DF11xx DF12xx DF25xx
Electronic circuit breakers, standard
6
4 Function
The circuit protection modules are available with either fixed or adjustable currents and are equipped
with a fail-safe element (integrated fuse).
DF1100
DF1208
DF1210
DF1212
DF1214
DF1216
DF1220
DF2520
DF2524
Supply module
●
—
Circuit protection module
—
●
Interface
—
—
IO-Link
Max. number of circuit pro-
tection modules per supply
module
—
10
Electrical data
Input voltage
[V]
18...30 DC (SELV/PELV)
Nominal voltage
[V]
24 DC
NEC Class 2
—
—
—
●
●
—
—
●
●
Input current
(= max. total current)
[A]
40
—
Number of channels
—
1
2
Nominal current I
N
[A]
8
10
2
4
6
1…10
1…10
1…4
Fail-safe I
N
[A]
8
10
2
4
6.3
16
16
4
Mechanical data
Installation
rail TH35 (to EN 60715)
Device width
[mm]
12.5
Ambient temperature
[°C]
-25...60
Storage temperature
[°C]
-40...70
Protection rating
Ò
Installa-
tion
IP 30 (installation area)
IP 20 (operating area)
Electrical connection
Type
push-in terminals, contact lever/strip
● = applicable
4.1 Temperature factor / continuous current rating
The time-current characteristic curve depends on the ambient temperature. To determine the max.
permitted load current multiply the nominal device current by the temperature factor taking into
consideration the series connection.
Ambient temperature [°C]
0
10
23
40
50
60
Temperature factor
1
1
1
0.95
0.90
0.85
With series installation the nominal device current can be max. 80% or has to be overdimensioned
accordingly. With increased temperature the load current warning limit "warning limit typ. 0.8 x I
N
" is
reduced by the temperature factor.
4.2 Fail-safe element
The load circuits are additionally protected by the circuit protection modules that are equipped with a
fail-safe element (integrated fuse). The fail-safe element is adapted to the nominal current I
N
of the
respective circuit protection module and the respective wire cross-sections.
