TRE..S-2, TR.. S-2,
ESS 20,DSS 20
1. Scope of delivery
TRE.. S-2 or TR.. S-2
5-stage transformer TRE.. S-2 or TR.. S-2
with foot bracket and connection terminals,
operating instructions.
ESS 20 or DSS 20 (Option)
5-stage switch ESS 20 or DSS 20 for 5-stage
transformer, operating instructions.
2. Symbols used
Warning symbols
Danger to life!
Non-observance can result in
death or serious physical
DANGER
injuries.
Miscellaneous symbols
INFO symbol: This symbol
i
indicates important information
and tips for text passages
overseen.
●
Symbol for list:
List with important information
about the respective topic.
Symbol for operations:
List with tasks to carry out.
Carry out the instructions given
in the sequence.
3. Product description
5-stage transformers TRE.. S-2
230-V transformers with 5 output voltages.
Open design. Robust foot bracket for
attachment. In combination with stage switch
for speed control of single-phase AC fans.
5-stage transformers TR.. S-2
400-V transformers with 5 output voltages.
Open design. Robust foot bracket for
attachment. In combination with stage switch
for speed control of three-phase current fans.
5-stage switch ESS 20 (Option):
In combination with TRE.. S-2 transformers
for speed control of DC fans.
5-stage switch DSS 20 (Option):
In combination with TR.. S-2 transformers for
speed control of three-phase current fans.
4. Technical data
Mains transformer TRE.. S-2, TR.. S-2
– in accordance with EN 61558 –
● Permitted ambient
temperature
● Relative air humidity
(at 20 °C room temperature)
● Protection class:
For further data, refer to the type plate.
Option: Stage switch ESS 20,
DSS 20 – in accordance with EN 60947
–
● Measurement voltage
● Mains frequency:
● Maximum load
● Installation depth ESS 20 81 mm
Installation depth DSS 20 133 mm
● Permitted ambient
temperature
● Protection class:
● Cover
(protection against
contact)
Imprint: © Maico Elektroapparate-Fabrik
GmbH. Original German instructions. Print
errors, reservations for errors and technical
modifications.
max. + 40 °C
55% ... 60%
IP 00
max. 400 V
50 Hz or 60 Hz
20 A
max. + 40 °C
IP 00
in accordance with
BGV A3
7