VIOX Blog

Electrical Engineering Guides & Insights

DC Circuit Breaker Sizing Calculation: NEC 690 vs IEC 60947-2 Rules

Circuit Protection

DC Circuit Breaker Sizing Calculation: NEC 690 vs IEC 60947-2 Rules

Joe2026-01-26

Electrical Engineering & Standards

The Differences Between Low, Medium & High Voltages

Joe2026-01-26

The Differences Between Low, Medium & High Voltages

Electrical Engineering & Standards

Silver vs. Copper Dependence: A Sensitivity Ranking for Contactors, Breakers, Relays, and Fuses

Joe2026-01-25

Silver vs. Copper Dependence: A Sensitivity Ranking for Contactors, Breakers, Relays, and Fuses

Surge Protection & Power Quality

UL 1449 vs IEC 61643 for SPDs: Standards, Certification Evidence and Market Acceptance

Joe2026-01-25

UL 1449 vs IEC 61643 for SPDs: Standards, Certification Evidence and Market Acceptance

AC-7a vs. AC-7b: Why Your Modular Contactors Are Failing on Inductive Loads

Industrial Control & Automation

AC-7a vs. AC-7b: Why Your Modular Contactors Are Failing on Inductive Loads

Joe2026-01-25

IEC 61095 vs IEC 60947-4-1: Scope, Ratings & Contactor Selection

Industrial Control & Automation

IEC 61095 vs IEC 60947-4-1: Scope, Ratings & Contactor Selection

Joe2026-01-25

Understanding 80% Vs. 100% Rated Circuit Breakers

Circuit Protection

Understanding 80% Vs. 100% Rated Circuit Breakers

Joe2026-01-25

Can You Use a 3-Phase MCCB for Single Phase? Wiring Guide & Safety Risks

Circuit Protection

Can You Use a 3-Phase MCCB for Single Phase? Wiring Guide & Safety Risks

Joe2026-01-25

Busbar Selection Guide: Bare Copper vs. Tin-Plated vs. Silver-Plated Comparison

Busbars & Insulators

Busbar Selection Guide: Bare Copper vs. Tin-Plated vs. Silver-Plated Comparison

Joe2026-01-24

From C1-C5 and CX: The Corrosion Resistance Grade and Design Lifespan of Metal Parts

Electrical Engineering & Standards

From C1-C5 and CX: The Corrosion Resistance Grade and Design Lifespan of Metal Parts

Joe2026-01-24

DIN Rail Mount (17.5mm) vs. Panel Mount (48mm) Timers: Which Form Factor Fits Your Panel?

Industrial Control & Automation

DIN Rail Mount (17.5mm) vs. Panel Mount (48mm) Timers: Which Form Factor Fits Your Panel?

Joe2026-01-24

6kA vs 10kA MCB: Breaking Capacity Selection Guide

Circuit Protection

6kA vs 10kA MCB: Breaking Capacity Selection Guide

Joe2026-01-23

IEC 62606 AFDD Standard: Scope, Types & Evidence

Circuit Protection

IEC 62606 AFDD Standard: Scope, Types & Evidence

Joe2026-01-22

Understanding MCCB Trip Unit Settings: Ir, Im, Isd, and Ii Explained

Circuit Protection

Understanding MCCB Trip Unit Settings: Ir, Im, Isd, and Ii Explained

Joe2026-01-21

What is the Difference Between Dry Type Transformer and Oil Filled Transformer

Power Distribution & Switchgear

What is the Difference Between Dry Type Transformer and Oil Filled Transformer

Joe2026-01-20

MCB MCCB Temperature Rise Limits: How Hot is Too Hot per IEC 60947 & UL 489?

Circuit Protection

MCB MCCB Temperature Rise Limits: How Hot is Too Hot per IEC 60947 & UL 489?

Joe2026-01-20

30mA vs 100mA vs 300mA RCCB: How to Choose

Circuit Protection

30mA vs 100mA vs 300mA RCCB: How to Choose

Joe2026-01-20

RCD Breaker Vs GFCI Breaker?

Circuit Protection

RCD Breaker Vs GFCI Breaker?

Joe2026-01-19

Open Transition vs. Closed Transition ATS: Which Do You Need?

Industrial Control & Automation

Open Transition vs. Closed Transition ATS: Which Do You Need?

Joe2026-01-19

Top Time Relay Manufacturers: 10 Industrial Brands Compared (2026)

Industrial Control & Automation

Top Time Relay Manufacturers: 10 Industrial Brands Compared (2026)

Joe2026-01-19

Breather Plug vs. Breathable Cable Gland: Which is Best for Condensation?

Cable Glands

Breather Plug vs. Breathable Cable Gland: Which is Best for Condensation?

Joe2026-01-19

Single-Pole vs Double-Pole Circuit Breaker: 1P, 1P+N, and 2P Explained

Circuit Protection

Single-Pole vs Double-Pole Circuit Breaker: 1P, 1P+N, and 2P Explained

Joe2026-01-18

Fuse Switch Disconnector Guide: Fuse Switch, Switch Fuse, and Fused Disconnect Explained

Power Distribution & Switchgear

Fuse Switch Disconnector Guide: Fuse Switch, Switch Fuse, and Fused Disconnect Explained

Joe2026-01-18

Sizing Fuses for Bifacial Solar Panels: Handling the Extra Current Gain

DC Protection & Isolation

Sizing Fuses for Bifacial Solar Panels: Handling the Extra Current Gain

Joe2026-01-17

Why Time Relay Contacts Fail on Inductive Loads: Understanding AC-1 vs. AC-15 Ratings

Industrial Control & Automation

Why Time Relay Contacts Fail on Inductive Loads: Understanding AC-1 vs. AC-15 Ratings

Joe2026-01-17

RCBO Breaking Capacity: 6kA vs 10kA vs 16kA Selection Guide

Circuit Protection

RCBO Breaking Capacity: 6kA vs 10kA vs 16kA Selection Guide

Joe2026-01-17

Preventing Fuse Nuisance Tripping: Solar Combiner Box Temperature Derating Guide

Solar, DC & Energy Storage

Preventing Fuse Nuisance Tripping: Solar Combiner Box Temperature Derating Guide

Joe2026-01-17

Pre-wired Combiner Box vs. DIY Assembly: The Hidden Labor Costs Installers Ignore

Solar, DC & Energy Storage

Pre-wired Combiner Box vs. DIY Assembly: The Hidden Labor Costs Installers Ignore

Joe2026-01-17