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NOARK® Electric Molded Case Circuit Breakers Ex9M4 Series:
- UL 489 Listed, File Number E35539
- CSA Standards 22.2 No.5 File Number E355392
- 400A to 600A Ratings
- 600VAC, 600VDC Maximum
- 2 Pole, 3 Pole
  Interrupting Ratings:
  Ex9M4S Ex9M4N Ex9M4H
  65kAIC at 240VAC 100kAIC at 240VAC 150kAIC at 240VAC
  42kAIC at 480Vac 65kAIC at 480VAC 100kAIC at 480VAC
  22kAIC at 600VAC 30kAIC at 600VAC 50kAIC at 600VAC
Ex9 Series M4 Bus Bar and Lug Line/Load Side Connection Molded Case Circuit Breakers
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Catalog Number

Rated Current

Number of Poles

IC Class

Interrupting Capacity

Terminal Specification

M4S400T2 N/A 400 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4S500T2 N/A 500 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4S600T2 N/A 600 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4S400T3 N/A 400 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4S500T3 N/A 500 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4S600T3 N/A 600 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A Bus Bar Type
M4N400T2 N/A 400 A N/A 2 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4N500T2 N/A 500 A N/A 2 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4N600T2 N/A 600 A N/A 2 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4N400T3 N/A 400 A N/A 3 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4N500T3 N/A 500 A N/A 3 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4N600T3 N/A 600 A N/A 3 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A Bus Bar Type
M4H400T2 N/A 400 A N/A 2 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4H500T2 N/A 500 A N/A 2 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4H600T2 N/A 600 A N/A 2 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4H400T3 N/A 400 A N/A 3 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4H500T3 N/A 500 A N/A 3 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4H600T3 N/A 600 A N/A 3 N/A H N/A 100kA at 480Vac 150kA at 240Vac 50A at 600Vac 65kA at 600Vdc N/A Bus Bar Type
M4S400T2L N/A 400 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4S500T2L N/A 500 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4S600T2L N/A 600 A N/A 2 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4S400T3L N/A 400 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4S500T3L N/A 500 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4S600T3L N/A 600 A N/A 3 N/A S N/A 22A at 600Vac 35kA at 600Vdc 42kA at 480Vac 65kA at 240Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
M4N400T2L N/A 400 A N/A 2 N/A N N/A 100kA at 240Vac 30A at 600Vac 50kA at 600Vdc 65kA at 480Vac N/A (2) #2/0 AWG to 500 kcmil, CU or AL wires
90°C
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