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Series L9 UL-489 Miniature Circuit Breakers
M
Circuit Protection
L9
M18
SSCDN8500E
Series L9
UL-489 Miniature
Circuit Breakers
Industrial Circuit
Breakers for Branch
Circuit Protection
up to 40 Amps
Sprecher+Schuh includes a new line of
circuit breakers approved for branch
circuit applications in the United
States and Canada and certified as a
Miniature Circuit Breaker for IEC
applications. The Sprecher + Schuh
Breakers are UL489 listed and CSA
22.2 No. 5.1 to provide branch Circuit
Breakers to IEC 60 947-2.
Broad product range &
flexibility
The Sprecher + Schuh L9 Miniature
Circuit Breakers provide a variety
of product configurations by offer-
ing current ranges of 0.5A to 40A
with voltage ranges of 240V AC and
480Y/277V AC. The Series L9 DIN
Rail-mounted circuit breakers are
similar in width and current range to
circuit breakers with the added benefit
of providing listed branch circuit pro-
tection circuit breaker for US/Canada
applications.
Also available for control circuit ap-
plications are add-on auxiliary and
signal contacts plus shunt trip modules
to provide modern control circuit
applications. A lock-off attachment is
available for applications requiring that
feature.
Safety features provide
enhanced protection
The series L9 Miniature Circuit Break-
ers feature finger-safe IPX/2 from the
front of the circuit breaker to guard
against accidental contact with live
parts.
To aid troubleshooting, a color-coded
indicator provides positive visual indica-
tion of the device status (green for OFF,
red for ON and isolation function).
The Series L9 also incorporate a trip
free mechanism - ensuring that the
device operation cannot be defeated
by holding the operator in the ON
position.
Easy installation
The Series L9 Miniature Circuit
Breakers mount on a standard 35mm
DIN-rail. Wire terminals accept mul-
tiple conductors. In addition, power
to the circuit breakers can be fed from
the line or load side.
Global approvals for
worldwide acceptance
The Sprecher + Schuh L9 Circuit
Breakers are UL489 listed, CSA 22.2
No. 5.1 approved and meets IEC
60 947-2. The Series L9 also have
an HACR rating (heating and air
conditioning) as well as a "Switching
Duty" (SWD) rating from 0.5 to 20A.
Switching Duty ratings are related to
fluorescent light applications only, not
High intensity discharge (HID) lights
or any other types of loads. Advanced
features and global approvals make
the Series L9 an ideal product for
use in industrial equipment installed
throughout the world.

17.5mm
35mm
52.5mm

( 11/16
)
(
1-
3/8
)
(
2-
1/8
)

One Pole
Two Pole
Three Pole M
Circuit
Protection
L9
M19
SSCDN8500E
Product Design &
Application
The Series L9 products are thermal-
magnetic (inverse time) circuit break-
ers offering the benefits of a modern
circuit breaker design in a compact
size. The L9 is used mainly in con-
trol circuit applications where branch
circuit approved circuit breakers are
required.
Because of its range of protection
(from 0.5 to 40A) many customers
may use this product for protec-
tion of load devices where fuses or
other supplementary protector devices
previously were used in the U.S. and
Canada.
Protection of PLC I/O, solenoids,
power supplies and control transform-
ers along with providing the listed
branch circuit protection is available in
one device.
Description
L9 Circuit Breakers for Branch Circuit
protection are available one (1)-, two
(2-), and three (3-) pole construction
and are rated 0.5 to 40A at 240VC AC
and 0.5 to 25A at 480Y/277V AC for
North American applications (UL 489
and CSA 22.2 No. 5.1). For IEC ap-
plications, the products are rated 415V
AC 0.5 to 40A.
Continuous Current Rating
Standard current ratings are: 0.5A, 1A,
1.5A, 2A, 3A, 4A, 5A, 6A, 7A, 8A,
10A, 15A, 16A, 20A, 25A, 30A, 32A,
35A and 40A.
The L9 circuit breakers are rated in
RMS amperes at 40°C (104°F) ambi-
ent temperature per the UL 489 (CSA
22.2 No. 5.1) standard. This tempera-
ture is generally used as the average
temperature within an industrial
enclosure. If a circuit breaker is applied
in a temperature that exceeds 40°C
(104°F) ambient, then the circuit
breaker should be derated. For IEC 60
947-2 standard, the products carry an
ambient rating of 30° C. Follow stan-
dard IEC application considerations
for temperature rating in different
ambient temperatures.
The characteristic trip curves are
shown on page M29. The trip bands
shown for each breaker represent
current tripping limits for a circuit
breaker and are within the limits es-
tablished by UL. For a specific current
at 40°C (104°F), a circuit breaker will
open ("clear the circuit") automatically
at some total time that will be within
the "Minimum" and "Maximum"
time shown on the curves.
Example: The L9 time-current graph
on page M29 shows that a one-pole,
15 A, L9 circuit breaker trips in not
less than 10 sec, and not more than
120 sec. on a 30 A current. Because
the UL standard defines this time
spread, users should not specify exact
tripping time. The lower current por-
tion of the curves (upper left) depict
the time to trip due to thermal action
and reflect overload protection of the
wire and connect load. The higher
current portion of the curves (lower
right) depicts the trip due to the mag-
netic action of the circuit breaker and
reflects protection due to short circuit
level currents.
L9 UL489 Miniature Circuit Breakers
Series L9
Compare these advanced features
Line and load side terminals
accept bus bar connections
for reduced costs and more
efficient installation of
multiple devices.
Guarded posidrive terminal
screws with finger-safe
protection to IEC 947-1
Devices install on standard
35mm DIN-rail (EN 50022)
Magnetic trip elements
provide Type C and D trip
characteristics (IEC and EN
60898), while bimetallic
elements protect against
slight overloads.
Amp rating and trip curve
characteristic clearly marked
on the device for easy
identification.
Box lug terminals accept
#18#6 AWG wire as
standard
Current limiting and
interrupting capacity up to
10kA at 480Y/277V AC.
Trip-free mechanism;
device operation cannot
be defeated by holding the
operator in the ON position
Color coded indicator
provides visual indication
of the device status and
isolation function
Available in one, two and
three pole; Discount Schedule B-8
M
Circuit Protection
L9
M20
SSCDN8500E UL/CSA
Max.
Volt.
Rated
Current

(A)
1 Pole
2 Pole
3 Pole
Catalog Number
Price Std.
Pkg. Catalog Number
Price Std.
Pkg. Catalog Number
Price Std.
Pkg.
480Y/277
0.5
L9-.5/1/C
97
2
L9-.5/2/C
185
1
L9-.5/3/C
251
1
1
L9-1/1/C
97
2
L9-1/2/C
185
1
L9-1/3/C
251
1
1.5
L9-1.5/1/C
97
2
L9-1.5/2/C
185
1
L9-1.5/3/C
251
1
2
L9-2/1/C
97
2
L9-2/2/C
185
1
L9-2/3/C
251
1
3
L9-3/1/C
97
2
L9-3/2/C
185
1
L9-3/3/C
251
1
4
L9-4/1/C
97
2
L9-4/2/C
185
1
L9-4/3/C
251
1
5
L9-5/1/C
97
2
L9-5/2/C
185
1
L9-5/3/C
251
1
6
L9-6/1/C
97
2
L9-6/2/C
185
1
L9-6/3/C
251
1
7
L9-7/1/C
97
2
L9-7/2/C
185
1
L9-7/3/C
251
1
8
L9-8/1/C
97
2
L9-8/2/C
185
1
L9-8/3/C
251
1
10
L9-10/1/C
97
2
L9-10/2/C
185
1
L9-10/3/C
251
1
13
L9-13/1/C
97
2
L9-13/2/C
185
1
L9-13/3/C
251
1
15
L9-15/1/C
97
2
L9-15/2/C
185
1
L9-15/3/C
251
1
16
L9-16/1/C
97
2
L9-16/2/C
185
1
L9-16/3/C
251
1
20
L9-20/1/C
97
2
L9-20/2/C
185
1
L9-20/3/C
251
1
25
L9-25/1/C
107
2
L9-25/2/C
198
1
L9-25/3/C
251
1
240
30
L9-30/1/C
110
2
L9-30/2/C
211
1
L9-30/3/C
279
1
32
L9-32/1/C
110
2
L9-32/2/C
211
1
L9-32/3/C
279
1
35
L9-35/1/C
110
2
L9-35/2/C
211
1
L9-35/3/C
279
1
40
L9-40/1/C
115
2
L9-40/2/C
227
1
L9-40/3/C
292
1
L9 UL489 Miniature Circuit Breakers
Trip Characteristic C
Trip Characteristic C (5~10 x I
N
) Inductive loads Rated 415V AC IEC max/min meets IEC 60947-2 for miniature circuit breakers. 1-Pole 48VDC 0.5...40A 2-Pole (series) 96VDC 0.5...40A
L9 Miniature Circuit Breaker Features:
UL-489 listed for Branch Circuit protection and CSA 22.2 No. 5.1 Approved
Thermal magnetic protection
Trip characterisitc based on 40°C ambient for UL/CSA
10kA interrupting rating
All ratings are HACR rated (SWD rated up to 20 A)
Finger safe design (front)
DIN rail mounting Discount Schedule B-8
M
Circuit
Protection
L9
M21
SSCDN8500E
L9 UL489 Miniature Circuit Breakers
Trip Characteristic D
Trip Characteristic D (10~20 x I
N
) Highly inductive loads UL/CSA
Max.
Volt.
Rated
Current

(A)
1 Pole
2 Pole
3 Pole
Catalog Number
Price Std.
Pkg. Catalog Number
Price Std.
Pkg. Catalog Number
Price Std.
Pkg.
480Y/277
0.5
L9-.5/1/D
97
2
L9-.5/2/D
186
1
L9-1.5/3/D
256
1
1
L9-1/1/D
97
2
L9-1/2/D
186
1
L9-1/3/D
256
1
1.5
L9-1.5/1/D
97
2
L9-1.5/2/D
186
1
L9-1.5/3/D
256
1
2
L9-2/1/D
97
2
L9-2/2/D
186
1
L9-2/3/D
256
1
3
L9-3/1/D
97
2
L9-3/2/D
186
1
L9-3/3/D
256
1
4
L9-4/1/D
97
2
L9-4/2/D
186
1
L9-4/3/D
256
1
5
L9-5/1/D
97
2
L9-5/2/D
186
1
L9-5/3/D
256
1
6
L9-6/1/D
97
2
L9-6/2/D
186
1
L9-6/3/D
256
1
7
L9-7/1/D
97
2
L9-7/2/D
186
1
L9-7/3/D
256
1
8
L9-8/1/D
97
2
L9-8/2/D
186
1
L9-8/3/D
256
1
10
L9-10/1/D
97
2
L9-10/2/D
186
1
L9-10/3/D
256
1
13
L9-13/1/D
97
2
L9-13/2/D
186
1
L9-13/3/D
256
1
15
L9-15/1/D
97
2
L9-15/2/D
186
1
L9-15/3/D
256
1
16
L9-16/1/D
97
2
L9-16/2/D
186
1
L9-16/3/D
256
1
20
L9-20/1/D
97
2
L9-20/2/D
186
1
L9-20/3/D
256
1
25
L9-25/1/D
107
2
L9-25/2/D
199
1
L9-25/3/D
285
1
240
30
L9-30/1/D
110
2
L9-30/2/D
199
1
L9-30/3/D
285
1
32
L9-32/1/D
110
2
L9-32/2/D
1