Molded Case Circuit Breakers (MCCBs)

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Features include:

• UL489 listed performance for branch circuit overcurrent protection and disconnecting means
  
  
• Patented contact conductor designs featuring high-speed “blow-open” action, providing superior performance when high level fault currents produce extraordinary electromechanical forces
  
  
• Advanced arc extinguishing technology (arc fault protection)
  
  
• Toggle handle provides three positions (on/ off/ tripped) along with visual indicators
  
  
• Manufactured in ISO 9000 certified facilities
  
  
• HACR (heating, air conditioning and refrigeration) rated
  
  
• G-Frame (15 to 100 Amp) and F-Frame (100 to 225 Amp) size units are suitable for reverse feed
  
  
• K-Frame and L-Frame breakers include 3-pole adjustable magnetic trip
  
  
• G-Frame (70 to 90A) and F-Frame (60 to 90A) breakers plus additional shaft lengths and NEMA 4/4X ratings for handles

Molded Case Circuit Breakers Overview

MCCB Dimensions

These parts are available for sale in North America only.

Listings

• UL 489 MCCB, File: E7819
• Field-installed accessories: UL file E64983
• CSA 22.2 No.5, File: 43556
• IEC 157-1
• NEMA Standards Publication No. AB1-1993

Molded Case Circuit Breakers Part Numbering System

NOTE: For further details or technical specifications, select the desired product category and select the "Products" tab and click on the desired "Item Code" link, or select the "Technical Info" tab.

For further guidance in choosing the correct molded case circuit breaker, see the MCCB Cross Reference document.

These parts are available for sale in North America only.