Brochure
PowerPact H-, J-, and L-Frame Circuit Breakers
General Information
19
02/2016
© 2011–2016 Schneider Electric
All Rights Reserved
UL 489 SC Listed 500 Vdc Circuit Breakers
The UL Listed/CSA Certified thermal-magnetic H-, J-, and L-frame molded case circuit breakers are
specifically designed for use on ungrounded dc systems having a maximum short-circuit voltage of
500 Vdc or a maximum floating (unloaded) voltage of 600 Vdc. The circuit breakers are suitable for use
only with UPS (uninterruptable power supplies) and ungrounded systems. This two-level voltage rating
allows these circuit breakers to be applied to battery sources having a short-circuit availability of
20,000 or 50,000 amperes at 500 Vdc.
These circuit breakers are UL Listed/CSA Certified for the interrupting ratings shown only if applied with
three poles connected in series (series connection is external to circuit breaker). See diagram below.
NOTE: Due to external series connection, I-Line
circuit breakers are not available for this application.
Figure 2: DC Circuit Breaker Caution Labels
CAUTION/PRECAUCION/
ATTENTION
Connect only as shown/Conectar solo asi/
Francher seulement comme suit:
300 V 300 V
Load/Carga/
Charge
600 V MAX.
MAX. MAX.
Load/Carga/
Charge
or
o
ou
CAUTION/PRECAUCIÓN/
ATTENTION
Connect only as shown/ Conectar sólo
así/ Brancher seulment comme suit:
600 V MAX
+
-
or
o
ou
Load/Carga/
Charge
Load/Carga/
Charge
300 V
MAX
+
-
300 V
MAX
+
-
CAUTION/PRECAUCIÓN/
ATTENTION
Connect only as shown/ Conectar sólo
así/ Brancher seulment comme suit:
600 V MAX
+
-
Load/Carga/
Charge
Source = 600 Vdc max. (floating)
500 Vdc max. (loaded)
H- and J-Frame Circuit Breakers
L-Frame Three-Pole Circuit Breakers
L-Frame Four-Pole Circuit Breakers