Speedfax 2017

Molded Case Circuit Breakers
Reference Guide
Selection/Application
7
MOLDED CASE
CIRCUIT BREAKERS
Page 7-187 7-191 7-195 7-199
Breaker Frame Family LG MG NG PG
Continuous Amps 150–600A 200–800A 300–1200A 400–1600A
Poles 2, 3 2, 3 2, 3 3
Max. Volts AC 600V 600V 600V 600V
Breaker Type NLGB HLGB LLGB NMG HMG LMG NNG HNG LNG NPG HPG LPG
Ratings
Dimensions
in Inches
Trip Unit
Information
Specific
Application
Breakers
Accessories
and
Modifications
Interrupting Class N H L N H L N H L N H L
Interrupting
Rating RMS
Symmetrical
Amperes
AC 50/60Hz
240Vac 65 100 200 65 100 200 65 100 200 65 100 200
UL 480Vac 35 65 100 35 65 100 35 65 100 35 65 100
600Vac 18 18 18 25 35 65 25 35 65 25 35 65
220/240Vac 65/65 100/75 200/150 65/35 100/50 200/150 65/65 100/75 200/100 65/35 100/50 200/100
l CU /
380/415Vac 45/45 70/70 100/75 50/50 70/70 100/75 50/25 70/35 100/50 50/25 70/35 100/50
l CS
690Vac 12/6 15/8 15/8 20/10 30/15 35/17 20/10 30/15 35/17 20/10 30/15 35/15
Ratings (UL) c 600Vdc (3-Pole) — 65 — — 65 — — 65 — — 65 —
250Vdc (2-Pole) 30 30 30 22 25 42 22 25 42 22 25 42
DC
Interrupting
500Vdc (3-Pole) 25 35 35 35 50 65 35 50 65 35 50 65
2-Pole 11H x 5.5W x 4.2D 16H x 7.5W x 4.7D 16H x 9W x 6.2D —
3-Pole 11H x 5.5W x 4.2D 16H x 7.5W x 4.7D 16H x 9W x 6.2D
Thermal-Magnetic u u u u
Electronic u u u u
Electronic with LCD u u u u
Interchangeable Trip Unit u u u u
Reverse Feed (w/Non-Interchangeable Trip) u u u u
Communications Capability a u u u u
Molded Case Switch u u u u
Motor Circuit Protector u u u
100% Rated u u u u
Auxiliary Switch u u u u
Alarm Switch u u u u
Shunt Trip u u u u
Undervoltage Release u u u u
Mechanical Interlocks u u u u
Electric Motor or Stored Energy Operator u u u u
Rear Connecting Studs u u u u
Plug-In Mounting Assy. w/Trip Interlock
u
Draw-Out Assembly u u
Handle Mechanism Options u u u u
Terminal Shields u u u u
Distribution Lugs
Ground Sensor (Neutral Transformer) u u u u
a Communications available via COMPRO or COMMOD modules using Profibus or Modbus protocol.
b 500Vdc nominal, 600Vdc max. for ungrounded DC UPS systems.
c DC Interrupting Ratings are not applicable to electronic circuit breakers.
LG frame maximum 500A.
Special version, see page 7-204.
Special 600Vac 25kA version available, see page 7-188.
7-18
Siemens Industry, Inc. SPEEDFAX Product Catalog