Bussmann
®
HI-AMP Reset Circuit Protectors
Signle Pole Thermal Type Breakers
Auto, Manual & Switchable
Series 180
SPECIFICATIONS
Single Pole Thermal Type Breakers
Ratings:
40A to 150A; 30 VDC.
Operating Temperature:
–25°F (–32°C) to 180°F (82°C).
Storage Temperature:
–30°F (–34°C) to 300°F (149°C).
Applications:
Typically used in auxiliary and accessory circuits -- trucks,
buses, RV’s and marine applications. Others might include battery chargers
and DC audio systems. Series 181, 184 & 185 are sealed for engine com-
partment and bilge area applications.
Housing:
Thermoset plastic; UL rated 94VO; 311°F (155°C). Stud insulators
are provided on all covered units.
Mounting:
Panel or surface.
Indicator:
Series 184 & 185 have a unique reset mechanism which provides
visible indication of tripped condition.
Approvals:
Complies with SAE Standard J1625
TEMPERATURE DERATING CURVES
200%
% 0F RATED CURRENT
% 0F RATED CURRENT
150%
100%
50%
0%
-50º
TIME VS. PERCENT OF RATED CURRENT
600%
500%
400%
300%
200%
100%
0
5
10 15
20 30 40 100 200 500
TIME IN SECONDS
0º
50º 77º 100º 150º
200º
TEMPERATURE IN DEGREES F.
250º
Dimensions
Surface Mount
1.05"
(26.67)
Reset lever
(Shown in
operating
position)
Panel Mount
.26" (6.60) dia. Mtg.holes (2)
Reset lever
(Shown tripped)
.26" (6.60) dia.
Mtg.holes (2)
2.91"
(73.91)
NEW!
2.41"
(61.21)
1.54"
(39.12)
T
RE
SE
2.89"
(73.41)
2.23"
(56.64)
1.90"
(48.26)
Stud insulators
1.90"
(48.26)
Molded cover
1.44"
(36.58)
.40" (10.16)
1/4"-28 Studs
*Overall heights of Series 181 &183
.57"
(14.49)
.66"
(16.76)
1.79"
(45.47)
Molded cover
Tamper proof
cover
Trip button (Series 185)
.89"
(22.61)
.31" (7.87)
1.44"*
(36.58)
1.06"
(26.92)
1.09"*
(27.69)
Flange mount
gasket for
through-wall
applications
(option 07)
PART NUMBERING SYSTEM
Series
Rating
Mounting
Terminal Hdwr.
Marking
1 8
ttt
181 – Auto Reset
183 – Auto Reset
184 – Manual Reset
185 – Switchable/Manual
ttt
040 – 40amps
050 – 50 amps
060 – 60 amps
070 – 70 amps
080 – 80 amps
090 – 90 amps
100 – 100 amps
110 – 110 amps
120 – 120 amps
135 – 135 amps
150 – 150 amps
t
–
tt
00 – Ship w/o nuts
01 – Sems nuts installed
02 – Sems nuts shipped bulk
03 – Stainless Steel Std. nuts &
washers installed
04 – Stainless Steel Std. nuts &
washers shipped bulk
05 – Sems nuts - bulk/eyelets installed
06 – Sems nuts & eyelets installed
07 – Flange gasket & Sems nuts installed
08 – Threaded insert & Sems nuts installed
tt
0 – Blank cover
1 – Standard Marking; Part Number,
Amp Rating
181, 184, 185 Series - Top Surface
183 Series - Side Surface
Consult factory for special markings.
F – Surface Mount
P – Panel Mount
12-16-98
SB98107 Rev. A
The only controlled copy of this BIF document is the electronic read-only version located on the Bussmann Network Drive. All other copies
of this BIF document are by definition uncontrolled.This bulletin is intended to clearly present comprehensive product data and provide
technical information that will help the end user with design applications. Bussmann reserves the right, without notice, to change design
or construction of any products and to discontinue or limit distribution of any products. Bussmann also reserves the right to change or
update, without notice, any technical information contained in this bulletin. Once a product has been selected, it should be tested by the
user in all possible applications.
Form No. 180 Hi-Amp
Page 1 of 1
BIF Document: 2065
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