Conduit Gland/Bushing: Cable Range 3mm to 40mm diameter

Component Specifications

Definition

A conduit gland, also known as a bushing, is a mechanical fitting designed to provide a secure, sealed entry point for electrical cables into conduit systems. It prevents the ingress of dust, moisture, and other contaminants while offering strain relief and grounding continuity in industrial wire harness installations. These components ensure electrical safety and system integrity in harsh environments.

Working Principle

The conduit gland works by compressing a sealing element (such as a rubber gasket or neoprene seal) around the cable when the gland nut is tightened. This creates a watertight and dustproof seal while mechanically securing the cable to prevent pull-out. The metallic body provides grounding continuity between the cable armor (if present) and the conduit system.

Materials

Body: Brass, stainless steel (AISI 304/316), galvanized steel, or nylon. Sealing elements: Neoprene, nitrile rubber (NBR), silicone, or EPDM. Locknuts and washers: Typically matching the body material.

Technical Parameters

Parameter	Typical range	Notes & selection driver
IP Rating	IP68 (common for industrial applications)
Cable Range	3mm to 40mm diameter
Thread Size	M16 to M63 metric or NPT 1/2" to 2"
Certifications	ATEX, IECEx for hazardous areas
Voltage Rating	Up to 1000V AC/DC
Temperature Range	-40°C to +100°C (varies by material)

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 60079, UL 514B, DIN EN 62444

Parent Products

This component is used in the following industrial products

Industrial Wire Harness Conduit Fitting

A mechanical component that securely connects and seals conduit to electrical enclosures or junction boxes.

View Product Details

Engineering Analysis

Risks & Mitigation

Improper installation leading to seal failure
Material incompatibility causing corrosion
Incorrect sizing resulting in poor cable retention

FMEA Triads

Trigger: Overtightening during installation
Failure: Cable insulation damage or seal deformation
Mitigation: Use torque-controlled tools and follow manufacturer installation guidelines

Trigger: Chemical exposure incompatible with sealing material
Failure: Seal degradation and loss of environmental protection
Mitigation: Select appropriate seal material (EPDM for oils, silicone for high temperatures)

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Thread tolerance: 6g for metric, Class 2A for NPT. Cable diameter tolerance: ±0.5mm

Test Method

IP testing per IEC 60529, mechanical testing per IEC 62444, material verification per relevant ASTM standards

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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Manufacturers of Conduit Gland/Bushing

Manufacturer profiles associated with Conduit Gland/Bushing.

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Frequently Asked Questions

What is the difference between a conduit gland and a bushing?

While often used interchangeably, a gland typically provides sealing and strain relief, while a bushing primarily prevents cable abrasion at conduit entry points. Many modern products combine both functions.

How do I select the right conduit gland for my application?

Consider cable diameter, environmental conditions (IP rating), material compatibility, thread type, and any required certifications (like ATEX for hazardous areas). Always follow manufacturer specifications.

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.

Conduit Gland/Bushing