---
title: "Interlock Sensor"
industry: "Machinery and Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:INTERLOCK_SENSOR"
  data_integrity_hash: "3038d4b21ff64c8eb793309fab1a830e"
  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:INTERLOCK_SENSOR"
  data_source_uri: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/interlock-sensor.md"
  official_resource_url: "https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/interlock-sensor"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-24 VDC, -40°C to +85°C, IP67 rating"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 10
    unit: "M"
    consequence: "Contact oxidation due to atmospheric sulfur compounds forming non-conductive sulfide layers, dielectric breakdown from moisture ingress exceeding IP rating limits"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Electrochemical migration from flux residues in humid environments"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Conformal coating application meeting IPC-CC-830B Class 3 requirements with 0.2 mm minimum thickness"
  - node_2:
      trigger: "Mechanical wear from &gt;1,000,000 actuation cycles exceeding design life"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Gold-plated contacts with 0.8 μm minimum thickness and redundant contact design with 2 mm separation"
bom_nodes:
  sensing-head:
    type: "part"
    urn: "URN:CNFX:ME:SENSING_HEAD"
    interface_type: "physical-logic-coupled"
  actuatortarget:
    type: "component"
    urn: "URN:CNFX:ME:ACTUATORTARGET"
    interface_type: "physical-logic-coupled"
  housing:
    type: "component"
    urn: "URN:CNFX:ME:HOUSING"
    interface_type: "physical-logic-coupled"
  wiring-connection:
    type: "component"
    urn: "URN:CNFX:ME:WIRING_CONNECTION"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/interlock-sensor.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "cf9429a79d06b928355f2890cbdc293d196b3107ba4d2d9e9362317cc1536eb4"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Interlock Sensor

## 1. Technical Definition
A safety device that detects the position or status of a guard, door, or access point to prevent machine operation when unsafe conditions exist.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-24 VDC, -40°C to +85°C, IP67 rating**. Failure boundary: **Contact resistance &gt; 100 Ω, insulation resistance &lt; 10 MΩ at 500 VDC, switching frequency &gt; 100 Hz continuous**, Mechanism: **Contact oxidation due to atmospheric sulfur compounds forming non-conductive sulfide layers, dielectric breakdown from moisture ingress exceeding IP rating limits**.

### 2.1 Analytical Physics Model
Governed by the **Combined Measurement Uncertainty**:

> **Primary Equation**: $u_c = \sqrt{\sum u_i^2}$  
> **Engineering Impact**: Defines the precision confidence interval for inspection.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| u_i | Standard Uncertainty components | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Electrochemical migration from flux residues in humid environments | 8 | Short circuit between adjacent contacts causing false closed-circuit signals | Conformal coating application meeting IPC-CC-830B Class 3 requirements with 0.2 mm minimum thickness |
| Mechanical wear from &gt;1,000,000 actuation cycles exceeding design life | 8 | Increased contact bounce &gt; 5 ms causing intermittent signal loss | Gold-plated contacts with 0.8 μm minimum thickness and redundant contact design with 2 mm separation |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Sensing Head](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/sensing-head.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Programmable Logic Controller (PLC)**, **Safety Relay Module**, **Machine Guarding System**  
**Downstream Applications**: Industrial Robots, Packaging Machinery, Metal Forming Presses  

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

### Q: What is the primary function of an interlock sensor in machinery?
**A**: An interlock sensor detects the position or status of guards, doors, or access points to ensure machines cannot operate when safety barriers are open or removed, preventing accidents and injuries.

### Q: What materials make this interlock sensor suitable for industrial environments?
**A**: This sensor features a stainless steel housing for corrosion resistance and durability, polycarbonate lens for impact protection, copper wiring for reliable conductivity, and magnetic/electronic sensing elements for accurate detection.

### Q: How does the interlock sensor integrate with machinery control systems?
**A**: The sensor connects via wiring to the machine's control system, sending signals when guards are properly closed. If unsafe conditions are detected, it prevents machine startup or triggers immediate shutdown to maintain safety compliance.

## 6. Manufacturing Compliance
- CE MARKING (EU MACHINERY DIRECTIVE 2006/42/EC)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Interlock Sensor](https://cnfx.com/industry/machinery-and-equipment-manufacturing/product/interlock-sensor)**

### 🌐 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**: INTERLOCK_SENSOR | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: f8ad4c45
