CONNECTING COMPETENCE.
W DATA SHEET: EHTD420VA
REMOTE DIMMER 420 VA,
ACTUATED VIA EXTERNAL PUSH-BUTTONS
W FUNCTION
Remote dimmer for controlling the light intensity of all standard type of illuminations, such as e.g. incandescent lamps, high-voltage and
low-voltage halogen lamps with electric or conventional transformers.
The control unit is operated via standard push-buttons by impulses from the 230 VAC operating voltage. Inputs for the following
functions are available:
• Memory On/Off/Dimming
• Memory On (direct start with memory setting)
• Central On (100% lighting intensity) and
• Central Off (0% lighting intensity)
For these resistive-inductive loads or resistive-capacitive loads the dimmer can work in a normal or reverse phase control mode. If the
operating mode has been set incorrectly, or in the event of a short-circuit, it will automatically disconnect the load. In addition, the
EHTD420VAis equipped with thermal overload protection, electronic short-circuit cut-out, overvoltage protection and a soft-start function.
The device is also provided with electronic half-wave balancing and idle monitoring. This ensures the prevention of magnetic bias when
conventional mains transformers are connected and of overvoltages when idling.
SCHRACK TECHNIK GMBH
Seybelgasse 13, A - 1230 Vienna, PHONE +43 1/866 85-0
E-MAIL info@schrack.com, INTERNET www.schrack.com
PAGE 1/4
DATA SHEET: EHTD420VA-E / 04-2010
Errors and omissions excepted.
CONNECTING COMPETENCE.
W FEATURES
•
•
•
•
•
Acutation via standard push-buttons
Dimming capacity: 10 VA – 420 VA
2 module widths only
Phase control and reverse phase control dimmer
Central On and Off function, memory function
W MOUNTING METHOD
• Snap-on fastening on DIN-rail to EN 50022 (2 modules) possible in all standard distribution panels
• Any mounting position possible
W NOTE
The function is not guaranteed to dim compact fluorescent lamps (energy savings lamps).
This remote dimmer is not compatible with NAK 16/3.
W APPLICATIONS
• Lighting control in
- Private houses
- Banks
- Hospitals
- Restaurants
- etc.
SCHRACK TECHNIK GMBH
Seybelgasse 13, A - 1230 Vienna, PHONE +43 1/866 85-0
E-MAIL info@schrack.com, INTERNET www.schrack.com
PAGE 2/4
DATA SHEET: EHTD420VA-E / 04-2010
Errors and omissions excepted.
CONNECTING COMPETENCE.
W TECHNICAL DATA
Operating mode
Control Dimmer
Output
Semiconductor output
Rated voltage
230 V ± 10 %
Frequency range
50 Hz
Own consumption
4.5 W
Overload protection, thermal
Load disconnected when exceeding limit temperature
(auto¬matic reconnection upon falling below temperature)
Overload protection, short-circuit
Load disconnection resulting from internal fault detection
(fault reset by means of mains power disconnection for at least 2s)
Load type
adjustable via rotary switch
Phase angle control (R,L)
AC modulation control (R,C)
Yes
a)
Yes, (observe manufacturer´s specification of min. load)
Incandescent lamps
420 VA
High-voltage halogen lamps
420 VA
Low-voltage halogen lamps b) with conventional transformer
420 W
Low-voltage halogen lamps b) with electronic ballast
420 W
Min. dimming capacity
10 VA
Max. dimming capacity
c) d)
420 VA
Dimmable energy-saving lamps
No
Fluorescent lamps
No
Mercury vapour lamps
No
Parallel compensation
No
Switch-on delay
approx. 1 s, of 0% to 100% (soft start)
Switch-off delay
approx. 1 s, of 0% to 100% (soft stop)
Switching cycles
> 100000
Housing
Material
Installation
Connection type
Torque
Contact area
Distribution installation housing to DIN 43880
polycarbonate PC
rail-mounting to DIN EN 50022
Strain relief clamps
0.6 Nm
0.4 - 2.5 mm²
1.1
L in
1.2
A1 Memory On
1.3
A4 Central On (max. 100%)
1.5
L out
1.6
A2 Memory On/Off/dimming
1.7
A3 Central OFF
2.1
N (neutral)
2.5
Ambient temperature
Atm. humidity
N (neutral)
- 10° C up to + 45° C
max. 85% (exposure to dew not permissible)
Encl. protection type
IP 40 after installation in distribution board
Design requirements
IEC 669 / DIN EN 60669
Dimensions (W x H x D in mm) / 2 modules
Weight
SCHRACK TECHNIK GMBH
Seybelgasse 13, A - 1230 Vienna, PHONE +43 1/866 85-0
E-MAIL info@schrack.com, INTERNET www.schrack.com
36 x 85 x 58
0,146 kg
PAGE 3/4
DATA SHEET: EHTD420VA-E / 04-2010
Errors and omissions excepted.
CONNECTING COMPETENCE.
W TECHNICAL DATA – Continued
Conventional transformers for LV halogen lamps should be loaded least 20%. Too high an inductivity will result in the
dimmer´being switched off (idle detection). It is imperative tu use only trasformers ap¬proved by the manufacturer für phase angle
control (i. e. dimmer control at on).
a)
In the case of LV halogen lamps the transformer´s own power consumption has to be added to the lamp´s wattage when determining the total dissipated energy. With a matched transformer this may be assumed to be approx 10% of the lamp´s wattage.
b)
The dimming capacity is dependent upon the ambient temperature and applies to the specified range. Always allow for sufficient
ventilation in the distribution board. If serveral dimmers are mounted next to each other in the distribution board and also subject
to high loads, a ventilation space of approx 10 mm is recommended.
c)
d)
Observe the manufacturer´s specifications.
DESCRIPTION
ORDER NUMBER
Remote Dimmer 420 VA
EHTD420VA
SCHRACK TECHNIK GMBH
Seybelgasse 13, A - 1230 Vienna, PHONE +43 1/866 85-0
E-MAIL info@schrack.com, INTERNET www.schrack.com
PAGE 4/4
DATA SHEET: EHTD420VA-E / 04-2010
Errors and omissions excepted.