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Mounting Base for Multi 9 C60 Circuit Breakers Mounting Base for Multi 9 C60
Circuit Breakers
Simplified wiring and reduced installation cost
in OEM applications
Features
Provides group mounting of UL 489
C60 miniature circuit breakers,
from 0.5 A to 35 A
Offers models from 12 to 60 poles
Features three conductors (for
3-phase); two conductors for
single-phase with neutral or DC; one
conductor for single-phase (line only)
No field assembly required,
except optional main lugs and
main terminal cover
Allows use of electrical auxiliaries
on the circuit breakers
Designed per UL 67 specifications,
the mounting base is UL recognized
for use with UL 489 C60 products
(but not UL 1077 supplementary
protectors)
Also meets CSA C22.2 #29 and IEC
60439-1 standards and carries
the CE mark
US31210018 shown with optional
USMBLK lugs installed
The mounting base for UL 489 Multi 9 C60 miniature circuit breakers
was designed for OEM applications requiring a large number of
Multi 9 miniature circuit breakers in a single piece of equipment.
Providing a means for mounting and a bus for line power, this
mounting base offers a convenient solution to powering an entire
group of breakers.
In addition to simplifying wiring for multiple UL 489 devices,
the mounting base minimizes the cost of installation by eliminating
discrete wiring of line conductors.
Variety of Sizes to Meet a Broad Range of Applications
The mounting bases for UL 489 Multi 9 C60 are offered in a variety
of configurations, which meet most OEM applications. Available
in lengths from 12 to 60 poles, this mounting base handles
the large numbers of Multi 9 miniature circuit breakers found in
much equipment.
They are available in these configurations:
1 conductor
2 conductors
3 conductors
Power up to 60 poles of C60N
(US36020018 shown) Ordering Information
The catalog numbers define the products. See example below:
Bussing to H- or J-Frame
PowerPact
®
MCCB
The standard terminals on the US mounting
base are 1-inch wide and have
1/4-20 x 1-inch studs, which can be used
with compression (ring) terminals or with
a bus bar. Nuts with washers are provided
for each terminal stud. The terminals of
the US mounting base are aligned with
the load terminals of the PowerPact H- and
J-Frame molded case circuit breakers.
This allows them to be connected using
straight, flat jumper bars.
U
S
3
2
4
2
0
0
1
8
US
Ratings
US includes
UL, CSA,
and IEC
Ratings
3
Conductors
1
2
3
24
Poles
12
24
36
48
60
200
Maximum
Current
100
150
200
18
Spacing
(mm)
18
27 (Future)
Mounting Base for UL 489 Multi 9 C60 Optional Terminal Cover USMBTC
The optional terminal cover USMBTC is
designed to provide shielding of the
terminals, bus bars, lugs and cabling.
Snapping onto the terminal end of the
mounting base, the terminal cover has an
opening for a bus bar jumper and knock-outs
to accommodate various sizes of cable.
Optional Wire
Lugs USMBLK
The optional lug kit
USMBLK can be
field installed for use
with cable. Each kit
consists of one lug
and one nut/washer
assembly.
One kit must be
ordered for each
conductor terminal.
The lug mounts on
the 1/4-inch terminal
stud of the mounting
base and is secured
with a nut with
washer. This lug
accepts #6 AWG
to 300 kcmil copper
or aluminum cable.
The barriers
between the phases
provide required
separation
between the
phases; an optional
terminal cover is
also available.
Mounting base with standard main terminal studs
Optional USMBLK lug kit installed
Mounting dimensions for U.S. mounting base
Optional USMBTC terminal cover installed © 2005 Schneider Electric All Rights Reserved
tk
02-05
Document Number 0860HO0501
Schneider Electric - North American Operating Division
1415 S. Roselle Road
Palatine, IL 60067
Tel: 847-397-2600
Fax: 847-925-7500
Ratings
UL recognized for use with UL 489 Multi 9 C60 miniature
circuit breakers per UL 67, CSA C22.2 #29 and IEC 60439-1
Also CE marked
Voltages
240 Vac and 125 Vdc
Ampacity
200 A maximum (see table on page two)
Interrupting Rating
10 kA @ 0.05 seconds
Conductors/Bus
1, 2 and 3 conductors; suitable for use with 1, 2 and 3 pole
circuit breakers
Pole Capacity
12, 24, 36, 48, 60
Branch Breakers
UL 489 C60 with 18 mm spacing (future option for C120
with 27 mm spacing and combination of C60/C120)
Input Terminal
One-inch wide 1/4-20 x 1-inch studs with nuts/washers for
compression ring lugs, bus bar or optional lugs
Optional Lug Kit
Catalog number USMBLK. Includes one bolt-on lug and one
nut/washer for #6 AWG to 300 kcmil cable (same as QOL225
cable lug)
Optional Terminal Cover Catalog number USMBTC. Provides IP20 ingress protection
per IEC 60529; suitable for jumper bars or cables
Specifications
Mounting Base for UL 489 Multi 9 C60