturing context for Chassis and Heat Sink

Definition

The chassis and heat sink is a combined component that forms the physical structure and thermal regulation system for an industrial power supply unit. It consists of a protective metal housing (chassis) and an attached heat dissipation assembly (heat sink). The chassis provides mechanical protection, electromagnetic shielding, and mounting points, while the heat sink dissipates heat generated by internal electronic components to maintain optimal operating temperatures. This component is typically used in 19-inch rack-mounted power supplies, with standard dimensions of 482.6 mm x 88.1 mm x 300 mm (W x H x D) for a 2U height, conforming to IEC 60297. The material is typically aluminum alloy 6061-T6 (per ASTM B221), with an anodized surface treatment (Type II, clear or black) for corrosion resistance, per MIL-A-8625. Thermal resistance ranges from 0.5 to 1.2 K/W, and the operating temperature range is -40°C to 85°C, above which thermal shutdown may occur. The enclosure offers ingress protection ratings of IP54 to IP65 (per IEC 60529), and the weight is typically 5 to 8 kg. Mounting is via standard 19-inch rack with front flanges, and cooling is by natural convection using finned surfaces. Dimensional tolerance is ±0.5 mm (per ISO 2768-m), and surface flatness is 0.1 mm (per ISO 1101) to ensure proper thermal contact. These values are reference ranges for directory purposes; actual specifications must be confirmed with the manufacturer for the specific model and application.

Working Principle

The chassis serves as a rigid structural frame that houses and protects internal power supply components from environmental factors and physical damage. The heat sink, typically made of aluminum or copper with fins or other extended surfaces, conducts heat away from power semiconductors and other heat-generating components through thermal conduction, then dissipates it to the surrounding air via convection, maintaining safe operating temperatures. The design relies on natural convection, with fins increasing surface area for efficient heat transfer. The chassis also provides electromagnetic shielding and mounting points for integration into a rack system.

Common Materials

Aluminum alloy, Steel, Copper

Technical Parameters

Parameter	Typical range	Notes & selection driver
Dimensions (W x H x D)	482.6 x 88.1 x 300 mm	Standard 19-inch rack mount, 2U heightIEC 60297
Material	6061-T6	Aluminum alloy for heat dissipation and strengthASTM B221
Surface Treatment	Anodized	Type II, clear or black, corrosion resistanceMIL-A-8625
Thermal Resistance	0.5–1.2 K/W	Lower is better for heat dissipation
Max Operating Temperature	85 °C	Above this, thermal shutdown may occur
Min Operating Temperature	-40 °C	Below this, material brittleness increases
Ingress Protection	IP54–IP65	Dust-tight and water-resistantIEC 60529
Weight	5–8 kg	Affects mounting and handling
Mounting Type	19-inch rack	Standard rack mounting with front flangesIEC 60297
Cooling Method	Natural convection	Fins designed for passive cooling
Tolerance (Dimensions)	±0.5 mm	Ensures proper fit in rackISO 2768-m
Surface Flatness	0.1 mm	Critical for thermal contactISO 1101

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

Components / BOM

Chassis Frame Part
Primary structural support and enclosure for internal components

Material: Steel or aluminum
Heat Sink Fins Part
Increase surface area for improved heat dissipation through convection

Material: Aluminum or copper
Mounting Brackets Part
Secure the chassis to equipment racks or mounting surfaces

Material: Steel
Thermal Interface Part
Material between heat-generating components and heat sink to improve thermal conduction

Material: Thermal paste or pad

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Chassis and Heat Sink.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Power Supply Unit

View system integration details

Manufacturers of Chassis and Heat Sink

Manufacturer profiles associated with Chassis and Heat Sink.

Sourcing Chassis and Heat Sink from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

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

Check the legal entity, factory address, ownership, certifications, and direct contacts.

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

Frequently Asked Questions

What is the typical size of this chassis and heat sink?

The standard dimensions are 482.6 mm x 88.1 mm x 300 mm (W x H x D) for a 2U height, conforming to IEC 60297. However, actual dimensions may vary by model; always verify with the manufacturer.

What materials are used for the chassis and heat sink?

The material is typically aluminum alloy 6061-T6, per ASTM B221, with an anodized surface treatment (Type II, clear or black) for corrosion resistance, per MIL-A-8625. Copper may also be used for heat sink elements in some designs.

What is the thermal resistance range?

The thermal resistance is typically between 0.5 and 1.2 K/W. Lower values indicate better heat dissipation. Confirm the exact value for your specific model.

What ingress protection ratings are available?

The enclosure offers IP54 to IP65 ratings per IEC 60529, providing dust-tight and water-resistant protection. The specific rating depends on the model and configuration.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

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.

Buyer enquiry

Request manufacturing insight for Chassis and Heat Sink

Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.

Where it goes: Straight to the CNFX editorial desk, and to the manufacturer if this product is linked to a claimed profile. Nothing is broadcast to a supplier list.
Your details stay here: We do not sell or rent enquiry data, and we do not add you to a mailing list. Used only to answer this request.
No commission, no middleman: CNFX is a directory. We take no cut of any order and never negotiate on a supplier's behalf.
What we don't claim: A listing is not an endorsement. Qualify every supplier and verify every figure yourself before ordering.

pressure:	Atmospheric to 1.5 bar (sealed enclosure)
other spec:	Thermal resistance: 0.5-2.0°C/W (depends on airflow), airflow requirement: 0-200 LFM
temperature:	-40°C to +85°C ambient, component junction up to +125°C

Chassis and Heat Sink

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards