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Mounting Clip/Latch Component – Electrical Equipment Manufacturing

Component Specifications

Definition

A mounting clip or latch is a precision-engineered component used in electrical installations to provide secure, vibration-resistant mounting for circuit breakers and fuse holders. It typically features a spring-loaded or snap-fit mechanism that allows for quick installation and removal without tools, while maintaining reliable electrical contact and mechanical stability under operational stresses such as thermal cycling, shock, and vibration.

Working Principle

The mounting clip/latch operates on a spring tension or cam-locking principle. When engaged, it exerts controlled pressure against the mounting surface (e.g., DIN rail or panel), creating a secure mechanical grip. This ensures the electrical device remains fixed in place, maintains proper alignment for electrical connections, and may provide grounding continuity. Disengagement is achieved by manually releasing the latch mechanism, allowing for easy maintenance or replacement.

Materials

Typically made from spring steel (e.g., 1075 or 1095 carbon steel) for clips requiring high fatigue resistance, or stainless steel (e.g., 301 or 316) for corrosion resistance. Plastics like polyamide (PA66) or polycarbonate (PC) are used for insulating latches. Materials are often plated (e.g., zinc, nickel) or coated for enhanced durability and conductivity.

Technical Parameters

IP Rating IP20 (standard)
Width Range 17.5 mm to 35 mm
Mounting Type DIN Rail (EN 60715), Panel Mount
Material Grade Steel: ASTM A313; Plastic: UL94 V-0
Compatible Rail TH35, TH15, G32
Retention Force 20 N to 50 N
Operating Temperature -40°C to +85°C

Standards

ISO 60715, DIN EN 60715, IEC 60715, UL 508

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Mounting Clip/Latch.

Parent Products

This component is used in the following industrial products

Circuit Breaker / Fuse Holder

A protective device housing that secures and connects circuit breakers or fuses within a Power Distribution Unit (PDU) to interrupt electrical circuits during overloads or faults.

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Engineering Analysis

Risks & Mitigation

Incorrect installation leading to poor contact or arcing
Material fatigue causing loss of retention over time
Corrosion in humid environments compromising conductivity
Incompatibility with rail types causing misalignment

FMEA Triads

Trigger: Insufficient spring tension due to material fatigue
Failure: Device becomes loose, causing intermittent electrical connections or detachment
Mitigation: Use high-cycle fatigue-resistant materials (e.g., spring steel), conduct regular torque/force testing, and design with redundancy or locking features

Trigger: Corrosion on metal surfaces
Failure: Increased contact resistance, overheating, or failure to conduct ground paths
Mitigation: Apply corrosion-resistant coatings (e.g., zinc-nickel plating), use stainless steel, or specify for controlled environments

Trigger: Misalignment during installation
Failure: Improper seating on rail, leading to mechanical stress or poor electrical contact
Mitigation: Include alignment guides in design, provide clear installation instructions, and use fool-proofing features like asymmetric clips

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance

Dimensional tolerance ±0.2 mm for critical features; retention force tolerance ±10% of nominal value

Test Method

Vibration testing per IEC 60068-2-6; mechanical endurance testing (engage/disengage cycles) per IEC 60947-1; salt spray testing per ISO 9227 for corrosion resistance

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

Technical documentation

4/5

Manufacturing capability

4/5

Inspection readiness

5/5

Supplier transparency

3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the difference between a mounting clip and a latch?

A mounting clip is usually a simple spring-steel piece that snaps onto a rail, while a latch often includes a lever or cam mechanism for easier engagement and disengagement, providing tool-less operation.

Can mounting clips be reused?

Yes, most are designed for multiple cycles without loss of retention force, but inspect for wear or deformation after repeated use, especially in high-vibration environments.

How do I ensure proper grounding with a mounting clip?

Use clips with integrated grounding contacts or ensure the clip material and plating provide low-resistance paths; verify per IEC 60947-1 for earthing requirements.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

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 Clip/Latch