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5.20
General Catalogue • Modular Devices
Transformers, Bells & Buzzers
Description
Provide separated extra low
voltage (SELV) 8, 12, 24V~.
Technical Data
Secondary voltages:
8V, 12V, 24V~
Bell transformers are
short-circuit protected.
Bells/buzzers:
Max. continuous duty
≤ 30 minutes.
Cable capacities: 6mm
2
Output
Bells: 85 dBA
Buzzers: 78 dBA
When a bell transformer is
installed in an enclosure with
mains voltage equipment, 230V
cable should be used on the
secondary side of the
transformer or extra low voltage
cable should be sheathed within
the enclosure.
Note
The transformers have
a higher no load voltage.
The stated voltages
correspond to the
voltages on nominal load.
1 Mod = 17.5mm
2 Mod = 35mm
3 Mod = 52.5mm
4 Mod = 70mm
6 Mod = 95mm
Safety Transformers
Characteristics
Width
Cat ref.
230V/12-24V~ 50Hz, 25VA 50/60 Hz
4 Mod
ST312
230V/12-24V~ 50Hz, 16VA 50/60 Hz
4 Mod
ST313
230V/12-24V~ 50Hz, 40VA 50/60 Hz
4 Mod
ST314
230V/12-24V~ 50Hz, 63VA 50/60 Hz
6 Mod
ST315
Bell Transformers
Characteristics
Width
Cat ref.
230V/8V~ 50/60 Hz, 8-12V, 4VA
2 Mod
ST301
230V/8-12V~ 50/60 Hz, 8-12V, 8VA
2 Mod
ST303
230V/8-12V~ 50/60 Hz, 8-12V, 16VA
3 Mod
ST305
Bells
Characteristics
Width
Cat ref.
8/12V~, 5VA - 0.33A
1 Mod
SU212
230V~, 6.5VA - 0.03A
1 Mod
SU213
Buzzers
Characteristics
Width
Cat ref.
8/12V~, 4VA - 0.33A
1 Mod
SU214
230V~, 6.5VA - 0.03A
1 Mod
SU215
ST313
ST301