---
title: "Solenoid Coil Assembly"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:SOLENOID_COIL_ASSEMBLY"
  data_integrity_hash: "1a76a632cb5bc950f527748120e5908b"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:SOLENOID_COIL_ASSEMBLY"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/solenoid-coil-assembly.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/solenoid-coil-assembly"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "12-240 VDC, 24-480 VAC, 50/60 Hz, -40°C to +85°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 155
    unit: "°C"
    consequence: "Insulation breakdown due to thermal aging (Arrhenius equation: reaction rate doubles per 10°C rise above rated temperature), magnetic saturation at 1.6-2.1 T (silicon steel core limit), copper wire annealing at 200°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Continuous operation at 110% rated voltage causing 121% power dissipation (P=V²/R)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Embedded PTC thermistor with 130°C trip point in coil winding, Class H (180°C) insulation system"
  - node_2:
      trigger: "Mechanical shock exceeding 50g for 11ms duration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Varnish impregnation under 0.1 MPa vacuum, epoxy encapsulation with 80 Shore D hardness"
bom_nodes:
  coil-winding:
    type: "component"
    urn: "URN:CNFX:ME:COIL_WINDING"
    interface_type: "physical-logic-coupled"
  bobbin:
    type: "component"
    urn: "URN:CNFX:ME:BOBBIN"
    interface_type: "physical-logic-coupled"
  terminal-assembly:
    type: "component"
    urn: "URN:CNFX:ME:TERMINAL_ASSEMBLY"
    interface_type: "physical-logic-coupled"
  insulation-sleevetape:
    type: "component"
    urn: "URN:CNFX:ME:INSULATION_SLEEVETAPE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS"
    scope: "Verified Engineering Specification"
  - standard: "CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/solenoid-coil-assembly.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "105c14c993929de6c6fea311ad637d7e480e70b8bf735cf94fc3219f8d99f849"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Solenoid Coil Assembly

## 1. Technical Definition
Electromagnetic component that converts electrical energy into mechanical motion to actuate contactor switching

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **12-240 VDC, 24-480 VAC, 50/60 Hz, -40°C to +85°C ambient temperature**. Failure boundary: **Coil temperature exceeding 155°C (Class F insulation limit), magnetic flux density dropping below 0.8 T, coil resistance change &gt;15% from nominal**, Mechanism: **Insulation breakdown due to thermal aging (Arrhenius equation: reaction rate doubles per 10°C rise above rated temperature), magnetic saturation at 1.6-2.1 T (silicon steel core limit), copper wire annealing at 200°C**.

### 2.1 Analytical Physics Model
Governed by the **Joule Heating & Thermal Resistance**:

> **Primary Equation**: $P = I^2 R = \frac{V^2}{R}$  
> **Engineering Impact**: Governs heating element sizing for shrink tunnels/sealers.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| I | Current | Engineering Constant |
| R | Resistance | Engineering Constant |
| V | Voltage | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Continuous operation at 110% rated voltage causing 121% power dissipation (P=V²/R) | 8 | Insulation degradation leading to inter-turn short circuit | Embedded PTC thermistor with 130°C trip point in coil winding, Class H (180°C) insulation system |
| Mechanical shock exceeding 50g for 11ms duration | 8 | Core lamination separation increasing magnetic reluctance by &gt;40% | Varnish impregnation under 0.1 MPa vacuum, epoxy encapsulation with 80 Shore D hardness |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Coil Winding Machine**, **Vacuum Impregnation System**, **Electrical Testing Equipment**  
**Downstream Applications**: Industrial Contactors, Motor Starters, Circuit Breakers  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in your solenoid coil assemblies?
**A**: Our solenoid coil assemblies feature enamel-insulated copper wire for efficient conductivity, durable PBT or nylon bobbins for structural integrity, and quality terminal pins with proper insulation materials like varnish, tape, or sleeves.

### Q: How does a solenoid coil assembly work in electrical equipment?
**A**: The solenoid coil assembly converts electrical energy into mechanical motion through electromagnetic induction. When energized, it creates a magnetic field that actuates the contactor mechanism, enabling reliable switching in electrical control systems.

### Q: Can you customize solenoid coil assemblies for specific applications?
**A**: Yes, we offer customization options including different wire gauges, bobbin materials, insulation types, and terminal configurations to meet specific voltage, temperature, and environmental requirements for various industrial applications.

## 6. Manufacturing Compliance
- ISO 9001:2015 QUALITY MANAGEMENT SYSTEMS
- CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Solenoid Coil Assembly](https://cnfx.com/industry/electrical-equipment-manufacturing/product/solenoid-coil-assembly)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: SOLENOID_COIL_ASSEMBLY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 2be0e558
