Thermal automotive Mini-CBE 1620-...
Description
Single pole, thermal miniaturised circuit breaker designed for automotive
applications. Fits into fuse blocks designed to ISO 8820-3, Type F.
Automatic reset (for DC 12 V only) and open circuit (modified reset to
SAE) version optional. Open circuit version ensures contacts staying
open as long as power is on. The circuit breaker will reset after the
load is removed. Particularly suitable for installation in inaccessible
locations.
Current ratings correspond to those of blade fuses. Clear colour
coding of the ratings: blade fuse and circuit breaker of the same colour
have the same rating.
Meets the requirements of SAE J553.
US patent number:
US 8,576,042,B2
1
1620-1/-2
Technical data
1620-3
1620-3H
Typical applications
Protection of electrical systems of passenger cars, trucks, buses,
watercraft, extra low voltage wiring systems.
Voltage rating
Max. voltage rating
Current ratings
Ordering information
Type No.
1620
single pole thermal Mini-CBE with standard characteristic curve
Version, according to SAE J553
1
type 1, DC 12 V automatic reset
2
type 2, DC 12 V modified reset
3
type 3, DC 24 V with reset button
3H
type 3*, DC 24 V with reset button and manual release facility
Current ratings
5
7.5
10
15
20
25 30 A
1620 - 1 - 10 A
ordering example
1620-1/-2: DC 12 V
1620-3/-3H: DC 12 V, DC 24 V
1620-1/-2: DC 14.5 V
1620-3/-3H: DC 29.0 V
DC 12 V: 5...30 A
DC 24 V: 5...25 A
300 operations at 2 x I
N
-40...+85 °C (-40…+185 °F)
(for higher temperatures please enquire)
≤ 15 s
Service short-circuit
breaking capacity
Ambient temperature
Reset period for 1620-1
(at 23 °C)
Reset period for 1620-2
(at 23 °C) after 5 sec at
rated voltage
Degree of protection
(IEC 60529)
< 35 s
operating area IP40 (-3)
operating area IP50 (-1, -2)
terminal area IP00
≥ 3 break operations at 150 A, or
≥ 1 break operation at 2,000 A
10 g (57-500 Hz), ± 0.38 mm (10-57 Hz)
to IEC 60068-2-6, test Fc
10 frequency cycles/axis
SAE-J553, Step No. 14, § 4.2.7.1.5
50 g (11 ms)
to IEC 60068-2-27, test Ea
SAE-J553, Step No. 14, § 4.2.7.1.6
48 hrs in 5 % salt mist,
to IEC 60068-2-11, test Ka
SAE-J553, Step No. 14, § 4.2.7.1.3
240 hrs in 95 % RH,
to IEC 60068-2-78, test Cab
SAE-J553, Step No. 14, § 4.2.7.1.2
approx. 3 g
Current ratings, typical voltage drop values and colour coding
Current rating (A)
5
7.5
10
15
20
25
30
Voltage drop (mV)
< 150
< 150
< 150
< 150
< 150
< 150
< 150
Housing cap colour
light brown
brown
red
blue
yellow
white
light green
Ultimate short-circuit
breaking capacity
Vibration
Shock
Corrosion
Humidity
Mass
Caution:
It is good practice to switch off the vehicle’s ignition system before
manually releasing or re-setting the circuit breaker. Free travel of the
reset button must be ensured! Please ensure to push in the actuator
smoothly and completely.
Depending on the socket used and with the 30 A device carrying a
full load, the temperatures at the terminals may rise above the allowed
SAE value.
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Thermal automotive Mini-CBE 1620-...
Dimensions
1620-1 / 1620-2
Internal connection diagrams
1620-1
13.3
.524
7
.276
1
1620-2
1
1620-3
1
1620-3H
1
25
.984
11.6
.457
1
2
.079
GERMANY
2
2
2
2
10.4
.409
Typical time/current characteristic curve at +23 °C / +73.4 °F
7.5
.295
5...30 A
10000
0.8
3.8 .032
.149
1000
-40 °C
+85 °C
+23 °C
2.8
10.9
.429
4.5
.177
12.7
.500
13.3
.524
2
.079
2.8
.110
3.5
.138
1.8
.071
trip time in seconds
1620-3
0.6
.024
100
10
4.5
±0.5
OFF
.177
±.019
OFF
0.8
±0.5
ON
.031
±.019
ON
2
.079
1
25
.984
GERMANY
0.1
0.4 0.6 0.8 1
11.6
.457
2
4
6 8 10
20
40
times rated current
The time/current characteristic curve depends on the ambient temperature
prevailing. In order to eliminate nuisance tripping, please multiply the
circuit breaker current ratings by the derating factor shown below. See also
section Technical information.
1620-3H
4.8
.189
13.3
.524
Ambient temperature °F
Ambient temperature °C
3.5
.138
7
.275
-40
-40
0.73
+73.4
+23
1
-22
-30
0.78
+104
+40
1.09
-4
-20
0.82
+122
+50
1.16
+14
-10
0.86
+140
+60
1.25
+32
0
0.91
+158
+70
1.33
+50
+10
0.95
+185
+85
1.43
Derating factor
Ambient temperature °F
Ambient temperature °C
Derating factor
GERMANY
11.6
.457
24.95
.982
0.8
±0.5
ON
.031
±.019
ON
4.5
±0.5
OFF
.177
±.019
OFF
30.2
1.19
This ist a metric design and millimeter dimensions take precedence (mm
inch)
All dimensions without tolerances are for reference only. In the interest of improved design,
performance and cost effectiveness the right to make changes in these specifications without
notice is reserved. Product markings may not be exactly as the ordering codes. Errors and
omissions excepted.
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