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Technical
Section 11
Dimensions
Section 12
7
iTR transformers (cont.)
Measurement
indication
Connection
DB123272
Tightening
torque
Copper cables
Rigid
Flexible or with
ferrule
0.5 N.m < 2.5 mm
2
< 2.5 mm
2
PZ1
6 mm
6 mm
Technical data
Main characteristics
Primary voltage
230 V AC ±10 %
Secondary voltage
on load
For bell transformers 8-12-24 V AC ±15 %
For safety transformers 12-24 V AC ±5 %
Transformer
catalogue numbers
Rated
secondary voltage
Off load voltage
A9A15214
8 V
12 V
A9A15213
8 V
12 V
12 V
16 V
A9A15216
8 V
13 V
12 V
18 V
A9A15212
8 V
13 V
12 V
18 V
A9A15215
12 V
16 V
24 V
32 V
A9A15218
12 V
14 V
24 V
28 V
A9A15219
12 V
14 V
24 V
28 V
A9A15220
12 V
14 V
24 V
28 V
A9A15222
12 V
14 V
24 V
28 V
Additional characteristics
Degree of protection
(IEC 60529)
Device only
IP20 with terminal shield
Operating temperature
-20°C to +55°C
Storage temperature
-25°C to +80°C
Note: Transformers have an off load operating voltage that is higher than the rated voltage.
For loads that are sensitive to overloads (electro-magnetic circuits), the transformer must be
made to operate at ln. After operation of the protection device upon an overload, cut-off the
power supply and let the transformer cool down before restart.
IP20
Clip on DIN rail 35 mm.
Bell transformer: indifferent position of installation.
Safety transformer: vertical position.
Weight (g)
iTR
Type
Cat. no.
Weight
Bell
A9A15212
384
A9A15213
240
A9A15214
237
A9A15215
633
A9A15216
275
Safety
A9A15218
1082
A9A15219
1125
A9A15220
1190
A9A15222
1309
Dimensions (mm)
DB123215
89
45
36
54
90
5
16
39
A9A15212
A9A15213
A9A15214
A9A15216
A9A15215
A9A15218
A9A15219
A9A15220
A9A15222
DB123957
DB123310
DB123312
DB122945
DB122946