Do you need overload or short circuit protection for your industrial control panels or equipment?

Molded Case Circuit Breakers (MCCBs)

AutomationDirect now offers a line of Eaton Cutler-Hammer's Molded Case Circuit Breakers (MCCBs) that provides UL489 listed performance for branch circuit overcurrent protection and disconnecting means.

They are UL listed for installation in UL 508 control panels. Their small size, in relation to standard circuit breakers or other comparable fusible devices, saves panel space.

These MCCBs use a patented contact conductor design featuring high-speed "blow-open" action that results in superior performance when high level fault currents produce extraordinary electromechanical forces.

They also feature advanced arc extinguishing technology, and a toggle handle that provides three positions (on/ off/ tripped) along with visual indicators. A line of accessories (e.g. handles, auxiliary contacts, shunt trips and undervoltage releases) are also available for the MCCBs.

Four frame sizes and all standard accessories are available.

Current models available include:

G3P-Series (15 to 100 Amp)

F3P-Series (100 to 225 Amp)

K3P-Series (250 to 400 Amp)

L3P-Series (400 to 600 Amp)

Designed to provide branch and feeder circuit protection in industrial control panels, these Molded Case Circuit Breakers from Eaton Cutler-Hammer supply protection against overload in conductors and short circuit in connected equipment such as motors.

• 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

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

MCCB part numbers use the following numbering convention: G3P-020-AUX

The first letter represents the Molded Case Circuit Breaker Series (by frame size)

G: 15 to 100 Amp

F: 100 to 225 Amp

K: 250 to 400 Amp

L: 400 to 600 Amp

The next 2 characters indicate the number of poles (e.g. 3P = 3 pole)

The second group of numbers (-020) represents the Amp rating

The last set of characters (-AUX) is an Accessory Description Code:

AUX: auxiliary contact STAC: shunt trip AC 120/ 240VAC STDC: shunt trip DC 12/ 24VDC/AC UVAC: undervoltage release 120/ 240VAC UVDC: undervoltage release 12/ 24VDC/AC

Do you need a handle, auxiliary contact, shunt trip or other accessory to go with your Cutler-Hammer molded case circuit breaker?

A variety of accessories are available for our molded case circuit breakers from Cutler Hammer.

• Rotary Handle
  
  

• Flexible Handle
  
  

• Auxiliary Contact
  
  

• Shunt Trip
  
  

• Undervoltage Release
  
  

• Six-wire Connector
  
  

• Replacement Lug Kit
  
  

• DIN-rail Mounting Clip (for G-Frame MCCBs)