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.
1
Typical applications
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
Voltage rating
AC 115 V (300 Hz to 800 Hz); DC 28 V
(higher voltage ratings upon request)
Standard current ratings and typical volt drop values
Current rating range
Auxiliary circuit
Typical life
1...35 A
Current rating (A)
Volt drop (mV) Current rating (A) Volt drop (mV)
0.5 A, DC 28 V
1
750
520
400
360
350
260
230
10
15
20
25
30
35
190
190
200
170
160
150
20,000 operations mechanical or
10,000 operations at IN (≤ 25 A)
5,000 operations at IN (30 + 35 A)
2
2.5
3
Ambient temperature
-55...+125 °C (-67...+257 °F)
Insulation co-ordination
(IEC 60664 and 60664A) withstand voltage
1.5 kV
rated impulse
pollution
degree
3
4
5
Dielectric strength
(IEC 60664 and 60664A)
operating area
7.5
test voltage
AC 1,500 V
AC 1,500 V
main to aux. circuit
Insulation resistance
> 100 MΩ (DC 500 V)
Approvals
Interrupting capacity Icn
AC 115 V (400 Hz): 5 A
7.5...35 A 2,500 A
1...25 A 6,000 A
2,000 A
Authority
UL
Standard
Rated voltage
Current
ratings
DC 28 V:
30 + 35 A 4,000 A
UL 1077
AC 250 V
DC 75 V
1 A…25 A
1 A…35 A
Degree of protection
(IEC 60529/DIN 40050)
operating area IP40
terminal area IP00
CSA
Bw
C22.2 No
235
AC 250 V
DC 75 V
1 A…25 A
1 A…35 A
Vibration
(sinusoidal)
15 g (70-2000 Hz), 0.76 mm (5-70 Hz)
to VG 95210, sheet 19,
AC 115 V, 400 Hz
DC 28 V
1 A…25 A
1 A…25 A
VG 95345,
part 6
IEC 60068-2-6, test Fc/ISO 7137
2
Vibration (random)
16.4 g rms, 0.2 g /Hz 1.5 dB
Bw
LN 29886
AC 115 V, 400 Hz
DC 28 V
1 A…25 A
1 A…25 A
to VG 95210, sheet 29, ISO 7137
Acceleration
Shock
17 g, to ISO 2669
QPL Canada
Dep. of National
Defence
VG 95345, AC 115 V, 400 Hz
1 A…25 A
1 A…25 A
75 g (11 ms) to VG 95210, sheet 28,
IEC 60068-2-27, test Ea/ISO 7137
DC 28 V
part 6
Corrosion
96 hours at 5 % salt mist, severity A
48 hours at 20 % salt mist, severity B
to VG 95210, sheet 2,
QPL Sweden
Defence
Material Admin.
LN 29886
MS 3320
AC 115 V, 400 Hz
DC 28 V
1 A…25 A
1 A…25 A
IEC 60068-2-11, test Ka/ISO 7137
QPL UK
Ministery of
Defence
LN 29886
AC 115 V, 400 Hz 1 A…25 A
DC 28 V 1 A…25 A
Humidity
Explosion
240 hours at 95 % RH,
to VG 95210, sheet 7,
IEC 60068-2-3, test C/ISO 7137
to VG 95210, sheet 10,
MIL-STD-202, meth. 109
Dep. of the
Navy
MS 3320
(V)
AC 115 V, 400 Hz 1 A…20 A
DC 28 V 1 A…20 A
Altitude
Mass
≤ 25,000 m above sea level
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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