Bộ DIMMER Helvar - Transistor Dimmer (454)

Transistor Dimmer (454)

 The DIN-rail mounted 454 is a four-channel transistor dimmer. It can operate in one of two modes: leading edge or trailing edge. All four channels operate in the same selected mode, with each channel capable of controlling 2.2 A.

It supports capacitive and resistive loads, and it can be connected directly to mains-voltage lamps and to low-voltage lamps with electronic transformers. The 454 is not for use with inductive loads.

Each channel of the dimmer has both current and thermal protection.

The dimmer features an LED segment display. There is a push button user interface for monitoring, manual configuration and control purposes.

 Key Features

  • Trailing-edge or leading-edge dimming
  • LED segment and push buttons for manual configuration, including the following output types: linear, square, S-law, DALI logarithmic, LED curve, and DALI linear
  • Capable of handling resistive and capacitive loads
  • Manual wired override input
  • Voltage and frequency compensation
  • Overcurrent and temperature protection included
  • Power-on to last level or to user-defined level

 Additional Features

 The following features may be accessed using Helvar’s Toolbox or Designer software:

  • /Min. levels, fade times, scenes and groups
  • System failure level/ignore

 


 Output

Output Type

Additional Information

t 0

Non-Dim

Switched on and off only

t 1

Linear

Optimised for incandescent

t 2

Square

Optimised for incandescent

t 3

S-law

Optimised for incandescent

t 4

DALI logarithmic

IEC 62386-205

t 5*

LED curve

Optimised for LED

t 6

DALI linear

IEC 62386-205

 

Technical Data

 

Mains:

Solid core: up to 4 mm²Stranded: 2.5 mm²

DALI:

0.5 mm² – 1.5 mm², max. 300 m @ 1.5 mm²

SDIM/DMX:

0.22 mm² – 1.5 mm² low-loss RS485 type (multistranded, twisted and shielded)

Power

Mains supply:

100 VAC – 240 VAC (nominal)85 VAC – 264 VAC (absolute)45 Hz – 65 Hz

Power consumption:

2.3 W (excluding loads)

Load current:

2.2 A per channel

Heat dissipation:

11 W with maximum load (resistive)

DALI consumption:

2 mA

External protection:

10 A Type C MCB maximum.The external supply must be protected.

Inputs

Communication:

DALI, SDIM and DMX

Override:

Switched input

User interface:

2 push buttons for configuration

Mechanical data

Dimensions:

160 mm × 91 mm × 62 mm

Housing:

DIN-rail case; 9 module width

Material:

Polycarbonate/ABS mix, UL94 V–0

Mounting:

DIN rail (installation in switchgear/controlgear cabinet)

Weight:

250 g

IP code:

30 (IP 00 at terminals)

Operating conditions

Ambient temperature:

0 °C to +40 °C

Relative humidity:

Max. 90 %, noncondensing

Storage temperature:

–10 °C to +70 °C

 

 Conformity and standards

 

DALI:

DALI standard IEC 62386, with Helvar additions

SDIM:

Helvar SDIM protocol

DMX:

DMX512-A protocol (max. refresh rate: 33 Hz)

EMC emission:

EN 55015

EMC immunity:

EN 61547

Safety:

EN 61347-2-11

Environment:

Complies with WEEE and RoHS directives.

Software compatibility

Designer:

4.1 or later

Toolbox:

2.3.6 or later

 


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