Remote Control Circuit Breaker 4930 (RCCB)
Description
Single pole remote control circuit breaker (RCCB), temperature
compensated, either with or without auxiliary contacts, and featuring
a bimetal actuator which trips the circuit breaker mechanism within
a specified time under overcurrent conditions. The switching contact
latching system is operated by a bi-stable linear motor controlled by
electronic circuitry incorporated within the device. Remote control
is achieved through the use of a conventional single pole manually
operated aircraft style thermal circuit breaker type 4120-0,5 A which
connects the control input of the RCCB to ground.
With the control circuit breaker (ICU) in the ON position, the RCCB will
switch on. When the control circuit breaker is switched off, the RCCB
will change to the OFF condition. If power is applied to a previously
de-energised RCCB, the device will adopt the same switching status
as the control circuit breaker.
If the RCCB trips thermally in the event of a load circuit fault, the
electronic circuitry will also cause the control circuit breaker to trip,
thereby providing a visual indication through the position of the circuit
breaker actuator.
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4930 (RCCB)
(T = 25 °C, U = DC 28 V or AC 115V/400 Hz)
Technical data
A
e
Approved to MIL-PRF-83383.
Operating data LINE
(see also MIL-PRF-83383)
Voltage ratings Ue
AC 115 V 400 Hz (AC 104...126 V);
(operating voltage range) DC 28 V (DC 18...36 V)
Typical applications
Current rating range IN
Bias current
5...100 A (see ordering information)
Aircraft electrical systems and equipment, and other high performance
applications.
typically 2.5 mA at DC 28 V
typically 25 mA at AC 115 V
Switching current/
switching period for
internal linear motor
Ordering information
typically 3.4 A / 28 ms at DC
typically 2.8 A / 17 ms at AC
Type No.
Optical indication ON/OFF status indicator (near terminal A1)
4930 single pole remote control circuit breaker (RCCB)
Variation
Load circuit LOAD
Current rating range IN
Interrupting capacity
5...100 A (see ordering information)
01 standard, with auxiliary contacts
02 with modified terminal barrier and auxiliary contacts
03 standard, without auxiliary contacts
04 with modified terminal barrier but without auxiliary contacts
Current ratings
DC 28 V: 6,000 A
AC 115 V 400 Hz: 3,600 A
Voltage drop at IN
see table 1
(standard current ratings and
typical voltage drop values)
5...100 A
Overload disconnection
see table 2
(typical time/current characteristics)
4930 - 01 - 5 A ordering example
Trip limits
see table 2
IN/A
E-T-A
part number
MIL
part number
E-T-A
part number
MIL
part number
Control circuit ICU
ICU
Indicator/Control Unit
thermal circuit breaker 0.5 A
e.g. 4120-G111-K1M1-A1S0ZN-0.5A
5
4930-01-5A
M83383/02-01 4930-03-5A
M83383/02-02 4930-03-7.5A
M83383/02-03 4930-03-10A
M83383/02-04 4930-03-15A
M83383/02-05 4930-03-20A
M83383/02-06 4930-03-25A
M83383/02-07 4930-03-35A
M83383/02-08 4930-03-40A
M83383/02-09 4930-03-50A
M83383/02-10 4930-03-60A
M83383/02-11 4930-03-75A
M83383/02-12 4930-03-80A
M83383/01-01
M83383/01-02
M83383/01-03
M83383/01-04
M83383/01-05
M83383/01-06
M83383/01-07
M83383/01-08
M83383/01-09
M83383/01-10
M83383/01-11
M83383/01-12
7.5
10
15
20
25
35
40
50
60
75
80
100
4930-01-7.5A
4930-01-10A
4930-01-15A
4930-01-20A
4930-01-25A
4930-01-35A
4930-01-40A
4930-01-50A
4930-01-60A
4930-01-75A
4930-01-80A
Trigger current for ICU
(“TRIP FREE“-mode) /
duration
approx. 3.2 A / 5 s max
Control voltage UICU
RCCB “OFF”
(ICU open)
Limits:
UICU > 2 V (25 °C)
(> 1.5 V between -54...+71 °C /
-65...+160 °F)
UICU < 0.6 V (25 °C)
(< 0.2 V between -54...+71 °C /
-65...+160 °F)
RCCB “ON”
(ICU closed)
Control current IICU
typically 0.4 mA
Additional control units
one relay contact or one ON/OFF switch
is applicable (see application note ICU)
ON/OFF-cycling time
(e. g. additional relay
contact in ICU circuit)
4930-01-100A M83383/02-13 4930-03-100A M83383/01-13
ON > 80 ms / OFF > 80 ms
Signal output AUX
Approvals
Auxiliary contacts
change over contacts
S1 - S2 is open, when RCCB main
contact is open
Authority Standard
Voltage ratings
Current
ratings
Voltage ratings
Current ratings
DC 28 V, AC 115 V (400 Hz)
resistive load: 3 A
inductive load 1.5 A
lamp load: 0.5 A
DSCC
MIL-PRF-83383 AC 115 V, 400 Hz
DC 28 V
5 A…100 A
5 A…100 A
1646
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