Bridge/Jumper: Temperature Range -40°C to +105°C

Q: What is the difference between a bridge and a jumper in terminal blocks?

Bridges typically refer to fixed connections between adjacent terminals, while jumpers are removable or configurable connections. However, the terms are often used interchangeably in industrial contexts.

Q: Can bridge/jumpers be used for different terminal block brands?

No, bridge/jumpers are typically brand-specific due to variations in terminal pitch, dimensions, and locking mechanisms. Always use manufacturer-recommended components.

Q: What safety standards apply to bridge/jumpers?

Key standards include IEC 60947-7-1 for terminal blocks, UL 1059 for terminal connectors, and DIN 46277 for dimensions and performance requirements.

Component Specifications

Definition

A bridge/jumper is a conductive component designed to electrically connect two or more adjacent terminals within a terminal block assembly. It serves to establish circuit paths, create common connections, or configure terminal blocks for specific wiring schemes. Typically made from metal with insulating covers, it ensures reliable electrical continuity while maintaining safety standards in industrial control panels and electrical distribution systems.

Working Principle

The bridge/jumper operates on the principle of electrical conductivity, providing a low-resistance path between terminals. When installed across adjacent terminals, it creates a continuous electrical connection, allowing current to flow between them. This enables functions like busbar connections, common grounding points, or parallel circuit configurations without requiring individual wire connections for each terminal.

Materials

Copper alloy (typically brass or phosphor bronze) with tin or nickel plating for conductivity and corrosion resistance. Insulating covers are made from polyamide (PA66), polycarbonate (PC), or other flame-retardant thermoplastics rated for industrial temperatures.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Pitch	5mm, 5.08mm, 10mm, 10.16mm
Current Rating	10A to 32A
Voltage Rating	Up to 600V AC/DC
Temperature Range	-40°C to +105°C
Contact Resistance	<5mΩ
Wire Compatibility	0.5mm² to 6mm²
Insulation Resistance	>1000MΩ

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, DIN 46277, IEC 60947-7-1, UL 1059

Parent Products

This component is used in the following industrial products

Terminal Block Assembly

A modular assembly of terminal blocks for connecting and distributing electrical wires within control panels.

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Engineering Analysis

Risks & Mitigation

Electrical short circuits
Overheating due to improper current rating
Corrosion in humid environments
Mechanical failure from vibration
Incompatible installation causing poor contact

FMEA Triads

Trigger: Incorrect current rating selection
Failure: Overheating and thermal damage
Mitigation: Verify current requirements and select bridge/jumper with appropriate rating

Trigger: Poor installation or loose connection
Failure: Intermittent electrical continuity
Mitigation: Follow manufacturer torque specifications and use proper installation tools

Trigger: Environmental corrosion
Failure: Increased contact resistance
Mitigation: Select plated materials and use protective covers in harsh environments

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±0.1mm for critical dimensions, contact resistance variation <10% of specified value

Test Method

Electrical continuity test at rated current, dielectric strength test per IEC 60947-7-1, mechanical durability test (insertion/removal cycles)

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 Bridge/Jumper

Manufacturer profiles associated with Bridge/Jumper.

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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 difference between a bridge and a jumper in terminal blocks?