4930-01 Datasheet, PDF (1/4 Pages) ETAL Group – Aircraft electrical systems and equipment, and other high performance applications

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
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de-energised RCCB, the device will adopt the same switching status
as the control circuit breaker.
4930 (RCCB)
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.
Technical data (T_A = 25 °C, U_e = DC 28 V or AC 115V/400 Hz)
Approved to MIL-PRF-83383.
Operating data LINE
(see also MIL-PRF-83383)
Typical applications
Aircraft electrical systems and equipment, and other high performance
applications.
Voltage ratings U_e
(operating voltage range)
Current rating range I_N
Bias current

AC 115 V 400 Hz (AC 104...126 V);
DC 28 V (DC 18...36 V)
5...100 A (see ordering information)
typically 2.5 mA at DC 28 V
typically 25 mA at AC 115 V
Ordering information
Switching current/
switching period for
internal linear motor

typically 3.4 A / 28 ms at DC
typically 2.8 A / 17 ms at AC
Type No.
4930 single pole remote control circuit breaker (RCCB)
Variation
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
5...100 A
Optical indication ON/OFF status indicator (near terminal A1)
Load circuit LOAD
Current rating range I_N
Interrupting capacity

5...100 A (see ordering information)
DC 28 V: 6,000 A
AC 115 V 400 Hz: 3,600 A
Voltage drop at I_N


see table 1
(standard current ratings and
typical voltage drop values)
4930 - 01 - 5 A ordering example
Overload disconnection see table 2

(typical time/current characteristics)
I_N/A E-T-A
MIL
part number part number
E-T-A
MIL
part number part number
5
4930-01-5A M83383/02-01 4930-03-5A M83383/01-01
7.5 4930-01-7.5A M83383/02-02 4930-03-7.5A M83383/01-02
Trip limits
Control circuit ICU
ICU


see table 2
Indicator/Control Unit
thermal circuit breaker 0.5 A
e.g. 4120-G111-K1M1-A1S0ZN-0.5A
10 4930-01-10A M83383/02-03 4930-03-10A M83383/01-03
15 4930-01-15A M83383/02-04 4930-03-15A M83383/01-04
Trigger current for ICU
(“TRIP FREE“-mode) /
duration
approx. 3.2 A / 5 s max
20 4930-01-20A M83383/02-05 4930-03-20A M83383/01-05
25 4930-01-25A M83383/02-06 4930-03-25A M83383/01-06
35 4930-01-35A M83383/02-07 4930-03-35A M83383/01-07
40 4930-01-40A M83383/02-08 4930-03-40A M83383/01-08
50 4930-01-50A M83383/02-09 4930-03-50A M83383/01-09
Control voltage U_ICU
RCCB “OFF”
(ICU open)

RCCB “ON”
(ICU closed)

Limits:
U_ICU > 2 V (25 °C)
(> 1.5 V between -54...+71 °C /
-65...+160 °F)
U_ICU < 0.6 V (25 °C)
(< 0.2 V between -54...+71 °C /
-65...+160 °F)
60 4930-01-60A M83383/02-10 4930-03-60A M83383/01-10
Control current I_ICU
typically 0.4 mA
75 4930-01-75A M83383/02-11 4930-03-75A M83383/01-11
80 4930-01-80A M83383/02-12 4930-03-80A M83383/01-12
100 4930-01-100A M83383/02-13 4930-03-100A M83383/01-13
Additional control units

ON/OFF-cycling time
(e. g. additional relay
contact in ICU circuit)
one relay contact or one ON/OFF switch
is applicable (see application note ICU)
ON > 80 ms / OFF > 80 ms
Approvals
Authority Standard
Voltage ratings
Current
ratings
Signal output AUX
Auxiliary contacts


Voltage ratings
change over contacts
S1 - S2 is open, when RCCB main
contact is open
DC 28 V, AC 115 V (400 Hz)
DSCC
MIL-PRF-83383 AC 115 V, 400 Hz 5 A…100 A
DC 28 V
5 A…100 A
Current ratings


resistive load: 3 A 
inductive load 1.5 A
lamp load: 0.5 A
1646
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