Contact Us
Products
Back
ANSI Metal-Clad Switchgear
PowlVac® Switchgear
PowlVac® Circuit Breakers
Power/Vac® Switchgear
Power/Vac® Circuit Breakers
ANSI Metal-Enclosed Switchgear
Low Voltage FlexGear™
Medium Voltage Load Interrupting Switchgear
IEC Switchgear
LV IEC Switchgear, Type 439
LV Type 439 - PowlCAB
MV IEC Switchgear, Type 298
IEC Circuit Breakers, PowlVac100®️
DC Switchgear and Rectifiers
DC Switchgear
DC Circuit Breakers
Semiconductor Power Rectifiers
Integrated Packaged Solutions
Bus Systems
NEMA Motor Control
Underground Distribution Switches
High Resistance Grounding
PowlSmart™️ Intelligent Devices
Nextron® Heat Tracing
EV Charging Solutions
Services
Back
Powell EPiC
Project Engineering Services
Project Procurement Services
Project Integration Services
Project Construction Services
Product Life Extension, Maintenance and Support
Replacement Breakers
Equipment Modifications and Upgrades
Retrofit and Retrofill Solutions
Bus Duct Repair, Replace, Refurbish (RRR) Services
Start-Up and Commissioning Services
Breaker Life Extension Upgrade (BLEU)
Powell Service Training Academy
Capital and Start-Up Spares
Parts-On-Demand (PowlPOD)
Digital Solutions & Automation
Asset Management
PMS, ENMCS, SCADA/SCADA-H
Software Engineering / Custom Applications
HMI, Graphics, Custom Software
Condition Monitoring Devices and Systems
About
Resources
Careers
Suppliers
Investors
Contact Us
Back To Resources
Download
PTB 46 Significance of K factor in Circuit Breaker Ratings
Tech Briefs