M-Frame Circuit Breakers

Class 612 / Refer to Catalog 0612CT0101

PowerPacT M-Frame Molded Case Circuit Breakers (800 A)

PowerPacT M-Frame Circuit Breaker with Basic Electronic Trip Unit

PowerPacT M-frame circuit breakers use an electronic trip system with the simplicity of a thermal magnetic breaker.

  • Basic electronic trip protection from 300 to 800 A up to 600 Vac

  • 2- and 3-pole unit mount and I-line construction

  • UL listed interrupting ratings from 35 to 65 kA at 480 Vac

  • Common mounting holes, handle locations and trim dimensions with shared auxiliaries and accessories with P-frame devices

  • Available in standard (80%) rating only

  • UL, CSA, NOM, CCC and IEC certified and CE marked for global acceptance

M-Frame 800 A, Basic Electronic Trip System Type ET 1.0 [1] Factory-Sealed Trip Unit

Electronic Trip Unit

Ampere Rating

Adjustable
Instantaneous
Trip Range

Interrupting Rating

Type

Function

Low

High

G

J

2P, 600 Vac 50/60 Hz

Basic

Fixed
Long-time,
Adjustable Instantaneous Trip

400 A

800 4000

MGL26400

MJL26400

600 A

1200 6000

MGL26800 [2]

MJL26800 [2]

3P, 600 Vac 50/60 Hz

Basic

Fixed
Long-time,
Adjustable Instantaneous Trip

400 A

800 4000

MGL36400

MJL36400

600 A

1200 6000

MGL36800 [2]

MJL36800 [2]

M-Frame 800 A, Adjustable Amperage Electronic Trip Unit

Electronic Trip Unit

Adjustable
Long-Time
Settings

Adjustable
Instantaneous

Interrupting Rating

Type

Function

Low

High

G

J

2P, 600 Vac 50/60 Hz

Basic

Adjustable
Long-Time

Adjustable Instantaneous Trip

300–800

2x

10x

MGL26800E10 MJL26800E10

3P, 600 Vac 50/60 Hz

Basic

Adjustable
Long-Time

Adjustable Instantaneous Trip

300–800

2x

10x

MGL36800E10 MJL36800E10

M-Frame Termination Options

Termination Letter

Termination Option

A

I-Line (See Section 9—Panelboards)

F

No lugs

L

Lugs both ends

M

Lugs ON end, terminal nut kit OFF end

P

Lugs OFF end, terminal nut kit ON end

M G L 3 6 4 0 0   

For factory-installed termination, place termination letter in the third block of the circuit breaker catalog number.

PowerPacT M-Frame Interrupting Ratings

Voltage

Interrupting Rating

G

J

240 Vac

65 kA

100 kA

480 Vac

35 kA

65 kA

600 Vac

18 kA

25 kA

Accessories see PowerPacT™ Circuit Breaker Accessories

Dimensions see Molded Case Circuit Breaker Dimensions

Optional Lugs see Mechanical Lugs

Enclosures see Enclosures

Footnotes

  1. The ET 1.0 trip unit cannot be field replaced or have the long-time trip point setting adjusted. It is considered an electronic equivalent of a thermal-magnetic circuit breaker.
  2. This item is entering obsolescence. The purchase opportunity will extend until December 2021.

Was this helpful?