Cover/Shield: Operating Temperature -40°C to 85°C

Component Specifications

Definition

A protective component designed to enclose terminal connections within electrical or electronic equipment, preventing accidental contact, shielding against electromagnetic interference (EMI), and offering resistance to dust, moisture, and mechanical impacts. It ensures safe operation by isolating live terminals and maintaining structural integrity of the housing assembly.

Working Principle

Functions as a barrier through physical enclosure and material properties. It isolates electrical terminals from external elements, prevents short circuits, reduces EMI through conductive or shielded materials, and often incorporates snap-fit or screw-fastening mechanisms for secure attachment and easy maintenance access.

Materials

Typically made from engineering plastics (e.g., polycarbonate, ABS, PBT) for insulation and lightweight properties, or metals (e.g., aluminum, stainless steel) for EMI shielding and durability. Materials may include UL94 V-0 rated plastics for flame retardancy and IP-rated seals for environmental protection.

Technical Parameters

Parameter	Typical range	Notes & selection driver
IP Rating	IP65
Mounting Type	Snap-fit or screw-fastened
Flammability Rating	UL94 V-0
Operating Temperature	-40°C to 85°C
EMI Shielding Effectiveness	Up to 40 dB

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

Standards

IEC 60529, UL 94

Parent Products

This component is used in the following industrial products

Terminal Housing

The terminal housing is the protective outer casing component of an output terminal block that encloses and insulates the electrical terminals.

View Product Details

Engineering Analysis

Risks & Mitigation

Electrical shock if improperly installed
Overheating due to poor ventilation
Material degradation under UV exposure

FMEA Triads

Trigger: Incorrect material selection
Failure: Cracking or melting under high temperature
Mitigation: Use high-temperature resistant materials like PBT or metals, and verify operating conditions.

Trigger: Poor sealing design
Failure: Ingress of moisture leading to corrosion
Mitigation: Implement IP-rated seals and regular inspection protocols.

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.5 mm for dimensional fit

Test Method

IP testing per IEC 60529, flammability testing per UL 94, and EMI shielding tests per IEC 61000-4-3

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.

Manufacturers of Cover/Shield

Manufacturer profiles associated with Cover/Shield.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the primary function of a terminal housing cover?

To prevent accidental contact with live terminals, protect against environmental factors like dust and moisture, and provide EMI shielding to maintain signal integrity.

How do I select the right material for a terminal cover?

Choose based on application needs: plastics for insulation and cost-effectiveness, metals for durability and EMI shielding, and ensure compliance with industry standards for flammability and environmental ratings.

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.

Cover/Shield