483-G Datasheet, PDF (1/4 Pages) ETAL Group – Aircraft systems and equipment (fixed wing and helicopters); other extra low voltage wiring applications; defence equipment; communications systems

High Performance Thermal Circuit Breaker 483-...
Description
Single pole, miniaturised, aircraft style thermal circuit breaker with
tease-free, trip-free, snap action mechanism and push/pull on/off manual
actuation (M-type TO CBE to EN 60934). An indicator band on the
push button clearly shows the tripped/off position. Threadneck panel
mounted, available in metric and US (MS 3320) configurations. Advanced
two-chamber design contributes to fail-safe operation. Temperature
compensated from -55 °C to +125 °C, with optional auxiliary contacts,
and fully approved for use on a wide range of aircraft and equipment. Full
specification ensures suitability for the most demanding applications. For
three pole version see type 583.
Typical applications
1
483-...
without auxiliary contact
with auxiliary contact
Aircraft systems and equipment (fixed wing and helicopters);
other extra low voltage wiring applications; defence equipment;
communications systems.
Technical data
Standard current ratings and typical volt drop values
Current rating (A)
1
2
2.5
3
4
5
7.5
Volt drop (mV) Current rating (A) Volt drop (mV)
750
10
190
520
15
190
400
20
200
360
25
170
350
30
160
260
35
150
230
Approvals
Authority
Standard Rated voltage
Current
ratings
UL
UL 1077 AC 250 V
1 A…25 A
DC 75 V
1 A…35 A
CSA
Bw
C22.2 No
235
VG 95345,
part 6
AC 250 V
DC 75 V
AC 115 V, 400 Hz
DC 28 V
1 A…25 A
1 A…35 A
1 A…25 A
1 A…25 A
Bw
LN 29886 AC 115 V, 400 Hz 1 A…25 A
DC 28 V
1 A…25 A
QPL Canada
VG 95345, AC 115 V, 400 Hz
Dep. of National part 6
DC 28 V
Defence
1 A…25 A
1 A…25 A
QPL Sweden LN 29886
Defence
MS 3320
Material Admin.
AC 115 V, 400 Hz
DC 28 V
1 A…25 A
1 A…25 A
QPL UK
Ministery of
Defence
LN 29886 AC 115 V, 400 Hz 1 A…25 A
DC 28 V
1 A…25 A
Dep. of the
Navy
MS 3320 AC 115 V, 400 Hz 1 A…20 A
(V)
DC 28 V
1 A…20 A
Voltage rating

AC 115 V (300 Hz to 800 Hz); DC 28 V
(higher voltage ratings upon request)
Current rating range
1...35 A
Auxiliary circuit
0.5 A, DC 28 V
Typical life

Ambient temperature
20,000 operations mechanical or
10,000 operations at I_N (≤ 25 A)
5,000 operations at I_N (30 + 35 A)
-55...+125 °C (-67...+257 °F)
Insulation co-ordination
(IEC 60664 and 60664A)
rated impulse
withstand voltage
1.5 kV
pollution
degree
3
Dielectric strength
(IEC 60664 and 60664A)
operating area
main to aux. circuit
test voltage
AC 1,500 V
AC 1,500 V
Insulation resistance
> 100 MΩ (DC 500 V)
Interrupting capacity I_cn
AC 115 V (400 Hz): 5 A
7.5...35 A
DC 28 V: 1...25 A
30 + 35 A
2,000 A
2,500 A
6,000 A
4,000 A
Degree of protection
(IEC 60529/DIN 40050)
operating area IP40
terminal area IP00
Vibration
(sinusoidal)


15 g (70-2000 Hz), ± 0.76 mm (5-70 Hz)
to VG 95210, sheet 19,
IEC 60068-2-6, test Fc/ISO 7137
Vibration (random)
16.4 g rms, 0.2 g²/Hz ± 1.5 dB
to VG 95210, sheet 29, ISO 7137
Acceleration
17 g, to ISO 2669
Shock

75 g (11 ms) to VG 95210, sheet 28,
IEC 60068-2-27, test Ea/ISO 7137
Corrosion

96 hours at 5 % salt mist, severity A
48 hours at 20 % salt mist, severity B
to VG 95210, sheet 2,
IEC 60068-2-11, test Ka/ISO 7137
Humidity


240 hours at 95 % RH,
to VG 95210, sheet 7,
IEC 60068-2-3, test C/ISO 7137
Explosion

to VG 95210, sheet 10,
MIL-STD-202, meth. 109
Altitude
≤ 25,000 m above sea level
Mass
max. 29 g with auxiliary contact

max. 25 g without auxiliary contact
Weight reduction through aluminium threadneck: approx. 3 g
1646
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