ABB i-bus KNX, Руководство по эксплуатации продукта, Страница: 32 / 264

ABB i-bus
®
KNX
Device technology
30 2CDC508134D0202 | FCA/S 1.x.x.1
2.2.9 Output, rated current 20 AX
Rated values Quantity 1
U
n2
rated voltage
250/440 V AC (50/60 Hz)
I
n2
rated current 20 A
Switching currents
AC3* operation (cos

= 0.45) to DIN EN 60 947-4-1
16 A/230 V
AC1* operation (cos

= 0.8) to DIN EN 60 947-4-1
20 A/230 V
Fluorescent lighting load AX to DIN EN 60 669-1 20 A/250 V (140

F)
1)
Minimum switching capacity
100 mA/12 V
100 mA/24 V
DC current switching capacity (resistive load) 20 A/24 V=
Service life Mechanical lifetime > 10
6
Electronic endurance of switching contacts to
DIN IEC 60 947-4-1
AC1* (240 V/cos

0.8)
> 10
5
AC3* (240 V/cos

0.45)
> 3 x 10
4
AC5a (240 V/cos

0.45)
> 3 x 10
4
Switching times
2)
Maximum relay position change per output and minute
if only one relay is switched. 93
1)
The maximum inrush current peak may not be exceeded.
2)
The specifications apply only after the bus voltage has been applied to the device for at least 10 seconds. Typical delay of the relay is approx. 20
ms.
*What do the terms AC1, AC3 and AC5a mean?
In intelligent installation systems, different switching capacities and performance specifications that are
dependent on the special applications have become established in domestic and industrial installations.
These performance specifications are rooted in the respective national and international standards. The
tests are defined to simulate typical applications, e.g. motor loads (industrial) or fluorescent lamps
(residential).
Specifications AC1 and AC3 are switching performance specifications which have become established in
the industrial field.
Typical application:
AC1
–
Non-inductive or slightly inductive loads, resistive furnaces (relates to switching of
ohmic/resistive loads)
AC3
–
Squirrel-cage motors: Starting, switching off motors during running (relates to (inductive)
motor load)
AC5a
–
Switching of electric discharge lamps
These switching performances are defined in the standard EN 60947-4-1 Contactors and motor-starters -
Electromechanical contactors and motor-starters . The standard describes starters and/or contactors that
were originally used primarily in industrial applications.