INDUSTRY COMPONENT

Coil

A coil is an electromagnetic component that converts electrical energy into magnetic force, used in trip solenoids for actuation.

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Component Specifications

Definition
A coil is an electrical conductor wound into a series of loops or turns, designed to generate a magnetic field when an electric current passes through it. In industrial applications, such as trip solenoids, it serves as the core electromagnetic actuator that produces linear or rotary motion by attracting or repelling a ferromagnetic plunger or armature, enabling mechanical switching or control functions in machinery.
Working Principle
The coil operates on the principle of electromagnetism: when an electric current flows through the coiled conductor, it generates a magnetic field proportional to the current and number of turns. This magnetic field interacts with a movable ferromagnetic core (e.g., in a trip solenoid), creating a force that moves the core to perform work, such as tripping a mechanism or actuating a valve.
Materials
Typically made from copper or aluminum wire with enamel or polymer insulation, wound around a bobbin of thermoplastic (e.g., nylon, PBT) or thermoset material. The core may include ferromagnetic materials like iron or steel for enhanced magnetic flux.
Technical Parameters
  • Inductance 10-500 mH
  • Resistance 5-100 Ohms
  • Wire Gauge AWG 18-30
  • Insulation Class Class B (130°C) or higher
  • Operating Voltage 12-240 V DC/AC
  • Temperature Range -40°C to 150°C
Standards
ISO 9001, IEC 60085, DIN EN 60317

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Coil.

electromagnetic coil solenoid coil trip solenoid component industrial coil specifications coil manufacturing standards Coil Coil in Electrical Equipment Manufacturing

Parent Products

This component is used in the following industrial products

Trip Solenoid

Electromagnetic actuator that triggers circuit breaker disconnection when abnormal conditions are detected.

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Solenoid Valve Bank

A centralized assembly of multiple solenoid valves used to control fluid flow in a pressure testing system.

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Relay/Switch

An electromechanical or solid-state device that opens or closes electrical circuits to control the flow of current within a control unit or thermostat.

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Engineering Analysis

Risks & Mitigation
  • Overheating due to excessive current
  • Insulation breakdown from voltage spikes
  • Mechanical wear from repeated actuation
FMEA Triads
Trigger: Overcurrent or poor heat dissipation
Failure: Coil burnout or insulation failure
Mitigation: Implement current limiting, use thermal protection devices, and ensure adequate ventilation.
Trigger: Moisture ingress or chemical exposure
Failure: Corrosion or short circuits
Mitigation: Apply conformal coatings, use sealed enclosures, and select corrosion-resistant materials.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±5% on electrical resistance, ±10% on inductance
Test Method
Electrical testing per IEC 60085, thermal cycling per ISO 16750, and mechanical endurance testing.

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 primary function of a coil in a trip solenoid?

The coil generates a magnetic field to actuate the solenoid's plunger, enabling mechanical tripping or switching actions in industrial equipment.

How do material choices affect coil performance?

Copper wire offers high conductivity and efficiency, while insulation materials determine thermal and electrical durability; core materials influence magnetic strength and response time.

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.

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Clamping Screw Coil Bobbin