---
title: "Forced-Guided Mechanism"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FORCED_GUIDED_MECHANISM"
  data_integrity_hash: "389ffa9fe085c8157729199011bee0d6"
  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:FORCED_GUIDED_MECHANISM"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/forced-guided-mechanism.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/forced-guided-mechanism"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-2.5 mm contact gap, 0.1-0.3 N·m actuation torque, -40°C to +85°C ambient temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 3.0
    unit: "mm"
    consequence: "Mechanical override due to contact welding (exceeding 50 N force breaks positive guidance), plastic deformation of guide rails (exceeding 200 MPa yield strength), wear-induced clearance accumulation (exceeding 0.1 mm total play)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Contact welding due to inrush currents exceeding 100 A for 10 ms"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Current-limiting resistors (5 Ω, 25 W) in series with contacts, arc suppression circuits (RC snubbers: 100 nF, 100 Ω)"
  - node_2:
      trigger: "Guide rail wear from cyclic loading exceeding 10⁶ operations at 0.3 N·m"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Hardened steel guide rails (Rockwell C 60-62), PTFE lubrication (coefficient of friction &lt;0.1), wear sensors monitoring clearance (0.01 mm resolution)"
bom_nodes:
  contact-carrier:
    type: "component"
    urn: "URN:CNFX:ME:CONTACT_CARRIER"
    interface_type: "physical-logic-coupled"
  guiding-pinsrails:
    type: "component"
    urn: "URN:CNFX:ME:GUIDING_PINSRAILS"
    interface_type: "physical-logic-coupled"
  mechanical-interlock-block:
    type: "component"
    urn: "URN:CNFX:ME:MECHANICAL_INTERLOCK_BLOCK"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/forced-guided-mechanism.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "be644a9d0a3f02ec5e4fdbc23fb99f93a83868bc232b744a56810b6e52f58950"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Forced-Guided Mechanism

## 1. Technical Definition
A safety-critical mechanism in safety relays that ensures positive-guided contact operation to prevent dangerous failures.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-2.5 mm contact gap, 0.1-0.3 N·m actuation torque, -40°C to +85°C ambient temperature**. Failure boundary: **Contact gap exceeds 3.0 mm (loss of positive guidance), actuation torque falls below 0.05 N·m (insufficient force for positive engagement), contact welding force exceeds 50 N (mechanical override)**, Mechanism: **Mechanical override due to contact welding (exceeding 50 N force breaks positive guidance), plastic deformation of guide rails (exceeding 200 MPa yield strength), wear-induced clearance accumulation (exceeding 0.1 mm total play)**.

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Contact welding due to inrush currents exceeding 100 A for 10 ms | 8 | Mechanical override of positive guidance mechanism | Current-limiting resistors (5 Ω, 25 W) in series with contacts, arc suppression circuits (RC snubbers: 100 nF, 100 Ω) |
| Guide rail wear from cyclic loading exceeding 10⁶ operations at 0.3 N·m | 8 | Accumulated clearance exceeding 0.1 mm causes loss of positive guidance | Hardened steel guide rails (Rockwell C 60-62), PTFE lubrication (coefficient of friction &lt;0.1), wear sensors monitoring clearance (0.01 mm resolution) |

## 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**: **Precision Stamping Press**, **Automated Assembly Line**, **Laser Marking System**  
**Downstream Applications**: Safety Relays, Motor Starters, Circuit Breakers  

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

### Q: What is the purpose of a forced-guided mechanism in safety relays?
**A**: A forced-guided mechanism ensures that in safety relays, normally open and normally closed contacts cannot be closed simultaneously, preventing dangerous failures by guaranteeing positive-guided operation for critical safety functions.

### Q: What materials are used in forced-guided mechanisms and why?
**A**: These mechanisms typically use thermoset plastics like PBT for the contact carrier for electrical insulation and durability, stainless steel for guiding pins/rails for corrosion resistance and precision, and copper alloys for conductive components to ensure reliable electrical performance.

### Q: How does the mechanical interlock block work in forced-guided mechanisms?
**A**: The mechanical interlock block physically prevents simultaneous closure of normally open and normally closed contacts through positive-guided design, ensuring that if one contact welds or fails, the opposing contact cannot close, maintaining safety integrity.

## 6. Manufacturing Compliance

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### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Forced-Guided Mechanism](https://cnfx.com/industry/electrical-equipment-manufacturing/product/forced-guided-mechanism)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: FORCED_GUIDED_MECHANISM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 1ed6ec9b
