INDUSTRY COMPONENT

Terminal Pins

Terminal pins are conductive metal components that provide electrical connections in refrigerator compressor thermal overload protectors.

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Component Specifications

Definition
Terminal pins are precision-engineered conductive components designed to establish secure electrical connections between the thermal overload protector and the compressor circuit in refrigeration systems. They serve as the interface points for power supply and control signals, ensuring reliable operation of the protective mechanism that prevents compressor damage from overheating.
Working Principle
Terminal pins function by providing a low-resistance electrical pathway between connected components. When installed in a thermal overload protector, they transmit electrical current to the bimetallic strip or thermal element. When excessive temperature occurs, the protector interrupts the circuit through these pins, cutting power to the compressor to prevent damage.
Materials
Copper alloy (typically C11000 or C26000) with tin or silver plating for corrosion resistance and improved conductivity. Alternative materials include brass or phosphor bronze for specific applications.
Technical Parameters
ParameterTypical rangeNotes & selection driver
Pin Length15mm ±0.5mm
Pin Diameter2.8mm ±0.1mm
Current Rating10-20A
Voltage Rating250V AC
Temperature Range-40°C to 125°C
Contact Resistance<5mΩ
Insulation Resistance>100MΩ

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 8092, DIN 46247, UL 310, IEC 60947

Parent Products

This component is used in the following industrial products

Refrigerator Compressor Thermal Overload Protector

The Refrigerator Compressor Thermal Overload Protector is a safety-critical component used in hermetic compressor motors of domestic refrigeration appliances.

View Product Details

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This industrial electromagnetic relay coil assembly is a precision component designed for use in industrial control relays.

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Signal Filter

An electronic component that selectively passes or blocks specific frequency ranges from an input signal.

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Engineering Analysis

Risks & Mitigation
  • Poor electrical contact leading to overheating
  • Corrosion causing increased resistance
  • Mechanical stress causing pin deformation
  • Incompatible materials causing galvanic corrosion
FMEA Triads
Trigger: Insufficient plating thickness or poor plating quality
Failure: Increased contact resistance leading to localized heating
Mitigation: Implement strict plating thickness QC checks and corrosion testing
Trigger: Improper installation torque or alignment
Failure: Loose connections causing arcing and intermittent operation
Mitigation: Provide precise installation specifications and torque requirements
Trigger: Material incompatibility with connected components
Failure: Galvanic corrosion leading to connection failure
Mitigation: Specify compatible material combinations and protective coatings

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance
±0.1mm diameter, ±0.5mm length, contact resistance variation <10%
Test Method
ASTM B667 for contact resistance, IEC 60068-2-11 for salt spray corrosion, UL 310 for electrical safety

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 Terminal Pins

2 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

JAYE INDUSTRY
Huizhou, Guangdong, CN
Founded 2009
CE UL MET ISO 9001:2015 +1
Also makes: Temperature Controller, Silicone Rubber, Thermocouple and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry
Tuling
Dongguan, Guangdong, CN
Also makes: Automotive Components, Aluminum Heat Sink, Wire Connectors and 3 more
Listed on the company's own website · profile compiled by CNFX from public sources
View profile Send enquiry

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

Related Components

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A terminal base is an insulating support structure that holds and organizes electrical terminals in motor terminal blocks, providing secure connections and circuit management.
Contact Plate
A conductive plate in motor terminal blocks that establishes electrical contact between conductors.
Marking Strip
A durable marking strip used for terminal identification in motor terminal blocks to ensure proper electrical connections and safety compliance.
Gland Body
A gland body is the main housing component of an aluminum cable gland that provides mechanical protection and environmental sealing for electrical cables entering enclosures.

Frequently Asked Questions

What is the primary function of terminal pins in thermal overload protectors?

Terminal pins provide the electrical connection points that allow the thermal overload protector to monitor compressor temperature and interrupt power when dangerous overheating occurs, preventing compressor failure.

Why are terminal pins typically plated with tin or silver?

Tin or silver plating reduces oxidation, improves electrical conductivity, enhances corrosion resistance, and ensures reliable long-term connections in the humid refrigeration environment.

Can terminal pins from different manufacturers be interchanged?

While physically similar, terminal pins should only be interchanged when they meet identical electrical specifications, dimensional tolerances, and material requirements to ensure proper function and safety.

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.

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