---
title: "Circuit Breaker/Switch"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:CIRCUIT_BREAKERSWITCH"
  data_integrity_hash: "f3ac5632708d7ee27442c59866db94ba"
  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:CIRCUIT_BREAKERSWITCH"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/circuit-breakerswitch.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/circuit-breakerswitch"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.1-100 kA at 120-1000 V AC/DC"
    unit: "A"
engineering_limits:
  max_safe_operating_point:
    value: 100
    unit: "ms"
    consequence: "Arc plasma formation exceeding 6000 K causing contact erosion, or thermal runaway in bimetal elements at &gt;150°C"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Transient overcurrent of 10x nominal rating for &gt;5 cycles"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Current-limiting design with magnetic blowout coils and arc chutes"
  - node_2:
      trigger: "Dielectric contamination reducing surface resistivity to &lt;10^9 Ω·cm"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hermetically sealed construction with SF6 gas at 0.5 MPa"
bom_nodes:
  contacts:
    type: "component"
    urn: "URN:CNFX:ME:CONTACTS"
    interface_type: "physical-logic-coupled"
  operating-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:OPERATING_MECHANISM"
    interface_type: "physical-logic-coupled"
  trip-unit:
    type: "part"
    urn: "URN:CNFX:ME:TRIP_UNIT"
    interface_type: "physical-logic-coupled"
  arc-chute:
    type: "part"
    urn: "URN:CNFX:ME:ARC_CHUTE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/circuit-breakerswitch.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "11597be7ceb3e89f42832435edf0a6bcee9ca46405c28c9e45685780ba8abf23"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Circuit Breaker/Switch

## 1. Technical Definition
A protective electrical device that automatically interrupts current flow in a circuit during overload or short circuit conditions, or a manual control device for opening/closing the circuit.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.1-100 kA at 120-1000 V AC/DC**. Failure boundary: **Current exceeding 110% of rated interrupting capacity for &gt;100 ms, or dielectric breakdown at &gt;1.5 kV/mm insulation stress**, Mechanism: **Arc plasma formation exceeding 6000 K causing contact erosion, or thermal runaway in bimetal elements at &gt;150°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 |
| :--- | :--- | :--- | :--- |
| Transient overcurrent of 10x nominal rating for &gt;5 cycles | 8 | Contact welding due to arc energy &gt;50 kJ | Current-limiting design with magnetic blowout coils and arc chutes |
| Dielectric contamination reducing surface resistivity to &lt;10^9 Ω·cm | 8 | Creepage discharge at 0.8 kV/mm along polymer housing | Hermetically sealed construction with SF6 gas at 0.5 MPa |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Operating mechanism](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/operating-mechanism.md) `(Standalone System)`
- [Trip unit](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/trip-unit.md) `(Standalone System)`
- [Arc chute](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/arc-chute.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Automatic Assembly Machine**, **High-Precision Stamping Press**, **Vacuum Impregnation System**  
**Downstream Applications**: Electrical Distribution Panels, Industrial Control Systems, Power Generation Equipment  

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

### Q: What is the primary function of this circuit breaker/switch?
**A**: It automatically interrupts electrical current during overload or short circuit conditions to prevent damage and ensure safety, while also serving as a manual control device for opening or closing the circuit.

### Q: What materials are used in the construction of this circuit breaker?
**A**: It features a durable thermoset plastic housing, reliable copper alloy contacts, a responsive bimetallic strip for thermal protection, and an electromagnetic coil for magnetic trip functionality.

### Q: What are the key components in the Bill of Materials (BOM)?
**A**: The main components include contacts for current conduction, an operating mechanism for manual control, a trip unit for overload detection, and an arc chute to safely extinguish electrical arcs during interruption.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Circuit Breaker/Switch](https://cnfx.com/industry/electrical-equipment-manufacturing/product/circuit-breakerswitch)**

### 🌐 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**: CIRCUIT_BREAKERSWITCH | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f5846c0e
