---
title: "Power Relay"
industry: "Electrical Equipment Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:POWER_RELAY"
  data_integrity_hash: "43d6b6596bd60d700124e15fd58005b6"
  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:POWER_RELAY"
  data_source_uri: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/power-relay.md"
  official_resource_url: "https://cnfx.com/industry/electrical-equipment-manufacturing/product/power-relay"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0-80°C ambient temperature, 5-30 VDC coil voltage, 0-16 A switching current at 250 VAC"
    unit: "A"
engineering_limits:
  max_safe_operating_point:
    value: 85
    unit: "°C"
    consequence: "Thermal degradation of Class B insulation (130°C maximum) causing coil short, joule heating exceeding contact material melting point (AgCdO melts at 960°C), Paschen's law breakdown at 3.5 kV/mm air gap"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Inductive load switching without snubber circuit"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "RC snubber network with 100 Ω resistor and 0.1 μF capacitor across contacts"
  - node_2:
      trigger: "Continuous operation at 90% of rated current"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "PTC thermistor protection circuit with 85°C trip point in series with coil"
bom_nodes:
  electromagnetic-coil:
    type: "part"
    urn: "URN:CNFX:ME:ELECTROMAGNETIC_COIL"
    interface_type: "physical-logic-coupled"
  armature:
    type: "component"
    urn: "URN:CNFX:ME:ARMATURE"
    interface_type: "physical-logic-coupled"
  contacts:
    type: "component"
    urn: "URN:CNFX:ME:CONTACTS"
    interface_type: "physical-logic-coupled"
  spring:
    type: "component"
    urn: "URN:CNFX:ME:SPRING"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "IEC 61810-1:2015 (ELECTROMECHANICAL ELEMENTARY RELAYS)"
    scope: "Verified Engineering Specification"
  - standard: "ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/power-relay.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "57b8ef9adefd883cc77099b88d936d5d6478fa611a2959b04e0515afc92ebabf"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Power Relay

## 1. Technical Definition
An electromechanical switch used to control high-power electrical circuits within a temperature control module.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0-80°C ambient temperature, 5-30 VDC coil voltage, 0-16 A switching current at 250 VAC**. Failure boundary: **Coil insulation breakdown at 85°C, contact welding at 35 A continuous current, dielectric breakdown at 500 VAC**, Mechanism: **Thermal degradation of Class B insulation (130°C maximum) causing coil short, joule heating exceeding contact material melting point (AgCdO melts at 960°C), Paschen's law breakdown at 3.5 kV/mm air gap**.

### 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 |
| :--- | :--- | :--- | :--- |
| Inductive load switching without snubber circuit | 8 | Contact arcing causing material transfer and increased contact resistance | RC snubber network with 100 Ω resistor and 0.1 μF capacitor across contacts |
| Continuous operation at 90% of rated current | 8 | Thermal accumulation exceeding 85°C causing insulation breakdown | PTC thermistor protection circuit with 85°C trip point in series with coil |

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

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Electromagnetic Coil](https://cnfx.com/llms/industry/electrical-equipment-manufacturing/product/electromagnetic-coil.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Temperature Control Module**, **Circuit Tester**, **Coil Winding Machine**  
**Downstream Applications**: HVAC Systems, Industrial Ovens, Electric Vehicle Chargers  

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

### Q: What materials are used in this power relay's construction?
**A**: This power relay uses copper for the coil and contacts, plastic for the housing, and steel for the core and spring components.

### Q: What are the main components in this relay's bill of materials?
**A**: The BOM includes armature, contacts, electromagnetic coil, and spring - all designed for reliable high-power switching in temperature control applications.

### Q: How does this power relay function in temperature control modules?
**A**: As an electromechanical switch, it controls high-power circuits within temperature control systems, using electromagnetic activation to manage heating or cooling operations.

## 6. Manufacturing Compliance
- IEC 61810-1:2015 (ELECTROMECHANICAL ELEMENTARY RELAYS)
- ISO 9001:2015 (QUALITY MANAGEMENT SYSTEMS)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Power Relay](https://cnfx.com/industry/electrical-equipment-manufacturing/product/power-relay)**

### 🌐 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**: POWER_RELAY | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 79722c67
