Circuit Protection

Other Low Voltage Circuit Breakers

Molded Case Circuit Breaker Enclosures

• NEMA 1 General Purpose
  Surface or Flush Mounting 15 – 1200
  Ampere Range 600V AC, 500V DC
  
  NEMA 1 enclosed breakers are designed for indoor use in commercial buildings, apartment buildings and other areas where a general purpose enclosure is applicable. The breaker is front operable and is capable of being padlocked in the OFF position. Ratings through 1200 amperes are listed with Underwriters laboratories as suitable for service entrance application. Both surface and flush mounted enclosures are available.



• NEMA 3R Rainproof Surface Mounting
  Interchangeable Hubs (through 400 Amperes) 15 – 1200 Ampere Range
  600V AC, 500V DC
  
  This general purpose outdoor service center employs a circuit breaker inside a weatherproof sheet steel enclosure to serve as a main disconnect and protective device for feeder circuits. The operating handle can be padlocked in the OFF position, and is interlocked to prevent the door from opening when the breaker is ON. Ratings through 1200 amperes are listed by Underwriters Laboratories as suitable for service entrance application.



• NEMA 4/4X, 5 Water and Dustproof
  Stainless Steel — Type 304 Surface
  Mounting 15 – 1200 Ampere Range
  600V AC, 500V DC
  
  This enclosure meets NEMA 4/4X and 5 requirements for water and dustproof applications and has no knockouts or other openings. It is particularly well suited for use in dairies, borax mines, breweries, paper mills and other process industries. The operating handle can be padlocked in the OFF position, and is interlocked to prevent the door from opening when the breaker is ON. Ratings through 1200 amperes are Underwriters Laboratories listed as suitable for service entrance application.



• NEMA 12 Dustproof Surface Mounting
  No Knockouts or Other Openings
  15 – 1200 Ampere Range
  600V AC, 500V DC
  
  The Type 12 enclosure is designed in line with specifications for special industry application where unusually severe conditions involving oil, coolant, dust and other foreign materials exist in the operating atmosphere. The handle padlocks in the OFF position and the cover is interlocked with the handle mechanism to prevent opening the cover with the circuit breaker in the ON position. Ratings through 1200 amperes are listed by Underwriters Laboratories as suitable for service entrance application. A NEMA 12 semi-dust- tight design which includes knock-outs is available. These units are rated 15 – 400 amperes, 600V AC, 500V DC.



• NEMA 7, 9 Hazardous Location
  Cast Aluminum, Explosion-proof
  Surface Mounting 15 – 1200 Ampere Range
  600V AC, 250V DC
  
  Hazardous location, Type 7: Class I, Groups B, C, D; Type 9: Class II, Groups E, F, G. This special service cast aluminum enclosure is supplied with a wide, machined flanged cover to prevent igniting outside atmospheres by arcing from inside the enclosure. Front operable, the handle padlocks in the OFF position. Enclosures rated 600 amperes and above have lift-off hinges for ease of assembly.
  
  Note: XFDN050 not group B.