SE Digest 178

Selection Information

Insulated Case Circuit Breakers

Class 600, 800

www.se.com/us

MasterPact NT, NW Molded Case Circuit Breakers

MasterPact 1200 A

MasterPact 6000 A

NT-LF [57]

NW-LF [57]

Circuit Breaker Type Number of Poles Current Range Interrupting Ratings UL/CSA/NOM Rating

NT-N NT-H NT-L1

NT-L

NW-N NW-H NW-L

NW-H NW-L NW-H NW-L

3 , 4 100– 1200

3, 4

3, 4 100– 2000

3, 4

3 , 4 640– 3000

3 , 4

3

3

3

3

3

3

3

100– 1200

100– 1200

100– 1200

100– 1200

100– 2000

100– 2000

100– 2000

640– 3000

1200– 6000

1200– 6000

240Vac

50 50 50 35 35

65 50 50 50 50

100

200 100 100

200 100 100

65 65 65

100 100 100

200 150 150 100 100

200 150 150 100 100

100 100 100

200 150 150 100 100

100 100 100

200 150 150 100 100

480Y/277 Vac

65 65

480Vac

(kARMS) (50/60Hz)

600Y/347 Vac

— — — 50 — — — 50

85 85

85 85

85 85

600Vac 250Vdc 500Vdc 240Vac 415Vac

————————————— ————————————— ————————————— ————————————— ————————————— ————————————— —————————————

DCRatings

IEC [58] (kA RMS) Icu/ Ics Special Ratings CCC

Fed. Specs W-C-375B/GEN

HACR (2P, 3P)

Connections/Terminations UnitMount

X

X

X

X

X

X

X

X

X

X

X

X

X

I-Line™

—————————————

Rear Connection

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

Drawout

Optional Lugs

—————————————

Accessories and Modifications Shunt Trip

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

X X X X X

Undervoltage Trip Auxiliary Switches Alarm Switch Motor Operator Handle Operators Mechanical Interlocks Padlock Attachment

—————————————

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

Cylinder Lock

—————————————

Optional GF Protection

X

X

X

X

X

X

X

X

X

X

X

X

X

Trip System Type

Thermal-magnetic

————————————— —————————————

Instantaneous-only (MCP)

Molded Case Switch (Automatic)

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

X X

Electronic

Enclosures

General Purpose (NEMA 1)

————————————— ————————————— ————————————— ————————————— —————————————

Raintight (NEMA 3R) Dust-tight (NEMA 12)

Watertight (NEMA 4, 4X, 5) Explosion Proof (NEMA 7, 9)

Height Width Depth

12.67 (322) 11.25 (286) 13.00 (331)

17.28 (439) 17.74 (450) 18.38 (467)

17.28 (439) 17.74 (450) 18.38 (467)

17.28 (439) 30.94 (786) 18.38 (467)

Dimensions (3P Drawout) in. (mm)

Pages NOTE: All circuit breakers on this chart are UL Listed and CSA Certified unless otherwise noted. 7 MINIATURE AND MOLDED CASE page 7-79 and Catalog 0613CT0001

page 7-79 and Catalog 0613CT0001

CIRCUIT BREAKERS

[57] Tested to show arc flash hazard risk category as reference by NFPA70E. [58] See Catalog 0613CT0001 for additional ratings and other information.

7-10

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