Industry-Verified Manufacturing Data (2026)

Actuator/Solenoid

Based on aggregated insights from multiple verified factory profiles within the CNFX directory, the standard Actuator/Solenoid used in the Electrical Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Actuator/Solenoid is characterized by the integration of Solenoid Coil and Plunger/Armature. In industrial production environments, manufacturers listed on CNFX commonly emphasize Copper (coil winding) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Electromechanical device that converts electrical signals into mechanical motion within a trip unit.

View Full Specifications Explore Manufacturing Sources

Product Specifications

Technical details and manufacturing context for Actuator/Solenoid

Definition
An actuator/solenoid in a trip unit is a critical component responsible for initiating the mechanical tripping action when an electrical fault is detected. It receives signals from the trip unit's sensing circuitry and generates the precise mechanical force needed to open the circuit breaker contacts, thereby interrupting current flow and protecting the electrical system.
Working Principle
When the trip unit detects an overcurrent, short circuit, or other fault condition, it sends an electrical signal to the solenoid coil. This energizes the coil, creating a magnetic field that pulls a plunger or armature. This linear mechanical motion is then transferred through a linkage mechanism to release the latch holding the circuit breaker contacts closed, causing them to open and interrupt the circuit.
Common Materials
Copper (coil winding), Electrical steel (core), Plastic (bobbin/housing), Spring steel (return spring)
Technical Parameters
  • Stroke length of the plunger/armature movement (mm) Per Request
Components / BOM
  • Solenoid Coil
    Converts electrical energy into magnetic field when energized
    Material: Copper wire, electrical steel core, plastic bobbin
  • Plunger/Armature
    Moves linearly within the magnetic field to generate mechanical force
    Material: Magnetic steel or soft iron
  • Return Spring
    Returns the plunger to its resting position when coil is de-energized
    Material: Spring steel
  • Housing
    Provides structural support and protects internal components
    Material: Thermoplastic or thermoset plastic
Engineering Reasoning
12-24 VDC, 0.5-2.0 A, 20-100 N force output, -40°C to +85°C ambient temperature
Coil insulation breakdown at 150°C, plunger seizure at 0.01 mm particulate contamination, permanent demagnetization at 120°C Curie point for ferrite magnets
Design Rationale: Joule heating (I²R) exceeding 2.5 W/cm² thermal dissipation capacity causes insulation degradation; Lorentz force (F = BIL) reduction due to eddy current losses at >100 Hz switching frequencies
Risk Mitigation (FMEA)
Trigger Armature sticking due to 5 μm ferrous particle accumulation in 0.1 mm air gap
Mode: Response time degradation from 15 ms to >50 ms, causing circuit breaker coordination failure
Strategy: IP67-rated enclosure with 10 μm filtration, hard chrome plating on plunger surface (Ra 0.4 μm)
Trigger Coil inter-turn short from 300 V/μs voltage transients exceeding 50 pF inter-winding capacitance rating
Mode: 40% reduction in magnetic flux density (from 1.2 T to 0.7 T), resulting in 30% force deficit
Strategy: ZnO varistor clamping at 28 V, bifilar winding with 0.1 mm polyester interlayer insulation

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Actuator/Solenoid.

industrial solenoid actuator for trip units electromechanical actuator electrical equipment copper coil solenoid manufacturing spring return actuator for electrical systems precision solenoid for trip unit motion

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Trip Unit
View system integration details

Industrial Ecosystem & Supply Chain DNA

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
other spec: Operating voltage: 12-24 VDC, Duty cycle: 100% continuous, Response time: <50 ms
temperature: -40°C to +85°C
Media Compatibility
✓ Hydraulic oil (ISO VG 32-68) ✓ Compressed air (dry, filtered) ✓ Water/glycol mixtures
Unsuitable: Corrosive chemicals or abrasive slurries
Sizing Data Required
  • Required force/stroke (N/mm)
  • Operating voltage/current (VDC/A)
  • Mounting configuration/space constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Coil Burnout
Cause: Overvoltage, excessive duty cycle, or poor heat dissipation leading to insulation breakdown and open circuit
Spool Valve Sticking
Cause: Contamination ingress (particles, moisture) or wear debris accumulation causing mechanical binding and erratic operation
Maintenance Indicators
  • Audible buzzing or humming during operation indicating coil issues or armature misalignment
  • Visible external leakage of hydraulic fluid or compressed air at seals/connections
Engineering Tips
  • Implement proper filtration (5-10 micron) in fluid systems and use protective boots on rod-style actuators to prevent contamination ingress
  • Install voltage monitoring with surge protection and ensure adequate cooling/ventilation to prevent thermal degradation of electrical components

Compliance & Manufacturing Standards

Reference Standards
ISO 4401: Hydraulic fluid power - Four-port directional control valves - Mounting surfaces ANSI/B93.5M: Hydraulic fluid power - Solenoid-operated directional control valves DIN EN 175301-803: Detail specification - Connectors, electrical, rectangular, with screw-locking, for industrial environments
Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Mounting surface flatness: 0.05mm
Quality Inspection
  • Pressure decay leak test
  • Electrical insulation resistance test

Factories Producing Actuator/Solenoid

Verified manufacturers with capability to produce this product in China

Add your factory

✓ 96% Supplier Capability Match Found

P Project Engineer from Australia Feb 18, 2026
★★★★★
"Standard OEM quality for Electrical Equipment Manufacturing applications. The Actuator/Solenoid arrived with full certification."
Technical Specifications Verified
S Sourcing Manager from Singapore Feb 15, 2026
★★★★★
"Great transparency on the Actuator/Solenoid components. Essential for our Electrical Equipment Manufacturing supply chain."
Technical Specifications Verified
P Procurement Specialist from Germany Feb 12, 2026
★★★★★
"The Actuator/Solenoid we sourced perfectly fits our Electrical Equipment Manufacturing production line requirements."
Technical Specifications Verified
Verification Protocol

“Feedback is collected from verified sourcing managers during RFQ (Request for Quote) and factory evaluation processes on CNFX. These reports represent historical performance data and technical audit summaries from our B2B manufacturing network.”

7 sourcing managers are analyzing this specification now. Last inquiry for Actuator/Solenoid from USA (1h ago).

Supply Chain Compatible Machinery & Devices

Circuit Breaker Arc Chute

Electrical component that extinguishes arcs in circuit breakers

Explore Specs →
Medium Voltage Switchgear Assembly Line

Automated production system for assembling medium voltage electrical switchgear.

Explore Specs →
Motor Terminal Block

Electrical connection interface for motor windings

Explore Specs →
PLC Control System

A digital industrial computer control system that monitors inputs, makes decisions based on a custom program, and controls outputs to automate industrial processes.

Explore Specs →

Frequently Asked Questions

What is the primary function of this actuator/solenoid in electrical equipment?

This electromechanical device converts electrical control signals into precise mechanical motion within trip units, enabling reliable switching and protection functions in electrical systems.

What materials ensure durability in this solenoid actuator?

The actuator features copper coil windings for efficient conductivity, electrical steel cores for magnetic performance, plastic bobbins/housings for insulation, and spring steel return springs for consistent mechanical operation.

How does the return spring contribute to the actuator's operation?

The spring steel return spring provides reliable resetting of the plunger/armature after actuation, ensuring consistent mechanical motion and extending the device's operational lifespan in repetitive cycling applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data Specifications verified by CNFX Industrial Index (v2.6.03) for Electrical Equipment Manufacturing sector.

Get Quote for Actuator/Solenoid

Request technical pricing, lead times, or customized specifications for Actuator/Solenoid directly from verified manufacturing units.

Your business information is encrypted and only shared with verified Actuator/Solenoid suppliers.

Thank you! Your message has been sent. We'll respond within 1–3 business days.
Thank you! Your message has been sent. We'll respond within 1–3 business days.

Need to Manufacture Actuator/Solenoid?

Connect with verified factories specializing in this product category

Add Your Factory Contact Us
Previous Product
Actuator/Sensor
Next Product
Adjustable Arm