---
title: "Trip Solenoid"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TRIP_SOLENOID"
  data_integrity_hash: "fe9083083bfcc547f7f373a50414688a"
  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:TRIP_SOLENOID"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/trip-solenoid.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/trip-solenoid"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "24-48 VDC, 0.5-2.0 A coil current, 15-85°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 150
    unit: "°C"
    consequence: "Joule heating exceeding Curie temperature (358°C for iron) demagnetizes core, Lorentz force reduction below 0.8 N prevents armature movement"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Coil insulation degradation from 150°C thermal cycling"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Class H (180°C) polyimide-nomex composite insulation with 0.2 mm inter-turn spacing"
  - node_2:
      trigger: "Armature guide wear exceeding 50μm clearance from 100 m/s² vibration"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hardened 440C stainless steel guides with 0.1 Ra surface finish and 0.5 mm PTFE lubrication reservoirs"
bom_nodes:
  coil:
    type: "component"
    urn: "URN:CNFX:ME:COIL"
    interface_type: "physical-logic-coupled"
  plungerarmature:
    type: "component"
    urn: "URN:CNFX:ME:PLUNGERARMATURE"
    interface_type: "physical-logic-coupled"
  bobbin:
    type: "component"
    urn: "URN:CNFX:ME:BOBBIN"
    interface_type: "physical-logic-coupled"
  core:
    type: "component"
    urn: "URN:CNFX:ME:CORE"
    interface_type: "physical-logic-coupled"
  return-spring:
    type: "component"
    urn: "URN:CNFX:ME:RETURN_SPRING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "CE MARKING: DIRECTIVE 2006/42/EC ON MACHINERY SAFETY"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/trip-solenoid.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "d768d8e5e6cba9b9f35d1c1eccdec28693b8c2dc581592f59be979346617d62f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Trip Solenoid

## 1. Technical Definition
Electromagnetic actuator that triggers circuit breaker disconnection when abnormal conditions are detected.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **24-48 VDC, 0.5-2.0 A coil current, 15-85°C ambient temperature**. Failure boundary: **Coil insulation breakdown at 150°C, mechanical fatigue at 100,000 actuation cycles, armature sticking at &gt;50μm particulate contamination**, Mechanism: **Joule heating exceeding Curie temperature (358°C for iron) demagnetizes core, Lorentz force reduction below 0.8 N prevents armature movement**.

### 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 |
| :--- | :--- | :--- | :--- |
| Coil insulation degradation from 150°C thermal cycling | 8 | Inter-turn short circuit reducing magnetic flux density below 0.8 T | Class H (180°C) polyimide-nomex composite insulation with 0.2 mm inter-turn spacing |
| Armature guide wear exceeding 50μm clearance from 100 m/s² vibration | 8 | Mechanical binding preventing 5 ms response time | Hardened 440C stainless steel guides with 0.1 Ra surface finish and 0.5 mm PTFE lubrication reservoirs |

## 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**, **Automatic Assembly System**, **Electrical Testing Equipment**  
**Downstream Applications**: Circuit Breakers, Protective Relays, Motor Starters  

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

### Q: What is the primary function of a trip solenoid in electrical equipment?
**A**: A trip solenoid serves as an electromagnetic actuator that automatically triggers circuit breaker disconnection when abnormal electrical conditions like overloads or short circuits are detected, preventing equipment damage and ensuring safety.

### Q: What materials are used in trip solenoid construction and why?
**A**: Trip solenoids typically use copper wire for efficient coil winding, electrical steel for the magnetic core to minimize energy loss, plastic for bobbin/housing insulation, and spring steel for the return spring to ensure reliable reset after activation.

### Q: How do I select the right trip solenoid for my circuit breaker application?
**A**: Consider voltage rating, current capacity, response time, mounting compatibility, and environmental conditions. Consult manufacturer specifications and ensure the solenoid matches your circuit breaker's trip mechanism requirements for optimal protection.

## 6. Manufacturing Compliance
- CE MARKING: DIRECTIVE 2006/42/EC ON MACHINERY SAFETY

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

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

> **Reference ID**: TRIP_SOLENOID | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: e62b52dd
